Ask question

Ask question

All categories

3 years ago

13

A punter kicks a football upward with an initial velocity of 48 feet per second. After how many seconds does the ball hit the gr

ound? use the formula h=rt-16t^2, where h represents height in feet and r represents the initial velocity (rate) in feet per second.

1 answer:

vfiekz [6]3 years ago

3 0

H=48t-16t^2
h=32t^2
The answer is that the football travels 32t^2?

You might be interested in

What is the simplified form of the following expression?

Igoryamba

Answer:

169 is the answer.

Step-by-step explanation:

I used a calculator.

7 0

3 years ago

This net can be folded to make a square pyramid. what is the surface area of the pyramid

givi [52]

Answer:

$85in^2$

Step-by-step explanation:

to find the surface area we need to find the followng areas:

area of the square

area of a triangle and multiply it by 4 (because there are 4 triangles)

And once we have those areas, we add them to find the surface area.

Area of the square:

the formula to find the area of a square is:

$a_{square}=l^2$

where $l$ is the length of the side: $l=5in$

thus the area of the square is:

$a_{square}=(5in)^2$

$a_{square}=25in^2$

Area of the triangles:

the are of 1 triangle is given by

$a_{triangle} =\frac{b*h}{2}$

where $b$ is the base of the triangle: $b=5in$ (the base of the triangle is the side of the square)

and $h$ is the height of the triangle: $h=6in$

thus, the area of 1 triangle is:

$a_{triangle} =\frac{(5in)*(6in)}{2}$

$a_{triangle} =\frac{30in^2}{2}$

$a_{triangle} =15in^2$

the area of the 4 triangles is (we multiply by 4):

$a_{4-triangles}=4(15in^2)$

$a_{4-triangles}=60in^2$

finally we add the area of the square and the area of the 4 triangles to find the total surface area:

$Surface=25in^2+60in^2$

$Surface=85in^2$

8 0

2 years ago

The sales team wantes to give the impression that there was a large increase in sales over a six-month time period. How could th

densk [106]

In order for the sales team to give the impression to their company that there was a large increasse in sales over a six month time period, they need to create a graph that have time period as the label of their x-axis or the horizontal label and sales as the label of their y-axis or the vertical label.

4 0

3 years ago

Read 2 more answers

Evaluate the following expression 30x^2y x=-2/5 y=5/8

meriva

30(-2/5)²(5/8) = 30*(4/25)*(5/8) = 30*4/(5*8) = 3

8 0

3 years ago

11.Write the equations of linear and exponential functions that pass through the points (0,9) and (1,3)

Schach [20]

9514 1404 393

Answer:

y = -6x +9

y = 9·(1/3)^x

Step-by-step explanation:

In each case, the y-intercept is 9.

Linear

The slope is rise/run = (3-9)/(1-0) = -6, so the equation is ...

y = mx + b . . . . . . . slope m, intercept b

y = -6x +9

Exponential

The ratio of value at x=1 to that at x=0 is 3/9 = 1/3. That is the "growth factor," so the equation is ...

y = 9·(1/3)^x

7 0

3 years ago