HELP PLEASE Determine the maximum number of zeros of the polynamial function -8x^4 -x^2+2 please select the best answer choice provided

It’s 1 or 2 or 4 or 3

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?