In the expression 2(10x) + 15y, x represents the number of hours nina works in a week at a clothing store and y represents the number of hours she works in a week as a babysitter. the expression shows how much money nina has earned this month. which statement is true?
nina has worked a total of x – y hours so far this month.
nina works 15 hours a week at the clothing store.
nina makes 20x dollars at the clothing store each week.
nina makes $10 per hour babysitting each week.

nina makes 20x dollars at the clothing store for each week. thats the answer

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! : )

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