Considering the vertex of the quadratic equation, the maximum height that the object will reach is of 80 feet.
<h3>What is the vertex of a quadratic equation?</h3>
A quadratic equation is modeled by:

The vertex is given by:

In which:
Considering the coefficient a, we have that:
- If a < 0, the vertex is a maximum point.
- If a > 0, the vertex is a minimum point.
In this problem, the equation is:
f(t) = -16t² + 64t + 16.
Hence the coefficients are:
a = -16, b = 64, c = 16.
The maximum value is found as follows:

More can be learned about the vertex of a quadratic equation at brainly.com/question/24737967
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Answer:
1. The total number of students in the 25-34 age group
2. 2124/19558*100= 10.9 %
Step-by-step explanation:
No
No
No
Yes
Yes
They have to be whole numbers
For this case we must solve the following system of equations:

We multiply the first equation by -2:

We add the new equation with the second one:

We have different signs subtracted and the sign of the major is placed:

Now we find the value of the variable "y":

Thus, the solution of the system is given by:

Answer:

X= 12(.7)^x(exponent)
x is the doll you are on. For example if your looking for the height of the height of the doll after the 12 in. one then x=2 and so on