Find the common ratio of the give sequence, and write an exponential function which represents the sequence. use n=1, 2, 3, .. a)3; f(n)=81^n-1 b)3; f(n)=81(3)^n-1 c)1/3; f(n)=81(3)^n-1 d)1/3; f(n)=81(1/3)^n-1

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above