Answer:
Vertex form: 
Height expressed as a function of time: 
Step-by-step explanation:
We have been given that the ball is 4 ft above the ground when she hits it.
This means that initial value (y-intercept) of ball is 4.
We are also told that three seconds later it reaches its maximum height of 148 ft. This means 
.
We know that vertex form of a parabola is in format 
.
Let us solve for a using our given information.
Therefore, the vertex form of our given function would be 
.
Since we need height as a function of time, so we will get:
Therefore, the function where height is expressed as a function of time would be .
Mean = 26.75
Range = 25
The answer is C!
Answer:
I don't know the answer to this question
Answer:
4/7
Step-by-step explanation:
The surface area of the triangular prism is of 140 cm².
<h3>What is the surface area of a prism?</h3>
It is the sum of the areas of all faces of a prism. In this problem, the prism has these following faces:
- One rectangle of dimensions 8 cm and 6 + 4 + 5 = 15 cm.
- Two right triangles with sides 4 cm and 5 cm.
For a rectangle, the area is given by the multiplication of the dimensions, hence:
Ar = 8 x 15 = 120 cm²
For each right triangle, the area is given by half the multiplication of the sides, hence:
At = 2 x 0.5 x 4 x 5 = 20 cm².
Then the surface area of the prism is:
S = 120 cm² + 20 cm² = 140 cm².
More can be learned about surface area at brainly.com/question/28123954
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