How to work out a magic square in decmals

What is the slope of the line perpendicular to the graph of - 7+y=1 a.-7 b. 1/7 c. 1/7 d. 7

Simplify: 20 sin (2x) cos (2x)

What is the quotient (x3 + 3x2 + 5x + 3) : (x + 1) ? x2 + 4x + 9 x2 + 2x x2 + 2x + 3 x2 + 3x + 8

X3=512 solve each equation for x

Evaluate 10x+18 when x=5

Ricky race $640 in a charity walk last year this year he raised 15% more than he raised last year how much money did Ricky raised this year this year

What is the inverse of h? h (x) = 6x 1

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 43 ounces and a standard deviation of 7 ounces. Use the Empirical Rule.

Sam painted the walls shown. He took 12 hours to paint the walls. If Sam took the same amount of time to paint each wall, how long did he take to paint 1 wall?

The position of an object at time t is given by s (t) = 7 - 14t. Find the instantaneous velocity at t = 7 by finding the derivative.