A machine depreciates by 14 of its value each year. When purchased new it costs $640,000, what explicit expression represents its value in the nth year? a. 640,000(3/4)^n
b. 640,000(1/4)^n-1
c. 3/4(640,000)^n-1
d. 640,000(3/4)^n-1

Which graph represents an even function?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

What are the solution(s) to the quadratic equation x2 – 25 = 0? o x = 5 and x = -5ox=25 and x = -25o x = 125 and x = -125o no real solution