Complete the comparison: 26 < ? a. 25 b. 54 c. 13 d. 26

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Find the value of x. round the length to the nearest tenth