Apoll of 72 seniors, taken three weeks before the selection of the school
homecoming queen, identified 60 who planned to vote for jenny wonderful.
unfortunately, a week after the poll was taken, the school newspaper ran an
article that quoted jenny slandering her opponents. another poll of 80 seniors
taken shortly after the article appeared showed that 56 planned to vote for
jenny. does this indicate a significant drop in support for jenny? use good
statistical reasoning to support your answer.

the answer is 175.4379

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!