9. Find a third-degree polynomial equation with rational coefficients that has roots -5 and 6+ i. a. X^3 - 7x^2 - 23x + 185 =0
b. X^3 - 7x^2 - 12x + 37 =0
c. X^3 - 7x^2 - 23x = 0
d. x^3 - 12x^2 + 37x = 0

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation:

14.29%

step-by-step explanation:

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168