Ms. G is a college track coach who is curious about the appropriate amount of distance training for her athletes. Ms. G decides to run an experiment. She randomly divides her runners into two groups. The first group does about 20 miles of distance training per week, and the second group does about 30 miles of distance training per week. At the end of the two weeks, all of the runners compete in a mile run, yielding the results below. Based on the center and variability of each distribution, what inferences can you draw about the
two populations? By visual inspection, which group would you expect to have a greater MAD based on the plots?

3/6   and 9/18

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!

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.

step-by-step explanation: