Casey is deciding which of two landscapers to hire. each landscaper charged an hourly rate plus a fee for each job. casey correctly wrote and solved a system of linear equations by substitution. in his work, he substituted an expression for one variable and thought for the other. this resulted in the equation 5 = 20. what can casey conclude? •one landscaper charges $20 for five hours of work. •one landscapers hourly rate is $15 lower than the other landscapers. •both landscapers charge the same hourly rate and the same fee per job. •both landscapers charge the same hourly rate, but not the same fee per job.

fourth option

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.

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step-by-step explanation: