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DENIUS [597]
3 years ago
5

Please help asapp it's for a test

Mathematics
1 answer:
xenn [34]3 years ago
8 0
This is what I found, I hope it helps! Good luck with your test

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Help me Please Please Please Please Pleaseeeeeeee
Thepotemich [5.8K]
H = 151t - 16t²

The height of the ball when it return to the ground will be 0
0 = 151t - 16t²

The zero product property is that when two numbers are being multiplied and the product is 0, one of them must be equal to 0. Therefore, we can factorize this equation:
16t² - 151t = 0
t(16t - 151t) = 0
By the zero product property:
t = 0   or  16t - 151 = 0

So t = 0 or t = 9.44 seconds

The first solution is before he releases the ball and the second is when the ball comes back to the ground. Thus, the ball's air time is 9.44 seconds.
6 0
3 years ago
Use the table below to answer this question:
ch4aika [34]

Answer:

Step-by-step explanation:

Th average rate of change is the slope of the secant line that goes through those 2 values of x.  Of course, each value of x also has a value of y.  The coordinates for these combinations of x's and y's are:

(-1, 5) and (4, 0).  We can use the slope formula to find the average rate of change of this function without having to know what the function's equation is:

m=\frac{0-5}{4-(-1)}=\frac{-5}{5}=-1

So the average rate of change, aka slope, between those 2 points is -1

7 0
3 years ago
Last week, a skate shop originally sold a skateboard for $120. Today, there is a sale and the same skateboard costs $96. What is
Tamiku [17]
120 - 96 = 24

Now we have to find what percent of 120 24 is.

x × 120 = 24
x = 0.2

0.2 means 20%.

The discount is 20% off.
8 0
3 years ago
Three teachers equally shared StartFraction 4 Over 5 EndFraction of a flat of paper that was donated to the school. What fractio
zhannawk [14.2K]

Answer:

B. 4/15 of the flat

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the area?<br>PLEASE HELP ME!!
lidiya [134]
<span>2744 I gusse if not tell me</span>
4 0
3 years ago
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