The answer is either 18.5 or 18.7, choose wisely.
If one zeros is x= -7 then the other zero is x=5
Step-by-step explanation:
We are given the function: 
If one zeros of the function is x=-7 we need to find other zero of the function.
We can find zeros of the quadratic equation by factorizing the equation

Factorizing the quadratic equation:

So, if one zeros is x= -7 then the other zero is x=5
Keywords: Solving Quadratic Equation
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Answer:
16
Step-by-step explanation:
55-7= 48
48/3 = 16
Answer:
Rate of Decay = 8%
Step-by-step explanation:
The decay formula is:

Where F is the final value (here, it is given as "Y")
P is the initial value (here, given as 20,000)
r is the rate of decay (what we need to find)
t is the time (given as 2)
Comparing both the equations:

We see that:
1 - r =0.92
We solve for "r":
1 - 0.92 = r
0.08 = r
The rate of decay is 0.08, as a percentage, we need to multiply by 100, so we have:
0.08 * 100 = 8%
Rate of Decay = 8%