Jordan went swimming for 78 hour in the morning and 56 hour in the afternoon. What is the best estimate for the total time Jordan went swimming?

​78​hour is closest to . 56​hour is closest to . Therefore, the best estimate for the total time Jordan went swimming is close to .

A: 0 hours
B: 1/2 hours
C: 1 hour
D: 2 hours
E: 3 hours

2 hours I think

Step-by-step explanation:

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