What is the first step in solving the following problem? If a football field is 100 yd long, how would you find its length in miles?
A.
Multiply 100 times the conversion factor
1 mi
1760 yd
O B.
Multiply 100 times the conversion factor
1760 yd
1 mi
O C.
1 mi
Divide 100 into the conversion factor
1760 yd
O
D.
Divide 100 into the conversion factor
1760 yd
1 m i

answer: idk

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

the answer is c

step-by-step explanation: i took a test with this question on it

i don't think there is enough