Which are prime & non-prime
6x2 - 5x^2 + 2x - 14
12^4 - 18x^2 - 8x^2 - 12
6x^3 - 9x^2 - 10x + 15
12x^2 - 3x + 4x + 7

y=x+9

?

step-by-step explanation:

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.  

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6