Greg is at his house. He gets in the car and drives north 7.4 miles and stops at the store. Then he drives 5.7 miles south to his friend's house. How far is the friend's house from Greg's house? Group of answer choices

2.7 miles

1.7 miles

13.1 miles

42.18 miles

Given:

Greg drives north 7.4 miles and stops at the store.

Then he drives 5.7 miles south to his friend's house.

To find:

The shortest distance between Greg's house and his friend's house.

Solution:

Greg drives north 7.4 miles.

He drives 5.7 miles south.

The shortest distance between Greg's house and his friend's house is difference between distance he drives north and distance he drives south.

Shortest distance = (7.4 - 5.7) miles

                             = 1.7 miles

The shortest distance between Greg's house and his friend's house is 1.7 miles.

Therefore, the correct option is C.

what are you trying find out?

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!