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Marizza181 [45]

3 years ago

10

The circumference of a circle is similar to the

1 answer:

Reil [10]3 years ago

3 0

Answer:

The diameter by Pi or The radius multiplied by 2 time Pi

Step-by-step explanation:

This is because this is how you get the circumference.

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A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. A sphere with height h a

8090 [49]

Answer:

C. 14 metres cubed

Step-by-step explanation:

The volume of a sphere is denoted by: $V=\frac{4}{3} \pi r^3$ , where r is the radius, while the volume of a cylinder is denoted by: $V=\pi r^2h$ , where r is the radius and h is the height.

Here, we know that the sphere and cylinder have the same radius and height. However, the "height" of the sphere is technically just the diameter, which is twice the radius. So, h = 2r. We know the volume of the cylinder is 21, so:

$V=\pi r^2h=\pi r^2*2r=2\pi r^3$

$21=2\pi r^3$

πr³ = 21/2 = 10.5

Now plug this into the volume of a sphere formula:

$V=\frac{4}{3} \pi r^3$

$V=\frac{4}{3} *10.5=14$

The answer is C, 14 metres cubed.

5 0

3 years ago

Read 2 more answers

Caleb invested $8,800 in an account paying an interest rate of 2.8% compounded daily. Assuming no deposits or withdrawals are ma

aniked [119]

Answer: 14.1

Step-by-step explanation:

8 0

3 years ago

State the number of complex roots, the number of positive real roots and the number of negative real roots of x^4 - x^3 - 6x +3

maria [59]

Answer:

Which points are collinear?

G, A, and T

G, E, and T

A, T, and E

G, A, and E

Step-by-step explanation:

that what i nkow sorry

5 0

3 years ago

Read 2 more answers

I just need help on this problem please. Thanks :)

Vedmedyk [2.9K]

All of them are the correct answer.

5 0

3 years ago

Find the missing length of the triangle. *

Amanda [17]

Answer:

50 ft

Step-by-step explanation:

This is the pythagorean theorem, so you should use the formula...

a squared + b squared = c squared

Then substitute in the numbers... (remember, a and b are the legs, and c is the hypotenuse)

14 squared + 48 squared = c squared

14 squared = 14 x 14 = 196

Now we have 196 + 48 squared = c squared

48 squared = 48 x 48 = 2,304

Now we have 196 + 2,304 = c squared

Add them together - 2,304 + 196 = 2,500

Now we have 2,500 = c squared

We find the square root of 2,500 which is 50

You should now have 50 = c

That is your answer. Don't forget to add units.

50 ft is your hypotenuse (c)

I hoped this helped

6 0

3 years ago

Read 2 more answers