Meet Jack and Jill, twenty year-old twins who just graduated from college, Jill immediately upon entering the work force, began contributing $6,000 a year to a stock mutual fund and continued to do so for the next ten years, until she got married
and found more pressing uses for her money. Jack on the other hand married his college sweetheart immediately upon
graduating and soon after started a family and didn’t start investing until he was thirty. Then he too contributed $6,000 a
year to the same stock fund and he continued doing so until he retired at age sixty-five. All told, Jack invested a total of $210,000 while Jill only contributed
$60,000.
a) At age sixty-five, which of the two siblings had the most money assuming they earned an average rate of return equal to 7% a year? (by how much?)
b) If Jill did not stop investing, how much would she have?

sites:

overpriced

step-by-step explanation:

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!