Square root of (20 - r) = r

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph, and the cars are 500 miles apart, how long will it be before they pass each other?

Solve x²-10x-20=0 using completing the square

A basketball team stood in a circle before a game to plan their strategy. The circle they formed had a diameter of 8 feet. What is the circle's radius?

The sum of two numbers is 8 if one number is subtracted from the other the result is - 4

What is two ways to draw 62, 6 tens 2 ones, i need the 2nd way

In the theory of learning, the rate at which a subject is memorized is assumed to be proportional to the amount that is left to be memorized. Assume that the rate at which material is forgotten is proportional to the amount memorized.

Provide the brackets in the right place to make the statement true. -6x-3-5+2=5

3/4x-5/6=2/3x how to solve?

What is - 2 1/3 - - 4 1/2

Based on Rudy's baseball statistics, the probability that he will pitch a curveball is 1/4. if rudy throws 20 pitches, how many pitxhes most likely will be curveballs?