Answer:
6 ft
Step-by-step explanation:
As we know that, the arch meet the ground are the value of x when y = 0
y=−0.9(x+3)(x−3)
<=> 0 = −0.9(x+3)(x−3)
<=> x=3 or x=-3
So we have 2 coordinates: (3, 0) and (-3,0) and the distance between them is:
3 -(-3) = 6
=> The width of the arch at ground level is 6 ft
Answer:
y=x+7
Step-by-step explanation:
just plug it in on a coordinate plane and you should get your answer I'll attach a screenshot
Answer:
40.
Step-by-step explanation:
5=1/5x-3
8=1/5x
40
Brainliest PLS
Hello :
y = -2x² - 9x+5
the y - intercept when : x=0 so : y =-2(0)²-9(0)+5 = 5
The answer is 76 I think. Don't hold it against me if I'm wrong. :)
