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3 years ago

Find the volume and surface area of the composite figure. Give four answer in terms of pi

Mathematics

1 answer:

Gre4nikov [31]3 years ago

8 0

Answer:

Step-by-step explanation:

Volume = Volume of cylinder + Volume of semi sphere

= pi*r^2*h+(2/3)*pi*r^3

=pi*(4*12+16/3)=pi*53.3

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To which sets of numbers does −1/4 belong? Select each correct answer.

Pachacha [2.7K]

-1/4 will be ration because all fractions are rational

8 0

3 years ago

Jane had 27 stickers two weeks ago. She bought the same amount of stickers each day for these two weeks. Now she has 237 sticker

lesya [120]

Answer:

Jane bought 15 stickers per day.

Step-by-step explanation:

Given;

Total number of stickers Jane has = 237

Number of stickers 2 weeks ago = 27

To find : Number of stickers she bought each day for two weeks.

Solution,

Let the number of stickers she bought everyday be x.

∴ Number of stickers for 2 weeks = $14\times x=14x$

Now according to question,

Total number of stickers = Number of stickers 2 weeks ago + Number of stickers she bought for 2 weeks

$237=27+14x\\14x=237-27\\14x=210\\x=15$

Thus the number of stickers she bought everyday for 2 weeks is 15.

3 0

3 years ago

What is X? How do you know?

natka813 [3]

The sides of a right triangle are related by trig functions of the acute angles. The relationships are described by the mnemonic SOH CAH TOA. The meaning of this is
.. Sin = Opposite/Hypotenuse
.. Cos = Adjacent/Hypotenuse
.. Tan = Opposite/Adjacent

Here, you are given the adjacent side and the hypotenuse for the angle. This means you can use the relation
.. Cos = Adjacent/Hypotenuse

Putting in the given information lets you find x.
.. cos(22°) = x/11
.. 11*cos(22°) = x ≈ 10.199

8 0

3 years ago

What is 3 1/4 + 2 1/8 A) 5 1/6 B) 5 3/8 C) 5 1/2 D) 5 3/4

love history [14]

Answer:

The correct answer would be B.

Step-by-step explanation:

3 1/4 + 2 1/8

= 13/4 + 17/8

= 43/8

= 5 3/8

Hope this helps!

5 0

4 years ago

A number of two digit is equal to 3 times the sum of it's digit. The number formed by reversing it's digit plus 9 equal 3 times

olga nikolaevna [1]

Answer:

The number is 27

Step-by-step explanation:

Attached is the solution step by step

7 0

3 years ago