Do all rectangles have right angles

Find the inverse function of y = x squared - 12

Evaluate the expression 34 : (14 - 5) * 2.

Jane evaluates x2 - 3x + 5 for x = - 2 below. Step 1: (-2) 2 - 3 (-2) + 5 Step 2: = - 4 + 6 + 5 Step 3: = 7 What, if any, was Jane's mistake?

A cone has a radius of 6 inches and a height of 30 inches. what is the exact volume of the cone?

Solve the system of linear equations below y=-2x+19 y=x+7

Express each decimal as a fraction or mixed number in simplest form - 0.2 equals

4:9 and 32: x x = 32 x = 54 x = 72 x = 24

Calculator To determine how to crash activity times, a. shortest times with crashing must be known. b. normal activity costs and costs under maximum crashing must be known. c. realize that new paths may become critical. d.

There are 85 party favors. Each bag can hold 7 party favors. How many full bags are there? How many party favors are left over?

Find intercepts of: 2x^2+2y^2-12x+8y-24=0