Solve the following system of equations. 3x + 3y + 2z = -5, x + y + 3z = -4, 2x + 2y + 5z = -7

The functions q and r are defined as follows. q(x)= -2x+2 r(x)= x^2 - 1 find the value of r(q(

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236

Write the percent as a fraction or mixed number in simplest form. 0.8%