1 and 2
because you can do the math and it works:
1+2=3
1*2=2
Answer:
x^2+8x =9 equal to x^2+8x-9=0
(x+9)(x-1)
Step-by-step explanation:
x+9=0
x=-9
OR
x-1=0
x=+1
1) The 2nd, 3rd, and 4th selections are appropriate.
2) (x, y) = (0, 10) only for selection G.
We model the problem as shown in the diagram below.
To find the length of slanted pole, we use Pythagoras Theorem