What does r equal in 9r = 27

Answer: [tex]351.9\ ft^3[/tex]

Step-by-step explanation:

Given

The dimater of cylinder is [tex]d=8 \ft[/tex]

The height of the cylinder is [tex]h=7\ ft[/tex]

To fill the barrel, it must be filled with a volume equal to its volume i.e.

[tex]\Rightarrow V=\pi r^2h\\\Rightarrow V=\pi \cdot 4^2\times 7\\\Rightarrow V=112\pi\\\Rightarrow V=351.9\ ft^3[/tex]

Thus, [tex]351.9\ ft^3[/tex] of water is required to completely fill the barrel.

Answer:

669.9 ft³

Step-by-step explanation:

The formula for volume of a cone:

[tex]v=\pi r^2*\frac{h}{3} (3.14*radius*radius*\frac{height}{3} )[/tex]

[tex]r = radius,\pi =pi,h=height.[/tex]

The radius is 8; the height is 10.

From here, we can just plug the numbers into the formula.

[tex]\pi 8^2*\frac{10}{3} (3.14*8*8*\frac{10}{3} ) = 669.866666667.[/tex]

[tex]669.866666667[/tex] ≈ [tex]669.9.[/tex]

Answer:

6 inches

Step-by-step explanation:

Step 1

Find the volume of the display case

From the above question:

Volume of the small ball = 8 inches

Volume of the free space inside the display case = 208 cubic inches

Volume of the display case = Volume of small ball + Volume of free space

= 8 cubic inches + 208 cubic inches

= 216 cubic Inches

Step 2

How tall is the display case?

The display case is shaped like a square. Hence,

The length of the display case = cube root (Volume of the display case)

= cube root(216 cubic inches)

= 6 inches

Therefore, the length of the cubic display case = 6 inches

Answer:

If the free space inside the display case is 208 cubic inches, then the display case is 6inches tall.

Answer:

angle KMI = 136°

I hope this may be helpful

Answer:

pretty sure the answer is a

There is no file attached it is blank can’t help you if I can’t see what i am suppose to be doing

Answer:

12 square feet

Step-by-step explanation:

To find the area of a triangle you have to multiply the base and height and divide it by two

6 * 4 = 24

24 / 2 = 12

Answer:

12sq.ft

Step-by-step explanation:

Area of∆=1/2x base x height

=1/2 x4 x6

=1/2 x 24

=12

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE DO

Answer:

it´s good

Step-by-step explanation:

Step-by-step explanation:

m arc AD = (2×108) - 142 = 216-142= 74°

m<A = 180-108= 72°

Answer:

Step-by-step explanation:

Answer:

189.05 ft^3

Step-by-step explanation:

I think this is the right answer but I'm not 100% sure.

So first, you need to find the area of the rectangular prism. 5*5=25, and there are 5 of these rectangles (4 sides and the bottom), so the total is 125 ft^3. I don't think you would include the area of the top, as the top is not flat, and has a pyramid on it.

To find the area of the pyramid, there is a somewhat complicated and long equation that I can't write here, but you can look up the formula for the area of a square pyramid.

The area of the pyramid is around 64.05 ft^3. 125+64.05=189.0500 rounded to the nearest hundredth is 189.05 ft^3.

Answer:

a)9

Step-by-step explanation:

i dont know what b is sorry

Answer: (a) = The gcf of 63 and 36 is 9. (b) = 9 x (7 - 4)

Step-by-step explanation:

Answer:

y = 3x - 8

Step-by-step explanation:

_______________

Answer

40% and 60%  then decimal form

Answer:

it should be 42 hope it helps

Step-by-step explanation:

Answer:

Let's analyze the example first:

We have:

3, 4, 6      target 42    answer: (3 + 4)*6

If we solve the equation, we get:

(3 + 4)*6 = 7*6 = 42

So, we need to reorder the first 3 numbers in an expression, such that the solution of the expression is the target number.

a) 2, 5, 6     Target 40

We know that 5*8 = 40

and that 2 + 6 = 8

Then the answer is:

(2 + 6)*5

b) 3, 4, 6  target 12

Here we know that 4*3 = 12

and 6 - 3 = 3

Then the answer is:

(6 - 3)*4

c) 4, 6, 10   target 1.

We know that the quotient of two equal numbers is 1.

And 4 + 6 = 10

Then the answer here is:

(4 + 6)/10

d) 3, 5, 6 target 21

We know that 3*5 = 15

And 15 + 6 = 21

Then the answer here is:

3*5 + 6

e) 2, 7, 10  target 6.

Here is a harder one.

We know that 2*3 = 6

And that 10 - 7 = 3

Then the answer ere is:

2*(10 - 7)

f) 3, 6, 15   target  3

Here we can use:

(15 - 6) = 9

And 9/3 = 3

Then the answer is:

(15 - 6)/3

Answer:

x = cost of a plate = $3.2

y = cost of a cup = $1.3

Step-by-step explanation:

Let

x = cost of a plate

y = cost of a cup

5x + 4y = 21.20 (1)

6x + 5y = 25.70 (2)

Multiply (1) by 5 and 2 by 4

25x + 20y = 106 (3)

24x + 20y = 102.8 (4)

Subtract (3) from (4) to eliminate y

25x - 24x = 106 - 102.8

x = 3.2

Substitute x = 3.2 into (1)

5x + 4y = 21.20 (1)

5(3.2) + 4y = 21.20

16 + 4y = 21.20

4y = 21.20 - 16

4y = 5.2

y = 5.2/4

y = 1.3

x = cost of a plate = $3.2

y = cost of a cup = $1.3

Answer:

The answer is B. The sample was biased because the survey was only given to a select group (the males). An unbiased sample would be a large group of random people (all genders included).

Answer:

B

Step-by-step explanation:

It is wat is is my boy

Answer:

8 dozen

Step-by-step explanation:

Ans

26

Step-by-step explanation:

:D

Answer:

a is .... 50

b is .... 63

c is .... 24

Step-by-step explanation:

formula LxWxH

a.

5*2=10

10*5=50

b.

7*3=21

21*3=63

c.

4*3=12

12*2=24

Answer:

C for Question 3

B for Question 4

Answer:

C. It is a function because none of the ordered pairs have the same y-value.

Step-by-step explanation:

Answer:

its c

Step-by-step explanation: It is a function because none of the ordered pairs have the same y-value.

hope it helps

Answer:

41.7

Step-by-step explanation:

A = 6*4 = 24

B = 3.5 * (3.8-2) = 6.3

C = 3*3.8 = 11.4

A + B + C = 41.7

Answer:

36π + (18√29)π

Step-by-step explanation:

π × r² + π × r × √(r² + h²)

π × 6² + π × 6 × √(6² + 15²)

36π + (18√29)π ≈417.621