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3 years ago

Whats the area of this figure?

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

8 0

The figure is 610 km^2. You have to make it into a large square 35 by 22 and then subtract the missing spots.

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There are two right circular cylinders. The radius of the first cylinder is 4 centimeters, and its height is 5 centimeters. The

Lina20 [59]

Answer:

D. 9:1

Step-by-step explanation:

The formula for the volume of a cylinder is πr² · h (pi · radius² · height) (use 3.14 for pi).

The two right circular cylinders have the same height. The larger cylinder has a radius that is three times the size of the smaller radius.

4 · 3 = 12

However, in the equation for volume, the radius is squared. Because of this, the larger cylinder is 9 times the size of the smaller cylinder because 3² = 9.

You can check your work by finding the volume of the two cylinders using the volume formula πr² · h:

3.14 · 4² · 5 = 251.2

3.14 · 12² · 5 = 2,260.8

The cylinder with a radius of 12 cm is 9 times the size of the cylinder with a radius of 4 cm.

2.260.8 ÷ 9 = 251.2

5 0

3 years ago

The percent increase from 18 to 26 is about...?

Shalnov [3]

Answer:

≈44.44%

Step-by-step explanation:

≈44.44%

To solve this, we can use a simple proportion.

Assuming 18 = 100%...

$\frac{18}{100}=\frac{26}{x}$

Then, using cross multiplication...

$18x=100(26)$

$18x=2600$

Now divide 18 from both sides.

x ≈ 144.44

Now subtract 100 from ≈144.44, leaving us with

≈44.44%

3 0

3 years ago

Why is it preferable to measure a penny in millimeters rather than centimeters or meters?

andrey2020 [161]

Pennies are small so, if would be more accurate and have whole numbers. If u measured with an inch or meter, u would get a fraction for an answer.

8 0

3 years ago

Read 2 more answers

Please Help! Urgent!

inn [45]

Answer:

Step-by-step explanation:

123/500

4 0

3 years ago

Read 2 more answers

Analyze the diagram below and complete the instructions that follow. Find the unknown side lenght x. Write your answer in simple

Marina86 [1]

I'm going to work from left to right here, starting with the base of the largest triangle and ending with x. Pay close attention to the sides I am describing since there are no distinctive values for each vertex. The base of the largest triangle is also the hypotenuse of the one next to it. We will look at that missing side as the base of the large one to solve it. Since these are all right triangles, every single side/hypotenuse we solve for will use Pythagorean's theorem. The first missing side is found by $52^2-48^2=c^2$ . Simplifying we get 2704 - 2304 = c^2. c^2 = 400 so c = 20. That first missing side is 20. Now we move to the next triangle in line. we have the hypotenuse of that triangle as 20 and the base as 12. The formula to find the missing side is $20^2-12^2=c^2$ and c^2=256. c = 16. 16 is the length of that whole side, but that whole side is actually the bases for those 2 small triangles. Before we can solve for x we have to find out what the base of the larger of the 2 triangles is and subtract that from 16 to find the base of the triangle with x in it. Got that? The hypotenuse is 13 and the height is 5, so the formula to find the base of that triangle is $13^2-5^2=c^2$ and $169-25=c^2$ so $144=c^2$ and c = 12. That means that the base of the triangle with x in it is 16 - 12 which is 4. Now we have the base as 4 of that triangle and the height as 5, so we solve for x: $4^2+5^2=x^2$ and $25+16=x^2$ so $x^2=41$ and finally we have that $x=\sqrt{41}$ . That is the simplest radical form, so that's your answer!

7 0

4 years ago