The smith family and the turner family each used their sprinklers last summer. the water output rate for the smith family's sprinkler was 25l per hour. the water output rate for the turner family's sprinkler was 15l per hour. the families used their sprinklers for a combined total of 65 hours, resulting in a total water output of 1275l. how long was each sprinkler used?

56

step-by-step explanation:

stops on an even number.

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source