Find the inner product for (7, -2, 4) (3,8,1) and state whether the vectors are perpendicular.

What is the solution to the equation 9^(x+1) =27

How can you decide witch operations to use to slice a two step equation

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18