Lisa, Susan, and Chris participated in a three person relay team. Lisa ran 1284 meters. Susan ran 1635 meters, and Chris ran 1473 meters. How long was the race in kilometers?

4.392 kilometers

Step-by-step explanation:

To find the length of the race in meters:

1284+1635+1473=4392 meters

Then divide by 1000 to find the length in kilometers:

4392/1000=4.392 kilometers

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!

c - you would look at a map