Answer:
4(3) - 7 = 4(3 - 1) - 3
12 - 7 = 4(2) - 3
5 = 8 - 3
= 5
They are equivalent because when they are both simplified they have the same answer 5
Solve
9x^2 + 3x = 20
Answer:
20 barriles diarios y en los trajes y que es el que
Explain how to solve 5x^2-3x=25 by completing the square. What are the solutions?
Answer:
x1 = √(509) /100 + 3/10
x2 = -√(509) /100 + 3/10
Step-by-step explanation:
We do completing the square as follows:
1. Put all terms with variable on one side and the constants on the other side.
5x^2 - 3x = 25
2. Factor out the coefficient of the x^2 term.
5(x^2 - 3x/5) = 25
3. Inside the parentheses, we add a number that would complete the square and also add this to the other side of the equation. In this case we add 9/100 and on the other side we add 9/20.
5(x^2 - 3x/5 + 9/100) = 25 + 9/20
4. We simplify as follows:
5(x^2 - 3x/5 + 9/100) = 25 + 9/20
5(x - 3/10)^2 = 509/20
(x - 3/10)^2 = 509/100
x1 = √(509) /100 + 3/10
x2 = -√(509) /100 + 3/10
Which table represents an exponential function?
X
0
1
2
3
4
у
5
13
21
29
37
Х
0
1
2
3
4
у
0
22
44
66
88
X
0
1
2
3
4
у
2
4
8
16
32
0
1
2
3
4
у
5
6
7
8
9
The exponential function from the table is given by y = 2(2)ˣ
What is an exponential function?
An exponential function is in the form:
y = abˣ
Where a is the initial value of y and b is the multiplication factor.
At x = 0, y = 2, hence a = 2
At x = 1, y = 4, hence:
4 = 2b¹
b = 2
The exponential function is given by:
y = 2(2)ˣ
The exponential function from the table is given by y = 2(2)ˣ
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PLEASE HELP, will get brainliest
Answer:
The answer is the first, hope this helps
Step-by-step explanation:
There are 15 pieces of fruit in the fruit in a bowl and 6 of them are apples. What percentage of the pieces of the fruit in the bowl are apples
0.06%
0.4
6%
40%
please help me with this question
could you help me pleas
Write the equation of a line that has m=2 and passes through (-5, -6).
Answer:
y=2x+4
Step-by-step explanation:
y-(-6)=2(x-(-5))
y+6=2(x+5)
y+6=2x+10
y=2x+10-6
y=2x+4
Please help and show work
Answer:
0.75x
Step-by-step explanation:
Theres not much to show. It says that you buy x bags of chips for $0.75. So how I got 0.75x is because you have to multiply 0.75 x times to get your answer,but here they just want you to write an equation with out solving it.
Mrs. Hilt has 6 boxes of markers. Each box has 19 markers in it. If she sold each maker for $0.75, how much money would Mrs. Hilt earn?
Answer:
85.50
Step-by-step explanation:
6 times 19 = 114 markers then times .75= 85.50
please help asap !!!!
pls help have a nice day
Answer:
I THINK the first and second choice, because it said the last two digits are between the numbers 0-9, them two are the only ones that end with them.
Step-by-step explanation:
You have a nice day to!!
Given a and b are numbers, and a + b = 180, which
statements also must be true?
a = 180 - 6
a - 180 = b
360 = 2a + 2b
a = 90 and b = 90
Multiple choice solution of the inequality
How many parts can all 6 cutting machines cut in 1 minute?
Answer:
is there an image where i can see?
Step-by-step explanation:
Which of the following shapes is a prism? Select All that apply.
A. Shape 1: Circle
B. Shape 2: Cylinder
CShape 3: Rectangular Box
D. Shape 4: Cube
E. Shape 5: Pyramid
F. Shape 6: Cone
Answer:
C D
Step-by-step explanation:
Scale factor from A to B is 4:5.
Help
Answer:
24
Step-by-step explanation:
4/5 = x/30, then (4×30)/5 =24
The missing value is 24.
We have,
From the figure,
We can write an expression as:
4:5 = x : 30
This can be written as,
4/5 = x/30
Now,
Cross multiply.
x = 4 x 30 / 5
x = 4 x 6
x = 24
Thus,
The missing value is 24.
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Help! I’ll reward brainest its pretty easy
How to covert feet into miles
There are 12 cupcakes. 3⁄4 of them have pink icing.
1⁄3 of the cupcakes with pink icing have sprinkles. How many of the cupcakes have pink icing and sprinkles?
Answer:
3 of them should have sprinkles.
Step-by-step explanation:
if 25 worker need 3 days to build a house how long will 10 worker need
Answer:
3 x 10 = 30 man-days per house
Answer:
7.5 days
Step-by-step explanation:
Help me please help help
Answer:
Step-by-step explanation:
Greater than (<)
The probability of an event is
9
50
Describe the likelihood of the event.
o Certain
0 Likely
O Equally likely to happen or not happen
• Unlikely
o Impossible
Please help
Answer:
50
Probable
Equally likely to happen or not happen
Step-by-step explanation:
Solve 4ax + 5ax = 6 ax + 9 for x. Assume a = 0.
Step-by-step explanation:
4ax + 5ax = 6 ax + 9
If a=0
Then
0+0≠0+9
so x is undefined
If the value of 'a' is zero. Then the solution of the equation will be not defined.
What is the solution to the equation?The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
The equation is given below.
4ax + 5ax = 6ax + 9
Simplify the equation for x, then the equation is given as,
4ax + 5ax = 6ax + 9
4ax + 5ax - 6ax = 9
3ax = 9
x = 3 / a
If the value of 'a' is zero. Then the solution of the equation will be
x = 3 / 0
x = not defined
If the value of 'a' is zero. Then the solution of the equation will be not defined.
More about the solution of the equation link is given below.
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together, ben and kyle have 43 fishing lures. Kyle,(K), has 15 more lures than ben, (B). which statements are correct for this situation
Answer:
k + b = 43
15 + b = 43
b = 28
PLEASE HELP ILL MARK BRAINLY FOR CORRECT ANSWER
Answer:
120 minutes
Step-by-step explanation:
12 x 10 = 120
10 x 12 = 120
15 x 8 = 120
You will put the muffins in 10 times and you will put the cookies in 12 times then you will put the scones in 8 times. If you have different numbers, you can first start out with one number and times all of the numbers by that one number. For example I picked 5 to start out with:
12 x 5 = 60 minutes 10 x 5 = 50 minutes 15 x 5 = 75 minutes.
Then I did 12 x 6 = 72 minutes, 10 x 6 = 60 minutes, 15 x 6 = 90 minutes
Since I still don't have the numbers to add up to the same answer, I went to timing them by 7:
12 x 7 = 84 minutes, 10 x 7 = 70 minutes, 15 x 7 = 105 minutes
They are still not the same answer so lets try 8:
12 x 8 = 96 minutes, 10 x 8 = 80 minutes, 15 x 8 = 120 minutes.
Since I don't want to go farther than 120 minutes, I will keep trying different numbers for the other ones besides 15.
12 x 9 = 108 minutes, 10 x 9 = 90 minutes
12 x 10 = 120 minutes, 10 x 10 = 100 minutes
Now we will focus on getting 10 to 120 because we got 12 to 120.
10 x 11 = 110 minutes
10 x 12 = 120 minutes
To sum all of this, it took 8 trips to get 15 minutes to 120 minutes, 10 trips to get 12 minutes to 120 minutes, and 12 trips to get 10 minutes to 120 minutes.
One more way to think about this is:
10, 12, and 15 can go into 120 evenly.
[tex]12\sqrt{120} = 10[/tex]
[tex]10\sqrt{120} = 12\\15\sqrt{120} = 8[/tex]
George Smith own's George's Joint, a gas station and convenience store. George is trying to get a better understanding of his business and wants to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons of gasoline sold follows a normal distribution with a population standard deviation of 2.3 gallons. From his records, he randomly selects 60 sales and find the mean number of gallons sold is 8.6. What is the point estimate of the population mean
Answer:
The point estimate of the population mean is of 8.6 gallons sold.
Step-by-step explanation:
Point estimate for the population mean:
From a large sample, the point estimate for the population mean is the sample mean.
In this question:
The sample mean number of gallons sold is 8.6. This means that the point estimate of the population mean is of 8.6 gallons sold.
Find the area of the rectangle below. Show your work
Answer:
32
Step-by-step explanation:
you can multiply
4 up 8 across so 4 x 8 = 32
Answer:
Area= 32 units
Step-by-step explanation:
A=Bh or Area=Base times height. the base is 8 and the height is 4. 8 times 4 is equal to 32.
Evaluate the following expressions: (2×3)2-52
two numbers are in the ratio 3 is to 5 what is the ratio between the squares