Paulo ran a marathon in about 1.56 × 10^4 s. a) write paulo's time in standard notation. b) miguel ran a marathon in 4 h and 16 min. who ran the race in the shorter amount of time? show your work. (question 2) solve each given equation and show your work. tell whether each equation has one solution, an infinite number of solutions, or no solution. explain your answers. a) 2x+4(x-1)=2+4x , (b) 25-x=15-(3x+10) , (c) 4x=2x+2x+5(x-x). (i posted a picture of question 3).

the answer is 0.071

good luck! : d

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!

step-by-step explanation: