Please help! The formula for the volume of a cylinder is:

Please Help! The Formula For The Volume Of A Cylinder Is:

Answers

Answer 1

Answer:

A

Step-by-step explanation:

isolate r by dividing by πh. take the square root on both sides to get rid of the r^2 to make it just r

Answer 2

Answer:

r =sqrt(V/ ( pi h) )

Step-by-step explanation:

V = pi r^2 h

We want to solve for r

Divide each side by pi h

V/ ( pi h) = pi r^2 h/ ( pi h)

V/ ( pi h) = r^2

Now take the square root of each side

sqrt(V/ ( pi h) )= sqrt( r^2)

sqrt(V/ ( pi h) )=r


Related Questions

Compare the ratios using the models.
7 to 16
6:8
Which statements are true? Check all that apply.
The model for the ratio 7 to 16 should show 7 cells
shaded.
The model for the ratio 6:8 should show 8 cells
shaded.
The ratio 7 to 16 is greater than 6:8.
The ratio 6:8 is greater than the ratio 7 to 16.

Answers

The correct options are Option A: the ratio 7 to 16 should show 7 cells shaded and Option D: 6:8 is also greater than 7:16.

The ratio is the representation of the fraction where the fraction is represented by : symbol.

In the ratio a:b, it simplifies that a number of parts are shades among b number of cells.

Here given two ratios are 7:16 and 6:8.

The ratio 7:16 simplifies that 7 cells are shaded from 16 number of cells.

similarly, 6:8 simplifies that 7 cells are shaded from 8 number of cells.

As 6:8 and 7:16 can be written as in the fraction form which are 6/8 and 7/16.

Then multiply 2 in both denominator and numerator of 6:8 will be

6/8= 12/16

Now comparing between 12/16 and 7/16

12/16 > 7/16 as the denominator is same and the numerator is greater in 12/16.

Then 6:8 is also greater than 7:16.

So by checking all the options

Option A  is correct:  from above i is clear that the ratio 7 to 16 should show 7 cells shaded.

Option D is correct: 6:8 is also greater than 7:16.

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y=5+3x for x
Show work

Answers

Answer:

[tex]x = \frac{y - 5}{3}[/tex]

Step-by-step explanation:

Hello!

To solve for x, we have to first isolate the variable.

Solve for x[tex]y = 5 + 3x[/tex][tex]y - 5 = 3x[/tex][tex]y - 5 = 3(x)[/tex][tex]\frac{y - 5}{3} = x[/tex]

The value of x is [tex]\frac{y - 5}{3}[/tex].

Select all the functions that show an inverse variation...
a) y=6x
b) y=3/x
c) y=1/3x
d) y= -.07x
e) y= 2/x+4
f) xy=-3

Answers

Function y=3/x, y= 2/x+4, and xy=-3 shows an inverse variation option (b), (e), and (f) are correct.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

As we know, when x is not equal to zero and k is a nonzero real number constant, the equation of the form xy = k describes the nonlinear function known as inverse variation.

a) y=6x

The above function is a linear function

b) y=3/x

or

xy = 3

The above function shows an inverse variation.

c) y=1/3x

or

y = (1/3)x

The above function is a linear function

d) y= -.07x

The above function is a linear function

e) y= 2/x+4

or

y = (2+4x)/x

xy = 2 + 4x

The above function shows an inverse variation.

f) xy=-3

The above function shows an inverse variation.

Thus, function y=3/x, y= 2/x+4, and xy=-3 shows an inverse variation option (b), (e), and (f) are correct.

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Abigail works as a salesperson at an electronics store and sells phone: accessories. Abigail earns a $12 commission for every phone she sells commission for every accessory she sells. On a given day, Abigail mad $258 in commission and sold 6 more accessories than phones. Write a equations that could be used to determine the number of phones sold a number of accessories sold Define the variables that you use to write thigail works as a salesperson at an electronics store and sells phones and phone cessories. Abigail earns a $12 commission for every phone she sells and a $3 mmission for every accessory she sells. On a given day, Abigail made a total of 258 in commission and sold 6 more accessories than phones. Write a system of quations that could be used to determine the number of phones sold and the umber of accessories sol Define the variables that you use to write the system.

Answers

The system of equations are:

$12p + $3a = $258

a - p = 6

Where:

a = phone accessories p = phone

What are the system of equations?

Two linear equations would be derived from the question. The linear equations would be a function of the phones and accessories sold. These equations are known as simultaneous equations and they would have to be solved together in order to determine the required values.

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2. Given that 5-6 ÷ 5p = 125º, find the value of 1/2p​

Answers

Answer: -50

Step-by-step explanation:

5 - 6 / 5p = 125 degrees

1/2p = ?

First, subtract 5 from both sides, that way, the 5 on the left side will cancel out.

-6/5p = 125-5 degrees

-6/5p = 120 degrees

now, multiply 5p on both sides.

-6 = 120 * 5p degrees

-6 = 600p degrees

divide 600 on both sides

-6/600 = p degrees

-0.01 = p degrees

p = -0.01

1/2p = 1 / -0.02 = -50

Hope I helped!

Which points can be connected to draw a line of symmetry through this diamond?

Drag and drop an answer to the box to complete the statement. please answer asap!

Answers

The line is drawn at point A and Point C is a line of symmetry because lines of symmetry make exactly two halves with similar shapes and sizes.

What is a line of symmetry?

It is defined as the line which will make exactly two halves with similar shape and size in geometry. For a two-dimensional shape, there is a line of symmetry, and for three-dimensional shapes, there is a plane of symmetry. In other words, if we make a mirror image of the shape around the line of symmetry, we will get exactly the same half portion.

We have given a figure in the picture.

The figure is a quadrilateral(a kite)

As we know, lines of symmetry make exactly two halves with similar shapes and sizes.

IF we draw a line from Point A to Point C we will get two similar and figures in size and shape.

Thus, the line is drawn point A and Point C is a line of symmetry because lines of symmetry make exactly two halves with similar shapes and sizes.

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Answer:

point C

Here is a step-by-step explanation of the statement:

1. Draw a point B and a point C on a piece of paper or a computer screen.

2. Draw a straight line that goes through both point B and point C.

3. Fold the paper along the line you just drew, so that the line is the fold line.

4. Notice that if you were to fold the paper exactly in half along the line, point B would match up with its reflection on the other side of the line, and point C would match up with its reflection on the other side of the line.

5. This means that the line you drew is a line of symmetry, because it divides the paper into two identical halves that can be folded together.

6. Therefore, the statement "A line drawn through point B and point C is a line of symmetry" is true.

Find the nth term of the sequence -2,6,14,22...

Answers

Answer:

[tex]\boxed{a_{n} = 2(4n - 5)}[/tex]

Step-by-step explanation:

Given :

⇒ a = -2

⇒ d = 14 - 6 = 8

Formula for nth term :

[tex]\boxed {a_{n} = a + (n-1)d}[/tex]

Solving :

⇒ aₙ = -2 + (n - 1)(8)

⇒ aₙ = -2 + 8n - 8

⇒ aₙ = 8n - 10

aₙ = 2(4n - 5)

On the first journey, a cyclist travelled 1 1/2 km in x minutes.
On the second journey, the same cyclist travelled for y hours at the same average speed as on his first journey. Express, in terms of x and
total distance travelled in km for both journeys.

Answers

The equation D = 1.5x/y represents the total distance traveled in km in terms of x.

What is the distance?

Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.

We have:

On the first journey, a cyclist traveled 1 1/2 km in x minutes.

As we know,

Speed = distance/time

Distance = 1 1/2 = 3/2 km = 1.5 km

time = x

Speed = 1.5/x

On the second journey, the same cyclist traveled for y hours at the same average speed as on his first journey.

Distance = speed×time

Distannce(D) = (1.5/x)(y)

D = 1.5x/y

Thus, the equation D = 1.5x/y represents the total distance traveled in km in terms of x.

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Question 1
Use right triangle XYZ to complete the following parts.
Part A
12
XY =
30°
? Question
What is the length of XY in AXYZ?
Type the correct answer in the box. Use numerals instead of words.
units

Answers

Answer:

XY = 6

Step-by-step explanation:

using the sine ratio in the right triangle and the exact value

sin30° = [tex]\frac{1}{2}[/tex] , then

sin30° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{XY}{XZ}[/tex] = [tex]\frac{XY}{12}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )

2 XY = 12 ( divide both sides by 2 )

XY = 6

The length of the side XY in ΔXYZ is 6 units.

What are trigonometric ratios in terms of a right-angle triangle?

We know a right-angled triangle has three sides they are -: Hypotenuse,

Opposite and Adjacent.

We can remember SOH CAH TOA which is,

sin = opposite/hypotenuse, cos = adjecen/hypotenuse and

tan = opposite/adjacent.

In reference to the angle of 30° opposite side is XY and the hypotenuse is 12 units.

We know, sin = opposite/hypotenuse.

Therefore, sin30° = XY/12.

1/2 = XY/12.

XY = 12/2.

XY = 6 units.

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Mikaela and Viktoria both competed in a curling match on opposing teams. Mikaela
said to Viktoria, "2 more than twice my team's score is the
same as three times your team's score reduced by 3." If
Viktoria's team's score was 7, what was Mikaela's team's
score?

Answers

Answer:

Mikaela's team scored 5.3 points, in whole number form 5.

Step-by-step explanation:

If Viktoria's team's score was 7, 2 more than twice is (7*2) +2.

(7*2)+2=16

16 is three times Mikaela's team's score. Reduced by three means just to divide.

16/3=5.3

Mikaela's team scored 5 points.

Hope this helps!

If not, I am sorry.

Answer:

8

Step-by-step explanation:

Make it into an equation.

2x+2=(3x7)-3

2x+2=21-3

2x+5=21

2x=16

x=8

8

Check
The tiles on the left contain functions written using function r
g(f) = 2f
f(h) = h - 7
h(g) = -4+g

Answers

The input values for each of the given functions are as outlined below.

How to identify input values of functions?

Input values are also defined as domain which is the set of input values for which the function is defined. Thus, let us look at each of the given functions;

1) g(f) = 2f. The input value here is f

2) f(h) = h - 7. The input value here is h.

3) h(g) = -4 + g. The input value here is g

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Please help me with this question

Answers

Answer:

7

Step-by-step explanation:

OK, so we're looking for the index in the fourth column and the fourth row

which is gonna be 7 if you count correctly


Examine the system of equations.
y=2x-3
y=-3
Which statement about the system of linear equations
is true?
O The lines have different slopes.
O There is no solution to the system.
O The lines have the same slope, but different y-
intercepts.
O The solution is (-3, -9).

Answers

For a system of equations to have no real solution, the lines of the equations must be parallel to each other. The correct option is A.

What is the System of equations?

Inconsistent System

For a system of equations to have no real solution, the lines of the equations must be parallel to each other.

Consistent System

1. Dependent Consistent System

For a system of the equation to be a Dependent Consistent System, the system must have multiple solutions for which the lines of the equation must be coinciding.

2. Independent Consistent System

For a system of the equation to be an Independent Consistent System, the system must have one unique solution for which the lines of the equation must intersect at a particular.

If the two of the given system of equations are plotted on the graph, then it can be observed that the two lines have different slopes. Therefore, the correct option is A.

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the expression 5 3/2 is equivalent to
to √5³

Answers

Step-by-step explanation:

[tex] = {5}^{ \frac{3}{2} } [/tex]

[tex] = \sqrt[2]{ {5}^{3} } [/tex]

[tex] = \sqrt{ {5}^{3} } [/tex]


[tex] {2}^{5} \div 4 = {2}^{5} \div {2}^{a} = {2}^{b} = c [/tex]
What Does:
a= ?
b= ?
c= ?​

Answers

15 step by step explanations

Step-by-step explanation:

please mark me as brainlest

Instructions: Simplify the algebraic expression.

[tex]4(-4x-\frac{3}{2} )[/tex]

Answers

just distribute the four to both terms:

so the answer is -16x - 6

Add the equations. Two-Variable Systems: Elimination (question is linked with the screenshot below)

Answers

Answer:

2y = 24

Given -

5x - y = (-1)

-5x + 3y = 25

To find - Summation of this

5x - y = (-1)

+ (-5x) + 3y = 25

adding both the equation we get,

5x +(-5x) - y + 3y = (-1) + 25

0 + 2y = 24

2y = 24.

Answer:

2y = 24

Step-by-step explanation:

5x – y = -1

+ - 5x + 3y = 25

2y = 24

Hence, A. 2y = 24 is the right answer.

Pls help me with these =)

Answers

a) the correct expression for the perimeter of the shape is B

the only difference between the set of whole numbers and the set of natural numbers is that 0 is only included in the set of (circle answer)

whole numbers or natural numbers).

Answers

Answer:

Whole numbers

Explanation:

0 is a whole number, but not a natural number. Whole numbers include all natural numbers and 0.

Need help with number 27 asap

Answers

Answer:

Yes

Step-by-step explanation:

Yes; points X and Y are fixed under the reflection, so they must lie on the line of reflection. Since two points determine a line, the line of reflection is XY.

https://www.rcboe.org/cms/lib010/GA01903614/Centricity/Domain/1030/Reflections.pdf

.

The table below shows the earnings, in thousands of dollars, for three different commissioned employees.

Who had the largest dollar amount in sales for the month of December?
a.
The salary plus commission employee.
b.
The straight commission employee.
c.
The graduated commission employee.
d.
They each had the same dollar amount in sales.

Answers

The answer to the person with the largest dollar sales in December is d. They each had the same dollar amount in sales.

What were the sales amounts in December?

The sales of the salary + commission employee is:

= (4,400 - 2,000) / 3%
= $80,000

The sales of the straight commission employee is:

= 5,600 / 7%

= $80,000

The sales of the graduated commission employee is:

The amount earned on the first $40,000 is:

= 5% x 40,000

= $2,000

The rest of the sales is therefore:

= (5,200 - 2,000) / 8%

= $40,000

The total sales for this employee is:

= 40,000 for 5% commission + 40,000 for 8%

= $80,000

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6. Which equation has a slope of - 7 and contains
(-2,-2) ?
A. y-2=-2(x-7)
B. y + 2 = 7(x-2)
C. y-2=-7(x + 2)
D. y + 2 = 7(x + 2)

Answers

Answer:

so there is no answer in choice

Step-by-step explanation:

y=mx+b

so we have m,y and x so we have to find b

-2=-7×-2+b

b=-16

so y=-7x-16

the answer should be

y+2=-7(x+2)

If 343* = 494-x, what is the value of x?

5/8
8/5
2
8

Answers

Answer: [tex]\frac{8}{5}[/tex]

Step-by-step explanation:

343 is equal to 7 to the power of 3.

49 is equal to 7 to the power of 2.

You can then make the equation:

[tex](7^{3})^x = (7^2)^{4-x}[/tex]

The powers law means if something is to the power of something, it is multiplied.

So, we can remove the 7 and make the equation:

3x = 2(4-x)

3x = 8 - 2x

5x = 8

x = [tex]\frac{8}{5}[/tex]

You can verify this by plugging it in,

[tex]343^{8/5} = 11388.6066[/tex]

[tex]49^{4-(8/5)} = 11388.6066[/tex]

Please don't give a long answer

Answers

Part A

2400 - 40x = 600

As she has not studied 600 flashcards still, we subtract unit rate from total.

Part B

40x - 600 = 2400

Here 'x' represent per hour. As he rents studio space for 600, subtracting this from total he earns by charging his students gives us the profit.

Part C

(600 + 40)x = 2400

Here 'x' represent mass. As masses are same for both. They can be joined.

Which if the following rules best describes the matrix below?
a.
dilation of scale factor 2
c. reflection over the line y = x
b. reflection over the y-axis
d. translation 1 unit left and 1 unit up

Answers

Answer:

D

Step-by-step explanation:

i just know i guess

HELPPPPP ITS AN EMERGENCY ITS MY FINAL GRADEEEEE

click on the photo

Answers

Answer:

D

Step-by-step explanation:

2 units right 1 unit down

Good luck

Answer:

(x-2, y+1)

Step-by-step explanation:

G(0, 4) -> G'(-2, 5)

H(2, 4) -> H'(0, 5,)

E(0, 2) -> E'(-2, 3)

F(-1, 2) -> F'(-3, 3)

factorise
answer is (a+c) (ca-b²)​

Answers

Answer:

Step-by-step explanation:

S is a subset within a universal set, u. if s = {x, y, 4, 9, ?}, which could describe u?

Answers

The set that best describes the universal set U is; U = {keys on a keyboard }

How to determine mathematical sets?

We are told that S is a subset within a universal set U.

Now, from the subset S = (x, y, 4, 9, ?), we will need to find among the given sets the one that describes the best set.

From the subset, we see that the Universal set will be keys on a key board due to the fact that the keys on a keyboard will have alphabets, numbers and punctuation marks mentioned in the set.

Therefore U = {keys on a keyboard } will be the correct answer.

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Write down six numbers that have a median of 8, a mean of 9 and a range of 13.
Hurry please!

Answers

Answer:

5 ,6,8,8,9,18

Step-by-step explanation:

5 ,6,8,8,9,18

Range:

18-5=13

Median:

8

Mean:

5+6+8+8+9+18=54

54÷6=9

What is the area of triangle ABC?

Answers

Answer:

3 square units

Step-by-step explanation:

Use BC as the base   =   2

   Use y -axis to C   (or B) as the height =  3

Area of triangle = 1/2  * base * height = 1/2 * 2 * 3 = 3 units^2

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