Which equation would represent exponential decay? a. f (x) = 4(1.03)^x
b. f (x) = -2x - 5
c. f (x) = -3(1.02)^x
d. f (x) = 2(.87)^x

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?