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3 years ago

What is the approximate volume of a cylinder with a height of 5 ft and a radius of 9 ft?

1 answer:

7 0

The volume of a cylinder is pi x r^2 (squared) x h.
H = Height
R = Radius.
Let's replace the letters with our numbers for this problem. (5, 3.14, 9)
Our new problem is 3.14 x 9^2(squared) x 5.
Now, what is 9 squared? We can get this by multiplying our number by itself. 9^2 (squared) = 9 x 9. 9 x 9 = 81. Now our problem is.
3.14 x 81 x 5. Now let's get our calculators out!
3.14 x 81 = 254.34. - 254.34 x 5 = 1271.7
In order to make our answer as a decimal to the hundredths place, we have to add a 0 to the right of our 2nd 7 (in the tenths place). 1271.70 can also be written as 1271.7.
Your answer is: 1271.70

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Which pair of angles are vertical angles?

lesya692 [45]

Answer:

Vertical angles are angles opposite of each other. hope it helps

7 0

2 years ago

Read 2 more answers

If the first term of the series is 30 and the 14th term is 95, what is the sum of all the terms of the series?

RideAnS [48]

Answer:

D) $S_{14} = 875$ .

Step-by-step explanation:

Given : If the first term of the series is 30 and the 14th term is 95,

To find : what is the sum of all the terms of the series.

Solution : We have given

First term = 30 .

14 th term = 95.

Sum of all term = $S_{n} =\frac{n(first\ term +\ last\ term)}{2}$ .

Here, n = 14.

$S_{14} =\frac{14(30 +95)}{2}$ .

$S_{14} =\frac{14(125)}{2}$ .

$S_{14} =\frac{1750}{2}$ .

$S_{14} = 875$ .

Therefore, D) $S_{14} = 875$ .

7 0

4 years ago

Read 2 more answers

The length of a rectangle is twice its width<br> The perimeter of the rectangle is 43cm

boyakko [2]

Answer:

7.17 cm

Step-by-step explanation:

If the width is x, the length is twice this = 2x

And

Perimeter = 2 (W + L)

Perimeter = 2 ( x + 2x)

Perimeter = 2 (3x)

Perimeter = 6x

43 = 2 ( x + 2x )

43= 2 ( 3x)

43 = 6x

= 7.17 cm

Hope this helps i'm pretty sure this is how you do it :-)

6 0

4 years ago

From the number 0,1,2,3,4,5

lubasha [3.4K]

Answer:

25, 432, 120

Step-by-step explanation:

a. 5 × 5 = 25 ways

b. 2 × 6 × 6 × 6 = 432 ways

c. 2 × 5 × 4 × 3 = 120 ways

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3 years ago

Ari is designing a patio that will be 20 feet long and 16 feet wide. He makes a scale drawing of the patio using a scale of 1 in

Anna007 [38]

Answer:

80 square feet

Step-by-step explanation:

This time I will get it right for sure!

So first we need to find the area in feet, and then convert it in to inches.

1) Since the patio has the shape of a rectangle, then the formula is:

A = a * b

A = 20 * 16

A = 320 feet

2). Now we have to find the ratio, so:

320 / 4 = 80

So, the answer is

1 square inch to 80 square feet.

Hope this helps))

8 0

3 years ago