Answer:
x=3
Step-by-step explanation:
(-3,1)
x,y > -y,-x
Therefore (-1,3) is (-3,1)
7ft = 84in 84 ÷ 15 = 5.6 pieces he can cut from each board. Since .6 is not a whole piece measuring 15 inches long, he can only cut 5 pieces from each board.
So, 5 x 2 = 10
He would be able to cut 10 pieces measuring 15 inches long.
Hope this helps :)
Answer:
A
Step-by-step explanation:
beacause if you try to multiple 4x7.5 divided by 2 try it
X^2-18 = 3x
x^2 - 3x - 18 = 0
(x-6)(x+3) = 0
x = {-3,6}
So -3 is the answer