R (r1+r2) = r1r2

How do I solve for r

In ΔRST, the measure of ∠T=90°, ST = 8.7 feet, and TR = 7.1 feet. Find the measure of ∠S to the nearest degree.

A painter has enough paint to cover 300 square feet of surface. Which square section of a wall is the largest she could cover with this much paint? A. 16 ft by 16 ft B. 17 ft by 17 ft C. 18 ft by 18 ft D. 19 ft by19 ft

What is pi, 3.14,3 1/4, 25/7 in order from least to greatest

Which answer is the best explanation for how to set up this problem? 235 + 64.1 = ? A. Put a zero after the 1 in 64.1 and align the 2 in 235 with the 6 in 64.1. B. Align place values so that the 5 in 235 is aligned with the 1 in 64.1. C.

Tree A flowers every 2 months. Tree B flowers every 3 months. Tree C flowers every 6 months. All three trees flower in August. In which month will they next flower together?

Solve and simplify '8 - y + 7y = 40

What is the solution of 12b=18

How can we solve fractions

F (x) = 2x-1 and g (x) = - x+5 what is the solution of f (x) = g (x)

The radius of a circle is 1 millimeter what is the circle area