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dsp73
2 years ago
11

Can someone help me out

Mathematics
1 answer:
madam [21]2 years ago
3 0

the first part isn't 90, it's 180.

the whole circle is 360, half of 360 is 180


an acute angle is any angle less than 90 degrees.

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A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 7 meters. If concrete costs $94 per c
ikadub [295]

Answer:

C = $33,057.92

The cost of the pillar is $33,057.92

Step-by-step explanation:

Given;

Radius of the concrete r = 4 m

Height h = 7 m

Cost per volume R = $94 per cubic meter

π = 3.14

The volume of the cylinder shape concrete is;

V = πr^2 h

Substituting the given values;

V = 3.14×4^2 × 7

V = 351.68 m^3

The cost of the pillar is C;

C = Volume × cost per volume

C = V × R

C = 351.68 m^3 × $94 per cubic meter

C = $33,057.92

The cost of the pillar is $33,057.92

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3 years ago
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elena-14-01-66 [18.8K]

Answer:

c+10=3

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Step-by-step explanation:

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2 years ago
True or False: In order to prove that two functions are inverses, you can show that f (g(x)) = x AND show that g (f ()) = x. Thi
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antiseptic1488 [7]

Answer:

It doesn't form a right triangle

Step-by-step explanation:

According to the Pythagorean theorem, the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.

a^2 + b^2 = c^2 by substituting the three values, 10, 15, and 20 you should get an equivalent value of the hypotenuse.

10^2 + 15^2 = 20^2

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This is false.

Since this is not equivalent, it is NOT a right triangle.

Hope this helped :)

5 0
3 years ago
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