Answer:
- zeros: x = -2; x = +4
- factorization: y = (x +2)(x -4)
Step-by-step explanation:
The zeros are where the graph crosses the x-axis (y=0). They are x=-2 and x=4.
The factors are the binomials that are zero when x has the value of a zero:
y = (x +2)(x -4)
The formula for exponential growth is y=a(1+r)

. Where a is the initial value when time is 0 (100 in this case). r is the growth rate, we can see that the growth is 10%. And x is how much time has passed, we want to find out how many trucks after 9 years.
So we would plug the values in to get y=100(1+.1)

. Solving this gives us 235.79, so we would round up to 236, and our answer would be 236 trucks registered in the city in year 9.
Edit: The x and the 9 are exponents, the formatting made them look a bit weird.
180=11+2x
-11 -11
169/2=2x\2
x=84.5
For this case, the first thing we should use is the following equation:
c (w) = 0.013w ^ 2-w-7
We note that w = 20 belongs to the interval [5, 30]. Therefore, we can use the equation.
Substituting w = 20 we have:
c (20) = 0.013 * (20) ^ 2- (20) -7
c (20) = - 21.8
Answer:
the wind chill temperature at 0f if the wind speed is 20 miles per hour is:
c (20) = - 21.8
Answer:
3rd
Step-by-step explanation:
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