Answer:
0.016
Step-by-step explanation:
Answer:
0.016
Step-by-step explanation:
ques
mid vallue frequency
5. 5
10. 20
15. 10
20. 55
25. 22
30. 29
find mode from the following
Answer:
the mode is 20
it has the highest frequency
if 6 is added to three quarters of a certain number, the result is 42 . Find the original number
Answer:
Step-by-step explanation
Hello!
3x/4 + 6=42
3x/4=42-6 = 36
3x = 36*4
3x = 144
x= 144/3 =48
3/4 of 48 = (48*3) / 4 =36
36+6=42
the original number is 48
Answer:
x=48
Step-by-step explanation:
3x/4+6=42
3x/4=42-6
3x/4=36
cross multiply
3x/3=144/3
x=48
y = -4/3x − 1
y = 1/3x + 4
Answer:
x = -3, y =3
Step-by-step explanation:
y = -4/3x - 1
y = 1/3x + 4 -------> 4y = 4/3x + 16
Adding the first equation and the new second equation together:
5y = 15 ------> y = 3
Plug y = 3 into one of the original equations:
3 = 1/3x + 4
-1 = 1/3x
x = -3
oscar is buying soil for his plants. he needs to fill one pot with 8 cups of soil and another pot with 3 gallons of soil. if the price of soil is $2.50 per quart, how much, in dollars, will he pay in all?
PLEASE HELP
Answer:
Total dollars = 35 dollars.
Step-by-step explanation:
Below is the given values:
Number of cups = 8 cups
Number of gallons = 3 gallons
Price of soil per quart = $2.50
Now convert the cups and gallons into quart.
Total quart = 8 cups + 3 gallons
Total quart = 8 / 4 quart + 3 x 4 quarts
Total quart = 2 quart + 12 quart
Total quart = 14 quart
Total dollars amount = $2.50 per quart x 14 quart
Total dollars = 35 dollars.
How to determine the percentage of total expenses which is allocated to salary ? Please help
Answer:
(s/t)(100%)
Step-by-step explanation:
Represent salaries by s and total expenses by t. Then the fraction of total expenses allocated to salary is
s
------
t
and so the percentage of total expenses which is allocated to salary is
(s/t)(100%)
Here,
we have to determine the percentage of total expenses which is allocated to salary.
Let,
The salary is denoted by (S)The total expenses value by (T)The percentage of total expenses allocated to salary is,
[tex]\bold{Percentage=\dfrac{salary}{total~expenses}×100 }[/tex] [tex]\sf{Percentage=\dfrac{S}{T}×100 }[/tex]F=(2xy +z³)i + x³j + 3xz²k find a scalar potential and work done in moving an object in the field from (1,-2,1) to (3,1,4)
Step-by-step explanation:
Given:
[tex]\textbf{F} = (2xy + z^3)\hat{\textbf{i}} + x^3\hat{\textbf{j}} + 3xz^2\hat{\textbf{k}}[/tex]
This field will have a scalar potential [tex]\varphi[/tex] if it satisfies the condition [tex]\nabla \times \textbf{F}=0[/tex]. While the first x- and y- components of [tex]\nabla \times \textbf{F}[/tex] are satisfied, the z-component doesn't.
[tex](\nabla \times \textbf{F})_z = \left(\dfrac{\partial F_y}{\partial x} - \dfrac{\partial F_x}{\partial y} \right)[/tex]
[tex]\:\:\:\:\:\:\:\:\: = 3x^2 - 2x \ne 0[/tex]
Therefore the field is nonconservative so it has no scalar potential. We can still calculate the work done by defining the position vector [tex]\vec{\textbf{r}}[/tex] as
[tex]\vec{\textbf{r}} = x \hat{\textbf{i}} + y \hat{\textbf{j}} + z \hat{\textbf{k}}[/tex]
and its differential is
[tex]\textbf{d} \vec{\textbf{r}} = dx \hat{\textbf{i}} + dy \hat{\textbf{j}} + dz \hat{\textbf{k}}[/tex]
The work done then is given by
[tex]\displaystyle \oint_c \vec{\textbf{F}} • \textbf{d} \vec{\textbf{r}} = \int ((2xy + z^3)\hat{\textbf{i}} + x^3\hat{\textbf{j}} + 3xz^2\hat{\textbf{k}}) • (dx \hat{\textbf{i}} + dy \hat{\textbf{j}} + dz \hat{\textbf{k}})[/tex]
[tex]\displaystyle = (x^2y + xz^3) + x^3y + xz^3|_{(1, -2, 1)}^{(3, 1, 4)}[/tex]
[tex]= 422[/tex]
es urgente
Resuelve cada ecuación. Si tu respuesta es correcta podrás completar con ella la información que esta abajo y aprender también sobre la naturaleza
X - ( x – 10 ) + 50 + (20 - x ) = – 50
Answer:
I hope I've helped /espero haberte ayudado
sushil was thinking of a number. sushil halves it and gets an answer of 22.2, what was the original number?
Answer:
44.4Step-by-step explanation:
Let,
The number thought by Sushil = x
When halved = x/2
We know that,
When the number is halved then it becomes 22.2
Therefore,
The original number is,
[tex] = > \frac{x}{2} = 22.2[/tex]
=> x = 22.2 × 2
=> x = 44.4 (Ans)
5v– 1/2 =4+ 3/2 v
How does one person solve this if the like terms are on opposite sides?
Answer:
Step-by-step explanation:
Given
[tex]5v - 1/2 = 4 + 3/2v[/tex]
Required
Solve
We have:
[tex]5v - 1/2 = 4 + 3/2v\\[/tex]
Collect like terms
[tex]5v - 3/2v = 4 + 1/2[/tex]
Express fractions as decimals
[tex]5v - 1.5v = 4 + 0.5[/tex]
[tex]3.5v = 4.5[/tex]
Make v the subject
[tex]v= \frac{4.5}{3.5}[/tex]
Divide by .5
[tex]v= \frac{9}{7}[/tex]
what is the solution for 3(x+3)=12
Answer: 3×4=12
Step-by-step explanation:
Brackets: X=1 , so 1+3=4 and 3+4=12
The height of a triangle is 4 feet more than 3 times the base. If the area is 112 ft find the base and height of the triangle
Answer:
[tex]base = 8 ft\\height =28 ft\\[/tex]
Step-by-step explanation:
let base be x ft. then the height is 3x+4
[tex]Area=\frac{1}{2} \times x \times (3x+4)=112\\3x^{2} +4x=224\\3x^{2} +4x-224=0\\x=8, x=-9.33 (no sol. as length can not be negative)\\ x=8\\base = 8 ft\\height =3(8)+4=28 ft\\[/tex]
Answer:
base = 8 , height = 28
Step-by-step explanation:
Let base be = b
Given:
height is 3times base = 3b
Also 4 feet more than 3 times base = 3b + 4
Area = 112 square feet
[tex]area = \frac{1}{2} \times base \times height\\\\112 = \frac{1}{2} \times b \times (3b+ 4)\\\\224 = b(3b+4)\\\\224 = 3b^2 + 4b\\\\3b^2 + 4b - 224 = 0\\\\[/tex]
The quadratic equation with a = 3 , x = 4 , c = -224
Therefore ,
[tex]b = \frac{-x \pm \sqrt{x^2 - 4ac}}{2a}\\\\[/tex]
[tex]b= \frac{-4 \pm \sqrt{4^2 - (4 \times 3 \imes -224)}}{2 \times 3}\\\\b= \frac{-4 \pm \sqrt{16 + 2688}}{6}\\\\b= \frac{-4 \pm \sqrt{2704}}{6}\\\\b= \frac{-4 \pm52 }{6}\\\\b = \frac{-4 + 52}{6} , \ b = \frac{-4 -52}{6}\\\\b = \frac{48}{6} , \ b = -\frac{56}{6}[/tex]
Since base can't be negative base = 8 ft
Therefore , height = 3b + 4 = 3(8) + 4 = 24 + 4 = 28
help i’ll give brainliest
Answer:
5
Step-by-step explanation:
Y intercept = y value of point where the line passes the y axis
The line passes the y axis at (0,5) and the y value of that point is 5
Therefore y intercept = 5
Answer:
5........................................................................................
Which statement best explains the relationship
between lines AB and CD?
a. They are parallel because their slopes are equal.
b. They are parallel because their slopes are negative
reciprocals.
c. They are not parallel because their slopes are not
equal.
d. They are not parallel because their slopes are
negative reciprocals.
Answer:
A) they are parallel because their slopes are equal.
Step-by-step explanation:
Parallel means that their slopes are equal
If they were negative reciprocals they would be perpendicular.
show that d^2y/dx^2=-2x/y^5, if x^3 + y^3=1
Answer:
y³ + x³ = 1
First, differentiate the first time, term by term:
[tex]{3y^{2}.\frac{dy}{dx} + 3x^{2}} = 0 \\\\{3y^{2}.\frac{dy}{dx} = -3x^{2}} \\\\\frac{dy}{dx} = \frac{-3x^{2}}{3y^{2}} \\\\\frac{dy}{dx} = \frac{-x^{2}}{y^{2}}[/tex]
↑ we'll substitute this later (4th step onwards)
Differentiate the second time:
[tex]3y^{2}.\frac{dy}{dx} + 3x^{2} = 0 \\\\3y^{2}.\frac{d^{2} y}{dx^{2}} + 6y(\frac{dy}{dx})^{2} + 6x = 0 \\\\3y^{2}.\frac{d^{2} y}{dx^{2}} + 6y(\frac{dy}{dx})^{2} = - 6x \\\\3y^{2}.\frac{d^{2} y}{dx^{2}} + 6y(\frac{-x^{2} }{y^{2} })^{2} = - 6x \\\\3y^{2}.\frac{d^{2} y}{dx^{2}} + 6y(\frac{x^{4} }{y^{4} }) = - 6x \\\\3y^{2}.\frac{d^{2} y}{dx^{2}} + \frac{6x^{4} }{y^{3} } = - 6x \\\\3y^{2}.\frac{d^{2} y}{dx^{2}} = - 6x - \frac{6x^{4} }{y^{3} } \\\\[/tex]
[tex]3y^{2}.\frac{d^{2} y}{dx^{2}} = - \frac{- 6xy^{3} - 6x^{4} }{y^{3}} \\\\\frac{d^{2} y}{dx^{2}} = - \frac{- 6xy^{3} - 6x^{4} }{3y^{2}. y^{3}} \\\\\frac{d^{2} y}{dx^{2}} = - \frac{- 2xy^{3} - 2x^{4} }{y^{5}} \\\\\frac{d^{2} y}{dx^{2}} = - \frac{-2x (y^{3} + x^{3})}{y^{5}} \\\\\frac{d^{2} y}{dx^{2}} = - \frac{-2x (1)}{y^{5}} \\\\\frac{d^{2} y}{dx^{2}} = - \frac{-2x}{y^{5}}[/tex]
3(t+4)=9 t=?
-(c-6)=0 c=?
-10(s+4)=-122 s=?
Answer:
t = -1
c = 6
s = 8.2 or 8 1/5 (same thing just different notation)
Step-by-step explanation:
3(t+4) = 9
3t + 12 = 9
3t = -3
t = -1
-(c-6) = 0
-c + 6 = 0
-c = -6
c = 6
-10(s+4) = -122
-10s - 40 = -122
-10s = -82
10s = 82
s = 82/10 = 8.2 or 8 2/10 or 8 1/5
what is 186.4 ounces oz of water in millliiters (mL)
Answer:
The answer is 5284.35 using the conversion
Answer:
5284.4
Explanation:
Tbh if you have a conversion table then see the conversion for what 1 oz is equal to in mL and do the math like that… •_•
Hope this helps, have a good day!
The girls in Lana’s troop set a goal to sell 1,000 boxes of cookies this year. There are 13 girls in the troop. At least how many boxes of cookies should each girl sell to reach their goal?
Answer:
77 boxes
Step-by-step explanation:
Take the total number of boxes to be sold and divide by the number of girls in the troop
1000/13
76.92307692
Round up
77
Each girl must sell 77
77*13 =1001
PLEASE HELP ME
Challenge In a company, 85 % of the workers are woman . If 585 people work for the company who aren't woman , how many workers are there in all?
there are ___ workers in all
Answer:
3900
Step-by-step explanation:
let x= number of workers
we know that .15 (or 1-.85) of the people are not women
so
.15x=585
585/.15=x
3900=x
What is the scale factor of AXYZ to AUVW?
Yes
Answer:
C
Step-by-step explanation:
60÷6=10, 90÷9=9, 75÷7.5=10, It divided by 10 so it's 1/10
The scale factor of dilation of the triangle is k = 1/10
What is Dilation?Resizing an item uses a transition called Dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. Dilation transformations ensure that the shape will stay the same and that corresponding angles will be congruent
The result of dilation is that the shapes and boundaries of objects in the input image are expanded or thickened. It is often used in conjunction with other morphological operations such as erosion, opening, and closing to manipulate and enhance images.
Given data ,
Let the first triangle be ΔXYZ
Let the second triangle be ΔUVW
Now , the measure of sides of ΔXYZ = { 60 , 75 , 90 }
And , the measure of sides of ΔUVW = { 6 , 7.5 , 9 }
So , the scale factor of dilation is given by k
where k = measure of side ΔUVW / measure of side ΔXYZ
k = 6 / 60
k = 1/10
Hence , the dilation factor is k = 1/10
To learn more about dilation click :
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You are having a get-together and are expecting 30 guests. You plan on serving Chocolate Chip Cookies. Use your knowledge of fractions to re-write the recipe for Chocolate Chip Cookies. The recipe card states that it makes 60 cookies. What will need to be done in order to make 30 cookies?
Show your work neatly. List all steps taken as you recalculate each ingredient and then re-write the recipe card.
Discuss what you learned about fractions from this activity.
Did you find some measurements easier to convert than others? Why do you think this is so?
Answer:
Chocolate Chip Cookies:
2
1
/
2
cups flour
3
/
4
cup sugar
1
tsp. baking soda
1
tsp. vanilla
3
/
4
teaspoon salt
2
eggs
1
cup butter
3
/
4
pound Chocolate Chips
Fractions:
A fraction is a numerical quantity that represents a part of a whole. A fraction can be recognized by a horizontal line that is there between the two numbers. The number above the horizontal line is called the numerator and the number below the horizontal line is called the denominator.
A fraction that is less than 1 is called a Proper Fraction.
Example- A fraction that is greater than or equal to 1 is called an Improper Fraction.
Example- A whole number and a fraction combined into one is called a MIxed Fraction.
Example- To Convert Mixed Fraction into an improper fraction, multiply the denominator with the integer and add this product to the numerator.
Example-
5
3
4
=
(
4
×
5
)
+
3
4
=
23
4
Answer and Explanation:
Identify the 3D shape shown below
Answer:
square pyramid...........
Answer:
SQUARE PYRAMID
Step-by-step explanation:
Find the sum of the first 5 terms of the following geometric series.
512 - 256 + 128 +...
Answer:
352
Step-by-step explanation:
512 - 256 + 128 - 64 + 32 = 352
Select the graph of the solution. Click until the correct graph appears.
|x| = 3
Answer:
We want to find the graph of:
|x| = 3
Remember how the absolute value function works:
|x| = x if x ≥ 0
|x| = -x if x < 0
Then for the equation:
|x| = 3
We have two possible values of x:
x = 3
|3| = 3
and x = -3
|-3| = -(-3) = 3
Then the graph of this equation is two vertical lines, one at:
x = 3
and another at:
x = -3
The graph can be seen below:
Am I correct if not plz asap help I have less Than 4 minutes
What's the Area of the parallelogram
Answer:
30
Step-by-step explanation:
Area of a parallelogram = base length * height
The parallelogram has a given base length of 10 cm and a given height of 3 cm
Hence, area = 10 * 3 = 30cm^2
A bicycle shop owner
Answer:
275, 350, 450, 550, 675
Step-by-step explanation:
Arrange in order
275, 300, 450, 490, 675
range 275 to 675
median 450
mean 438
---------------------------
Raise 300 to 350
Raise 490 to 550
New set of prices
275, 350, 450, 550, 675
range 275 to 675 same
median 450 same
mean 460 increased
Please help pleaseeeeee
Answer:
Step-by-step explanation:
Pythagorean theorem states, square of longer is equal to the sum of square of other sides.
That is, c² = a² + b²
[tex]50^2 = 48 ^2 + 14^2\\\\2500 = 2304 + 196\\\\2500 = 2500[/tex]
Therefore, the lengths satisfies Pythagorean Theorem.
If the sides of a triangle satisfies Pythagoras Theorem, then the triangle is right triangle.
27. A 35 foot long tube is cut into two pieces with ratio 4:5 Find the length of the shorter piece.
a) 9 feet
b) 16 feet
c) 12 feet
d) 20 feet
The length of the shorter piece is 15.55 feet.
Concept:Firstly, we will assume the ratio in which this tube is cut.Then, we will substitute the ratio and solve for the lengths of the two pieces.How to solve the given question?As the tube is cut into a ratio of 4:5, Let the length of the shorter piece be 4k and the longer piece be 5k.Total length of tube = 35 feetThus, the length of the shorter piece is 15.55 feet.
As none of the options matches the answer, all options are incorrect.
Learn more about Ratio & Proportion here:
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What is a Parrel line?
Answer:
parrel line never meet
Consider the graph below: Point T(-2; 3) is a point on the Cartesian Plane such that B is the angle of inclination of OT. T(-2;3) у х 2.1 Calculate the following without the use of a calculator: a) tanſ b) 13 sin B.cosB (2)
Answer:
(a) - 3/2
(b) - 78/25
Step-by-step explanation:
According to the trigonometry, the tangent of any angle is the ratio of rise to the run of the right angle triangle .
The sine of an angle is the ratio of rise to the hypotenuse of the right angle triangle.
The cosine of an angle is the ratio of run to the hypotenuse of the right angle triangle.
(a)
[tex]tan\beta = \frac{3}{-2} = \frac{-3}{2}[/tex]
(b)
[tex]13 sin\beta cos \beta = 13\times \frac{3}{\sqrt{3^2+2^2}}\times\frac{-2}{\sqrt{3^2+2^2}}\\\\13 sin\beta cos\beta = \frac{- 78}{25}[/tex]