Solve cos2x-sin²x=cos²x+3cosx​

Will mark brainliest with 20 points! the table shows how far object 1 traveled as a function of time. *time (seconds) - 2 4 6 8 *distance traveled (feet) - 18 36 54 72 the equation shows how far object 2 traveled in feet as a function of time in minutes. *f(x) = 10x which object traveled at a faster speed? justify your response.

Which number produces a rationale number when multiplied by 1/5

What is the value of f(x) = 2.2 for f(-2)?