Evaluate ^4√9√9/^4√9^5
A: 9 -1/-2
B: 9 -1/-4
C: 9
D:9^2

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

What is perpendicular to y=-1/2x+11