What’s the answer help

If diameter of a circle is twice as large as the diameter of a smaller circle, What

Leona [35]

The area of a circle uses the radius of a circle, which is 1/2 the diameter.

In the calculation the radius is squared.

Since the diameter of the larger circle is twice as large the radius would be 2 times.

2 squared would be: 2^2 = 4

This means the area of the larger circle is 4 times larger which would make the ratio 4:1

3 0

3 years ago

A hollow sphere sits snugly in a foam cube so that the sphere touches each side of the cube. Find the volume of the foam.

ExtremeBDS [4]

Answer:

π

V-foam = 4r³( 2 - ----- )

3

Step-by-step explanation:

Let the radius of the sphere be r. Then the volume of the sphere is

V = (4/3)(π)(r³).

Next, recognize that the side length of the cube is 2r, and that the volume of the cube is thus

V = (2r)³, or 8r³.

Then the volume of the foam is equal to the volume of the cube less the volume of the sphere:

V-foam = 8r³ - (4/3)(π)(r³). This could be factored into

π

V-foam = 4r³( 2 - ----- )

3

5 0

3 years ago

Please help! The question and answer choices are attached.

alexandr1967 [171]

The answer is B The function shown on the graph has a smaller rate of change but a higher starting point

6 0

3 years ago

HELP !!!! picture is shown GEOMETRY

kenny6666 [7]

The right triangle is also Isosceles. It has two equal angles of 45°.

(hypotenuse)² = 2S²

4 = 2S² => S = √2

Therefore B is the correct answer.

8 0

3 years ago

A model is made of an airplane is 48 ft long and the model is 36 inches long what is the ratio of the length of the model to the

Leno4ka [110]

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5 0

4 years ago