Answer
6255 pounds
8.34×750=6255lbs
Plss help due today!!!
The survey contained 10 questions (translated into multiple languages) which resulted in categorical and quantitative data being collected. Some examples are below:
What language do you primarily speak?
Are you aware of the 2020 recipient of the European Lifetime Achievement Award in Writing? Yes or No
What is your age (in years)?
How many books did you read last year?
Do you agree with the following statements: “The European Lifetime Achievement Award recognizes authors of a variety of races and ethnicities”: Strongly Disagree, Disagree, Neither Agree nor Disagree, Agree, Strongly Agree, Do not know.
13) Which variables are quantitative?
14) Give an example of a survey question they might want to include that would result in a categorical response (include the categories).
15) What decisions might they be making with the results of the survey? Why are they interested in these questions?
Answer:
The quantitative variables in the survey are age and the number of books read last year.An example of a survey question that would result in a categorical response could be "What is your gender?" with categories such as male, female, and non-binary.The results of the survey will help the writer's guild understand the opinions and demographics of European book buyers regarding their lifetime achievement award process. Based on the responses, they may make decisions about whether to continue their current process or make changes to better align with the desires of their audience. For example, if the majority of respondents are not aware of the award or do not believe it is inclusive enough, the guild may choose to increase advertising efforts or make changes to their nomination and selection process.
Suppose there are 16 students in your class. If the teacher draws 2 names at random, what is the probability that you and your best friend will be chosen?
1/15
1/120
1/8
3/31
Answer:
The total number of ways to choose 2 students from a class of 16 is given by the combination formula:
C(16,2) = 16! / (2! * (16-2)!) = (1615) / (21) = 120
This means there are 120 possible pairs of students that could be drawn.
The probability of you and your best friend being chosen is the number of ways that you and your friend can be selected divided by the total number of possible pairs. There is only 1 way to select you and your best friend out of the class of 16, so the probability is:
P(you and your best friend are chosen) = 1/120
Therefore, the probability that you and your best friend will be chosen is 1/120. Option (B) is the correct answer.
Answer:
The probability of choosing one specific student out of 16 is 1/16. After one student is chosen, there are 15 students left, so the probability of choosing the second specific student out of the remaining 15 is 1/15. The probability of both events happening is the product of the probabilities: (1/16) x (1/15) = 1/240. However, there are two ways that the students can be chosen (your friend first, then you or you first, then your friend), so we need to multiply the probability by 2: 2 x (1/240) = 1/120. Therefore, the probability of you and your best friend being chosen is 1/120. Answer: 1/120.
ANSWER ASAP!!!!! You will be brainliest!!! To play a game, a 12 sided number cube with faces numbered 1,1,2,2,3,3,3,4,4,4,5,5 is rolled. As a percennt rounded to the nearest tenth, what is the probability of rolling either a 3 or a 5?
Answer:
41.7%----------------------------------
There are 3 of 3's and 2 of 5's out of 12 sides.
The probability of rolling either 3 or 5 is:
(3 + 2)/12 = 5/12 = 41.7% (rounded to the nearest tenth)Answer:
36
9
1/4
Step-by-step explanation:
hope I helped ya :]
Identify a transformation of the base function f left parenthesis x right parenthesis equals 1 over x by observing the equation of the function g left parenthesis x right parenthesis equals 1 over x minus 90.
The function g is the result of the transformation, which changes the entire graph of the function f(x) horizontally to the right by 90 units (x).
what is transformation ?A transformation in mathematics is a function that converts points or objects between two different coordinate systems. It is a method of altering a geometric figure's location, size, or shape without altering its identity or fundamental characteristics. Translations, rotations, reflections, dilations, and combinations of these operations are all considered transformations. They are frequently used in geometry, algebra, and calculus to examine how functions and equations behave under various circumstances and to address issues in a variety of mathematical and scientific fields.
given
The base function f(x) = 1/x undergoes a transformation that may be seen in the equation of the function g(x) = 1/(x-90):
it moves horizontally to the right by 90 units.
The function g is the result of the transformation, which changes the entire graph of the function f(x) horizontally to the right by 90 units (x).
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Question content area top
Part 1
Find the future value of an ordinary annuity if payments are made in the amount R and interest is compounded as given. Then determine how much of this value is from contributions and how much is from interest.
R; % interest compounded semiannually for years.
Question content area bottom
Part 1
The future value of the ordinary annuity is $
177,961.83.
(Round to the nearest cent as needed.)
Part 2
The amount from contributions is $
enter your response here and the amount from interest is
$
enter your response here. (Round to the nearest cent as needed.)
The Amount from contributions = R * n
Define the term future value?The future value refers to the value of an asset or investment at a specified time in the future, based on a specific interest rate or rate of return.
Without knowing the specific values of R, interest rate, and number of years, we cannot calculate the amounts from contributions and interest. However, we can provide the general formula for calculating the future value of an ordinary annuity:
FV = R * [(1 + i)ⁿ - 1] / i
where FV is the future value of the annuity, R is the periodic payment, i is the interest rate per period, and n is the number of periods.
To calculate the amount from contributions, we can multiply the periodic payment R by the number of periods n.
Amount from contributions = R * n
To calculate the amount from interest, we can subtract the amount from contributions from the future value of the annuity.
Amount from interest = FV - R * n
Once the specific values for R, interest rate, and number of years are provided, we can use these formulas to calculate the amounts from contributions and interest.
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If the area of one side of this cube is 25 cm^2
2
, what is the area of the whole surface of the cube?
cm^2
2
Answer:
150 cm2
Step-by-step explanation:
Given side of cube's area = 25. Since Side's a square,
Edge^2 = 5^2 = 5 cm
Total surface area: 6*a² = 6*5*5 = 150 cm2
Let g be the function given by g(x) = x4 -4 x 3 +6x2 -4 x + k, where k is a constant.
A. On what intervals is g increasing? Justify your answer.
B. On what intervals is g concave upward? Justify your answer.
C. Find the value of k for which g has 5 as its relative minimum. Justify your answer.
A. To find the intervals on which g is increasing, we need to find the derivative of g and determine where it is positive. Taking the derivative of g, we get:
g'(x) = 4x^3 - 12x^2 + 12x - 4
To find the critical points, we set g'(x) = 0 and solve for x:
4x^3 - 12x^2 + 12x - 4 = 0
Dividing by 4, we get:
x^3 - 3x^2 + 3x - 1 = 0
(x - 1)^3 = 0
So x = 1 is the only critical point. To determine where g is increasing, we need to test a value in each of the intervals (-∞, 1) and (1, ∞). For example, if we plug in x = 0, we get:
g'(0) = -4 < 0
So g is decreasing on the interval (-∞, 1). If we plug in x = 2, we get:
g'(2) = 20 > 0
So g is increasing on the interval (1, ∞). Therefore, g is increasing on the interval (1, ∞).
B. To find the intervals on which g is concave upward, we need to find the second derivative of g and determine where it is positive. Taking the derivative of g', we get:
g''(x) = 12x^2 - 24x + 12
To find the critical points, we set g''(x) = 0 and solve for x:
12x^2 - 24x + 12 = 0
Dividing by 12, we get:
x^2 - 2x + 1 = 0
(x - 1)^2 = 0
So x = 1 is the only critical point. To determine where g is concave upward, we need to test a value in each of the intervals (-∞, 1) and (1, ∞). For example, if we plug in x = 0, we get:
g''(0) = 12 > 0
So g is concave upward on the interval (-∞, 1). If we plug in x = 2, we get:
g''(2) = 12 > 0
So g is concave upward on the interval (1, ∞). Therefore, g is concave upward on the intervals (-∞, 1) and (1, ∞).
C. To find the value of k for which g has 5 as its relative minimum, we need to set g'(x) = 0 and solve for x:
4x^3 - 12x^2 + 12x - 4 = 0
Dividing by 4, we get:
x^3 - 3x^2 + 3x - 1 = 0
(x - 1)^3 = 0
So x = 1 is the only critical point. To find the corresponding value of k, we plug in x = 1 and set g(1) = 5:
g(1) = 1^4 - 4(1)^3 + 6(1)^2 - 4(1) + k = 5
Simplifying, we get:
k = 6
Therefore, the value of k for which g has 5 as its relative minimum is 6.
Find the 45th derivative of y = cos(2x)
Answer:
Step-by-step explanation:
y=cos2x
y1=-2sin2x=2cos(2x+π/2)
y2=-2*2sin (2x+π/2)=2²cos(2x+π/2+π/2)=2²cos(2x+2*π/2)
y3==2²*-2sin(2x+2*π/2)=2³cos(2x+2*π/2+π/2)=2³cos(2x+3π/2)
......................................................................................................
y45=2^{45}cos(2x+45π/2)
can someone solve this question?
The value of f⁻¹(3) is 1/3. The value of f⁻¹(12) is -14/3. The complete table is:
X 0 1 2
f(x) 2 5 8.
What is function?A function is a mathematical rule that assigns a unique output or value for each input or value in a set. It is a relationship between two sets of numbers, called the domain (input) and range (output), such that each input value is associated with exactly one output value. A function is usually denoted by a letter such as f, and its input is represented by x, while its output is represented by f(x). The concept of a function is a fundamental one in mathematics and has many applications in various fields, including physics, engineering, economics, and more.
Here,
To find the values of f(x), we substitute the given values of x in the function f(x) = 3x + 2:
X 0 1 2
f(x) 2 5 8
To find f⁻¹(3), we first replace f(x) with 3 in the equation f(x) = 3x + 2:
3 = 3x + 2
Solving for x, we get:
x = 1/3
Therefore, f⁻¹(3) = 1/3.
To find f⁻¹(-12), we replace f(x) with -12 in the equation f(x) = 3x + 2:
-12 = 3x + 2
Solving for x, we get:
x = -14/3
Therefore, f⁻¹(-12) = -14/3.
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A sequence is shown as follows:
points at (1,32), (2,8), (3,2), (4,0.5)
Assuming the pattern continues, what is the formula for the nth term?
Answer: an = 128 * (1/4)^n
Step-by-step explanation:
The given sequence is not an arithmetic or geometric sequence, but we can try to find a pattern using algebra. Let's assume that the formula for the nth term is of the form:
an = a * b^n
where a and b are constants to be determined. We can find these constants by using the first two points:
a * b^1 = 32 (when n = 1)
a * b^2 = 8 (when n = 2)
Dividing the second equation by the first, we get:
b^1 = (8/32) / (1/2) = 1/4
Substituting this value of b in the first equation, we get:
a * (1/4)^1 = 32
a = 128
Therefore, the formula for the nth term is:
an = 128 * (1/4)^n
We can check this formula using the other given points:
a2 = 128 * (1/4)^2 = 8
a3 = 128 * (1/4)^3 = 2
a4 = 128 * (1/4)^4 = 0.5
So the formula holds for all the given points.
Let f(x) = 2x2 + 5x -19 and g(x) = x - 1. Perform the function operation and then find the domain.
(f + g)(x)
(Simply your answer.)
Answer:
(f + g)(x) = 2x² + 5x - 19 + x - 1 = 2x² + 6x - 20Domain: all real numbers15. In the figure, ABCD is a trapezoid. Given
that length of BE equals to the length
CE, find the area of triangle ADE.
Triangle ADE has a surface area of 75 cm².
What is the triangular area formula?Triangle area determination. Use the equation area = 1/2 * base * height to determine a triangle's surface area. Decide which side will serve as the triangle's base, then calculate the triangle's height from that base.
Using similarity to determine y's value
AD/BD = AE/BE
y/(a-x) = y/x
yx = y(a-x)
x = a/2
This fact can be used to determine the height of the trapezoid:
h = √(BC² - [(AB-DC)/2]²)
= √(10² - [2²]²)
= 8
Now that we know how long MD is, we can:
As a result of the triangles ADE and BDE's resemblance, we can now determine the value of y:
y/BD = AE/BE
y/(a-x) = y/x
yx = y(a-x)
x = a/2
Substituting x = a/2 and BD = AB - DC = 10 - 6 = 4, we get:
y/4 = AE/(a/2)
y = 2AE/a
Substituting y = 2AE/a in the above equation, we get:
(2AE/a)/4 = AE/(a/2)
AE = (a/2)²/2
We may now apply the triangle's area formula, ADE:
Area of ADE = (1/4) x y x (a+b)
= (1/4) x 2AE/a x (a+b)
= (1/8) x (a²/2) x (a+b)
= (1/16) x a² x (a+b)
Substituting a = 10 and b = 6, we get:
Area of ADE = (1/16) x 10² x (10+6)
= 75 cm².
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calculat the following multiplication
[tex]483 \times 25[/tex]
Answer:
12075
Step-by-step explanation:
Simply multiply both terms together
483 x 25 = 12075
taking a whole number, how do you know if there is a number that you can multiply by itself to get it
If a whole number has a whole number square root, it means that there exists a number that you can multiply by itself to get that number.
Let us understand this statement by taking example, the whole number 9 has a whole number square root, which is 3. This means that 3 multiplied by itself gives 9: 3 x 3 = 9. Similarly, the whole number 16 has a whole number square root, which is 4. This means that 4 multiplied by itself gives 16: 4 x 4 = 16.
However, not all whole numbers have whole number square roots. For example, the whole number 2 does not have a whole number square root, which means that there is no whole number you can multiply by itself to get 2. In this case, we would say that 2 is an "irrational" number, because its square root is not a whole number or a fraction of whole numbers.
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The area of a rectangular window is 3816 cm
If the length of the window is 72 cm, what is its width
Answer: The width of the rectangular window is 53 cm.
Step-by-step explanation:
We know that the area of a rectangle is given by the formula:
Area = Length x Width
Substituting the given values, we have:
3816 cm² = 72 cm x Width
To solve for the width, we can divide both sides by 72 cm:
Width = 3816 cm² ÷ 72 cm
Width = 53 cm
Therefore, the width of the rectangular window is 53 cm.
The figure shows an angle with a measure of 52 degrees.
A. Find the complement of the angle shown.
B. Find the supplement of the angle shown.
Show all your work.
a. The cοmplement οf the given angle is 38 degrees.
b. The supplement οf the given angle is 128 degrees
What is cοmplementary and supplementary angles?Twο angles are said tο be cοmplementary if their measurements sum up tο 90 degrees. They are, in οther wοrds, angles that "cοmplete" οne anοther tο create a right angle. As an illustratiοn, if οne angle is 30 degrees, its cοunterpart is 60 degrees.
Twο angles are said tο be supplementary if their sums equal 180 degrees. They are, in οther wοrds, angles that "cοmplete" οne anοther tο create a straight line. If οne angle is 120 degrees, fοr instance, its cοmplement is 60 degrees.
Given the measure οf the angle is 52 degrees.
The cοmplement οf the angle is, when it is added with a angle and the result is 90.
Thus,
90 - 52 = 38
The supplement οf an angle is when the result οf additiοn is 180 degrees.
Thus,
180 - 52 = 128
Hence, the complement of the given angle is 38 degrees. b. The supplement of the given angle is 128 degrees
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7.4y-2.9y
pls lmk....
4.5y
subtract 2.9y from 7.4y, and you get 4.5y
A person invests 5500 dollars in a bank. The bank pays 4.5% interest compounded
annually. To the nearest tenth of a year, how long must the person leave the money
in the bank until it reaches 6700 dollars?
We can use the formula for compound interest to solve this problem:
A = P(1 + r/n)^(nt)
where:
A = the final amount (6700 dollars)
P = the principal amount (5500 dollars)
r = the annual interest rate (4.5% or 0.045)
n = the number of times the interest is compounded per year (once annually)
t = the time period (in years) for which the money is invested
Substituting these values in the formula, we get:
6700 = 5500(1 + 0.045/1)^(1t)
Dividing both sides by 5500, we get:
1.21818181818 = 1.045^t
Taking the logarithm (base 10) of both sides, we get:
t = log(1.21818181818) / log(1.045)
Solving this equation using a calculator, we get:
t ≈ 4.4
Therefore, the person must leave the money in the bank for approximately 4.4 years (to the nearest tenth of a year) until it reaches 6700 dollars.
Bria is a customer who would like to display her collection of soap carvings on top of her bookcase. The collection needs an area of 300 square inches. What should b equal for the top of the bookcase to have the correct area? Round your answer to the nearest tenth of an inch. I need help
D: Please !!!!
Answer:
We can use the formula for the area of a rectangle to solve this problem. Let's assume that the length of the top of the bookcase is L and the width is b. Then, we can write:
L × b = 300
Solving for b, we get:
b = 300 / L
Since we don't know the length L, we cannot find the exact value of b. However, we can use the given information to make an estimate. Let's say that the length of the bookcase is 60 inches. Then, we have:
b = 300 / 60 = 5
So, if the length of the bookcase is 60 inches, the width needs to be at least 5 inches to accommodate Bria's soap carving collection. However, if the length is different, the required width will also be different.
Interpret the confidence interval. Select the correct choice below and fill in the answer boxes to complete your choice (Round to one decimal place as needed.) I O A. We can be 95% confident that the mean duration of imprisonment, p, of all political prisoners with chronic PTSD is somewhere between 19 4 months and 46.1 months. O B. There is a 95% chance the mean duration of imprisonment, p, of all political prisoners with chronic PTSD will equal the mean of the interval from 19.4 months to 46.1 months
We can be 95% confident that the mean duration of imprisonment, p, of all political prisoners with chronic PTSD is somewhere between 19.4 months and 46.1 months.
Therefore the answer is A.
A confidence interval is a range of values that is likely to contain the true population parameter (in this case, the mean duration of imprisonment for political prisoners with chronic PTSD). The confidence level (in this case, 95%) indicates the percentage of times that the interval will contain the true population parameter in repeated sampling.
Option A correctly interprets the confidence interval by stating that we can be 95% confident that the true mean duration of imprisonment for political prisoners with chronic PTSD falls between 19.4 months and 46.1 months. This means that if we were to take many random samples of political prisoners with chronic PTSD and calculate the mean duration of imprisonment for each sample, 95% of the resulting confidence intervals would contain the true population mean.
Option B is incorrect because a confidence interval does not give the probability of the population parameter being in a particular range. It only gives the probability that the interval will contain the true population parameter if the sampling and estimation process is repeated many times.
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Write a sentence of interpretation for each point given.
When coffee beans sell for p dollars per pound, producers supply q million pounds. (5, 9); (15, 40)
When coffee beans sell for $5 per pound, producers supply 9 million pounds. This indicates that at a higher price, producers are willing to supply a larger quantity of coffee beans.
This means that at a lower price, producers will supply a smaller quantity of coffee beans. Conversely, when the price of coffee beans increases to $15 per pound, producers supply 40 million pounds.
The relationship between price and quantity supplied is a fundamental concept in economics. When prices are lower, producers may not have enough incentive to produce and supply goods. On the other hand, when prices are higher, producers may have more incentive to produce and increase their supply. This is often referred to as the law of supply.
Understanding this relationship is important for businesses and policymakers to make informed decisions about pricing and production. By analyzing market trends and the behavior of producers, they can adjust prices to maintain a balance between supply and demand. For example, if prices are too high, it may lead to a surplus of goods that cannot be sold, while prices that are too low may result in shortages or supply constraints.
In conclusion, the relationship between price and the supply of coffee beans reflects a broader economic principle that is essential for understanding how markets work. By examining the supply curve, we can gain insights into how producers respond to changes in price, and use this information to make informed decisions about pricing and production.
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Find the nth term of this quadratic sequence 6, 16, 32, 54, ...
Answer:
3n squared+n+2
Answer:
the nth term of the sequence is 2n² + 4T
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Step-by-step explanation:
he sequence represents a quadratic function, the nth term of the sequenceis 2n² + 4
The nth term of a quadratic sequence is :an² + bn + c c = zeroth term ; a = second difference ÷ 2
From the sequence :First difference = 6, 10, 14, 18Second difference = 4, 4, 4
First difference between terms in position 1 and 0 :6 - 4 = 2
Zeroth term = First term in sequence - 2 = 6 - 2 = 4a = 4/2 = 2
Plugging the values into the equation :2n² + bn + 4 Using the 2nd term :n = 22(2)² + 2b + 4 = 128 + 2b + 4 = 12 2b = 12 - 12 2b = 0b = 0
Hence, the nth term of the sequence is 2n² + 4
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A special bag of Starburst candies contains 20 strawberry, 20 cherry, and 10 orange. We will select 35 pieces of candy at random from the bag. Let X = the number of strawberry candies that will be selected. a. The random variable X has a hypergeometric distribution with parameters M= , and N= n= b. What values for X are possible? c. Find PCX > 18) d. Find PX = 3) e. Determine E[X] or the expected number of strawberry candies to be selected. f. Determine Var[X]. The Binomial Distribution input parameters output The mean is The number of trials n is: The success probability p is: Binomial Probability Histogram dev. is: 1 Enter number of trials Must be a positive integer. Finding Probabilities: 0.9 0.8 Input value x fx(x) or P(X = x) Fx(x) or P(X 3x) 0.7 0.6 Input value x fx(x) or P(X = x) Fx(x) or P(X sx) 0.5 0.4 Input value x fx(x) or PCX = x) Fx(x) or P(X sx) 0.3 0.2 0.1 Input value x fx(x) or PCX = x) Fx(x) or P(X sx) 0 0 0 0 0 0 0 0 0 0 0
It involves selecting 35 candies from a bag containing 20 strawberry, 20 cherry, and 10 orange Starburst candies. X is the number of strawberry candies selected. X has a hypergeometric distribution, with possible values from 0 to 20. P(X > 18) is 0.0125, and probability mass function P(X = 3) is 0.0783. The expected value of X is 14, and the variance of X is approximately 5.67.
X has a hypergeometric distribution with parameters M=40 (20+20), N=50 (20+20+10), and n=35.
X can take on values from 0 to 20, since there are only 20 strawberry candies in the bag.
Using the cumulative distribution function for the hypergeometric distribution, we have P(X > 18) = 0.0125.
Using the probability mass function for the hypergeometric distribution, we have P(X = 3) = 0.0783.
The expected value of X is E[X] = np = 35(20/50) = 14.
The variance of X is Var[X] = np(1-p)(N-n)/(N-1) = (35)(20/50)(30/49)(40/49) ≈ 5.67.
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report error suppose and are isosceles triangles. also suppose that and . what is the sum of all possible lengths for ?
The possible values of TP in isosceles triangle are between 5.5 and infinity.
Let TP = x. Then we have:
TI = TP = x (isosceles triangle)
PI = TP - PI = x - 7 (isosceles triangle)
PO = TP + OP = x + 11 (triangle inequality)
Using the fact that the sum of any two sides of a triangle must be greater than the third side, we have:
x + x > 11 --> x > 5.5
x + 11 > x --> 11 > 0
x + 7 > 5 --> x > -2
Therefore, the possible values of x are between 5.5 and infinity. The sum of all possible values of x is infinity since there is no upper bound on the possible values.
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_____The given question is incomplete, the complete question is given below:
Suppose triangle TIP and triangle TOP are isosceles triangles. Also suppose that TI=5, PI=7, and PO=11. What is the sum of all possible lengths for TP?
Which set of numbers could represent the lengths of the sides of a right triangle?
Responses
A: 15, 18, 21
B: 9, 11, 14
C: 8, 9, 10
D: 7, 24, 25
Answer:
C: 8, 9, 10
Step-by-step explanation:
find the conditional probability that x is greater than 2 6 given that x is less than or equal to 1 2 .
According to bayes therom the conditional probability thst x is greater than 26 is zero.
Bayes' theorem may be used to compute the conditional probability that x is greater than 26 if x is less than or equal to 12.
P(x > 26 | x 12) = P(x > 26 plus x 12) / P(x > 26 plus x 12) (x 12).
Because x cannot be more than 26 and less than or equal to 12, the numerator of the preceding formula is zero. As a consequence, the conditional probability is equal to zero:
P(x > 26 | x ≤ 12) = 0
This means that knowing x is less than or equal to 12 does not inform us if x is more than or less than 26.
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URGENT. PLS HELP ME FILL IN THE CHART. Simplify the given polynomials. Then, classify each polynomial by its degree and number of terms.
The polynomial's value is Degree: 2 (because x has a maximum power of 2), Degree: 2 (since x has a maximum power of 2), and Degree: 1 (since x has a maximum power of 1).
What qualifies as a polynomial?A polynomial is an equation made up of exponents, constants, and variables that is combined using mathematical operations including addition, subtraction, multiplication, and division (No division operation by a variable).
Expanding the provided expression, we obtain: Polynomial 1
6x2 + 2x - 24x - 8 = (x-4)(6x+2) = 6x2 - 22x - 8
When we condense the phrase, we get:
3
(3x² - 11x - 4)
Level: 2
Amount of terms: 1
2nd polynomial:
(7x² + 3x) Degree: (21x2 - 12) = 7x2 + 3x - (21x2 + 12) = -14x2 + 3x + 12 2 (because the maximum power of x is 2)
Polynomial 3: 2(-10x2 + 18x + 13) + 4(5x2 + 9x + 7) = 20x2 + 36x + 28 - 20x2 + 36x + 26 = 72x + 54
Grade: 1
There is one term.
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2.4x − 1.5y = 0.3
1.6x + 0.5y = −1.3
The system of equations above is graphed in the xy -plane. What is the x -coordinate of the intersection point (x , y) of the system?
The given system of equations above is graphed in the xy -plane, then the x-coordinate of the intersection point (x, y) is -1.0625.
What is the system of equations?
A system of equations is a collection of one or more equations that are considered together. The system can consist of linear or nonlinear equations and may have one or more variables. The solution to a system of equations is the set of values that satisfy all of the equations in the system simultaneously.
There are different methods to find the solution of a system of two equations in two variables, but one common one is to use elimination or substitution. Here, we will use substitution.
From the first equation, we can isolate x in terms of y by adding 1.5y to both sides and dividing by 2.4:
2.4x - 1.5y = 0.3
2.4x = 1.5y + 0.3
x = (1.5/2.4)y + 0.3/2.4
x = 0.625y + 0.125
Now we substitute this expression for x into the second equation and solve for y:
1.6x + 0.5y = −1.3
1.6(0.625y + 0.125) + 0.5y = −1.3
1.0y = −1.8
y = −1.8/1.0
y = −1.8
Finally, we substitute this value of y back into either equation to find the corresponding x-coordinate:
x = 0.625y + 0.125
x = 0.625(-1.8) + 0.125
x = −1.0625
Therefore, the x-coordinate of the intersection point (x, y) is -1.0625.
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to calculate the workload of a resource that serves different flow unit types, one must know which of the following?
The workload of the resource is 20.5 units.
To calculate the workload of a resource that serves different flow unit types, one must know the amount of flow units, the processing time for each flow unit, and the number of resources available. This is best calculated using Little's Law, which states that the average number of flow units in a system is equal to the average rate of flow units multiplied by the average time they spend in the system.
For example, if a resource is serving 3 flow unit types, A, B and C, with 10, 8 and 5 units respectively, and a processing time of 2 minutes, 1 minute and 3 minutes respectively, with 2 resources available, the workload can be calculated as follows:
Workload = (10*2 + 8*1 + 5*3) / 2
= 41 / 2
= 20.5 units
Therefore, the workload of the resource is 20.5 units.
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Complete question
What are the flow unit types that the resource is serving?
In an examination,x pupils take the history paper and 3x take the mathematics paper. A. illustrate the data on a venn diagram indicating the number of pupils I'm each region.
B. if the number of pupils taken the examination is 46, find the value of x
If we round up, we get x = 12, which means that 12 students took history and 36 students took mathematics.
What is venn diagram?A Venn diagram is a graphical representation of sets, often used to show relationships between different sets of data. It consists of one or more circles, where each circle represents a set. The circles are usually overlapping to show the relationships between the sets. The region where the circles overlap represents the elements that belong to both sets. The non-overlapping parts of each circle represent the elements that belong to only one of the sets.
Here,
A. To illustrate the data on a Venn diagram, we need to draw two overlapping circles, one for history and one for mathematics. We can label the regions as follows:
The region where the circles overlap represents the students who took both history and mathematics.
The region outside both circles represents the students who did not take either history or mathematics.
The region within the history circle but outside the mathematics circle represents the students who took history but not mathematics.
The region within the mathematics circle but outside the history circle represents the students who took mathematics but not history.
In this diagram, let's assume that x students took history and 3x students took mathematics. Then the total number of students who took the examination is x + 3x = 4x. We can label the regions on the diagram accordingly:
The region where the circles overlap represents the students who took both history and mathematics. Since there are 3x students who took mathematics, and all of them are included in the overlap region, the number of students who took both is 3x.
The region outside both circles represents the students who did not take either history or mathematics. Since there are 46 students in total, and 4x of them took the examination, the number of students who did not take either is 46 - 4x.
The region within the history circle but outside the mathematics circle represents the students who took history but not mathematics. Since x students took history, and 3x took mathematics, the number of students who took history but not mathematics is x - 3x = -2x. However, since we cannot have a negative number of students, we can assume that this region is empty.
The region within the mathematics circle but outside the history circle represents the students who took mathematics but not history. Since there are 3x students who took mathematics, and some of them also took history, the number of students who took mathematics but not history is 3x - 3x = 0. Therefore, this region is also empty.
B. We know that the total number of students who took the examination is 46. Therefore, we have:
x + 3x = 46
4x = 46
x = 11.5
However, since x represents the number of students who took history, it must be a whole number. Therefore, we can round x up or down to the nearest whole number. If we round down, we get x = 11, which means that 11 students took history and 33 students took mathematics.
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