A planet has 7 rings. The first ring is 20,000 km from the center of the planet. Each ring is 50,000 km wide and 500 km apart. What is the total radius of the ring system from the planet's center...

A planet has 7 rings. The first ring is 20,000 km from the center of the planet. Each ring is 50,000 km wide and 500 km apart. What is the total radius of the ring system from the planet's center...

A circle has diameter AB, where A = (2, −5) and B = (−4, 7). (a) Find the centre C and radius r of the circle. (b) Use the distance formula to test whether P(6, −1) lies on the circle Just...

the endpoints of the diameter of a circle are D(7, -2) and E(11, -8). a) Determine the coordinates of the the centre of the circle. b) Determine the length of the circle's radius

x2+y2 -4x-6y-12=0

The area of a circle is equal to 1 dm². Find the radius of the circle. The area of a circle is equal to 1 dm². Find the radius of the circle.

Find the length of the side of the square that has the same area as a circle with radius r cm. Find the length of the side of the square that has the same area as a circle with radius r cm...

use 3.14 as pie

x^2+y^2+6x-10y-10=0

How to solve?

A bowl is in the shape of a hemisphere (half sphere) with radius 10 cm. The surface of the water in the container has a radius of 7 cm. How deep is the water? Give your answer to one decimal place...

If my husband's waist size is 37", and a plastic surgeon says he can use a method to remove 1/2 INCH of fat from an area, how much will that decrease is waist size? Or, if the circumference...

Use the method of cylindrical shells to find the volume V of the solid obtained by rotating the region bounded by the given curves about the x-axis. x + y = 7, x = 16 − (y − 3)^2

VOLUME : A spherical balloon is inflated with gas at the rate of 500 cubic centimeters per minute. How fast is the radius of the balloon increasing at the instant the radius is (a) 30 cm...

what is the radius of a circle with circumference 73yd? Write the formula in terms of r. Find the radius using the formula C=2(pi)r. Round to nearest tenth.

The picture is a circle shaded inside with a radius of 5 I can't figure out how to answer the question.

I have a length of 5.8 inch and a width of 2.9 inch. i'm trying to figure out the radius of the corners on the rounded rectangle I have.

Center and radius of a circle A circle has the equation: (x - 5)^2 + y^2 = 8 What are the center and radius of the circle?

This is an algebra 2 question, and I don't know how to approach it.

what is the radius of a circle with the circumference of 15.

A rollercoaster track provides 6400 N of centripetal force on a rollercoaster car. The car travels at a speed of 22 m/s as it rounds a horizontal curve with a radius of 15 m. What is the mass of the...