Answer: A. 87 feet
Step-by-step explanation:
1. You can find the t value of the vertex of the parabola as following:
2. Substitute values:
a=-16
b=70
Then:
3. Substitute the vaue obtained into the equation given in the problem. Therefore, you obtain the following result:
4. To the nearest foot:
h=87 feet
The solutions to the equation are k = 1 and 8
The given equation is:
Square both sides of the equation
Expand the left side of the equation above
Write the quadratic equation in standard form
Factor the quadratic equation
Use the zero product property
k - 8 = 0
k = 8
k - 1 = 0
k = 1
The solutions to the equation are k = 1 and 8
Learn more here: brainly.com/question/25840704