After substituting, what is the first step when evaluating 4y+9
7
when y = 82
Add 4 and 9.
O Multiply 8 by 4.
Divide 9 by 7
O Divide 4 by 7

step-by-step explanation:

the answer is 13 cm

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.

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