Answer:
k = -20.
Step-by-step explanation:
Do the division:
4x ) 12x^2 + kx ( 3x
12x^2 + k/4
So k/4 = - 5
k = -20.
Answer:
70° and 20°
let the other 2 angles be 7x and 2x
90+7x+2x=180
9x=180-90
x=90/9
x=10
7x=7x10
70
2x=2×10
2p
A. The expression for the problem is 10+ 2x (10 dollars a week plus 2 per chore.)
B.10 +2(5) =$20
C. 10(4)+2x=144 // 40+2x=144 //2x=104 // x=52 (she will need to do 52 chores :)
The answer is A because if you do 10*10*10 that would give you 1k and if u multiply that by 2 you get 2k