What does a variable allow you to do that you couldn't do before

Add And Simplify. (2x-y-2z-6) + (-6x+4y+3z+8) A. - 4x+3y+z+2 B. 4x-3y-z+2 C. - 4x+3y-z-2 D. 4x-3y+z+2

Find the net force f acting on the particle. express your answer in terms of m and a.

If f (x) = 3x^2-7, find f (4). Show all work

If the measurement of a central angle is 5pi/6, find the length of its intercepted arc in a circle with a radius of 15 inches

Officials at a major university wanted to know what percent of their students recycle paper. They conducted a random survey and found these results: Answer All the time Usually Only when it's convenient Never Probability 0.55 0.25 0.15 0.

How many numbers are between k and n?

Timothy tried to solve an equation step by step. 9 (2x+1/3) = 39

Find the inverse of y = 2x^2-8

What is the equation for as amembership fee, a health club charges a one-time amount of $40 and charges $25 for each month. The total fee after m months is $240. What is the value of?

By what number would you multiply - 3/8 (fraction) to get a product of 1?