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3 years ago

Help pls!

Mathematics

1 answer:

photoshop1234 [79]3 years ago

5 0

Answer: 1526.8 cubic inches

Step-by-step explanation: Volume = base times height.

The base of the cylinder is πr²

We can use a scientific calculator with π, or we can use 3.14 for π. the radius is 9, 9² = 81.

The Area of the base of this cylinder is about 254.46 square feet

Multiply by the height, 6 feet

We get the volume of the cylinder 1526.82 cubic inches.

Round to 1526.8 cubic feet

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Last year Billy weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase. SHOW ALL WORK!!!

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3 years ago

PLEASE I NEED HELP WITH THIS

Ber [7]

Given:

The figure of a circle.

To find:

The measure of arc AD and measure of each arc.

Solution:

The measure of arc is equal to the central angle of that arc.

The central angle of arc AD is 105 degrees. So,

$m(arc(AD))=105^\circ$

The central angle of arc BC is 35 degrees. So,

$m(arc(BC))=35^\circ$

The central angle of arc CD is 50 degrees. So,

$m(arc(CD))=50^\circ$

The central angle of a complete circle is 360 degrees. So,

$m(arc(AD))+m(arc(BC))+m(arc(CD))+m(arc(AB))=360^\circ$

$105^\circ+35^\circ+50^\circ+m(arc(AB))=360^\circ$

$190^\circ+m(arc(AB))=360^\circ$

$m(arc(AB))=360^\circ-190^\circ$

$m(arc(AB))=170^\circ$

Therefore, the measure of arc AD is 105°, the measure of arc BC is 35°, the measure of arc CD is 50° and the measure of arc AB is 170°

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3 years ago

55% of what number is 22?

Ilya [14]

Answer:
The number is 40

Explanation:
Assume that the number we are looking for is x.
We know that 55% of the number x is 22.
This means that:
55% of x = 22
55% * x = 22
0.55x = 22

Now, we will simply solve for x as follows:
0.55x = 22
x = $\frac{22}{0.55}$ 
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Hope this helps :)

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