f = (f1 f2) / (f1 + f2)
f(f1 + f2) = f1 f2
f f 1 + f f 2 = f1 f 2
f1 f2 - f f2 = f f1
f2 (f1 - f) = f f1
f2 = (f f1) / (f1 - f) <==== solution
An x-intercept is what x is equal to when y, or in this case q(x) is equal to 0. Lets set our equation up.
0=-2(x+3)^2 +8
-8=-2(x+3)^2
4=(x+3)^2
+-2=x+3
x=3+-2
x=1,x=5
Answer:
24 covered with peanuts
40 covered with choc chips
56 covered with sprinkles
Add 7 to 1, which is 8.
Then, add 8 to 8, which is 16.
This is a "growing pattern."
1 + 7 = 8
8 + 8 = 16
16+ 9 = 25
...
Added amount increases by 1 every time.
So, the blank is 8.