Mathematics, 24.05.2021 17:20, chrissyg76
I'll pick brainiest, pls help, also pls do not answer if you're going to tell me to download the work.
The graph below shows the height of Cindy's model rocket during the course of its flight.
Flight of Cindy's Rocket
Height (in feet)
y
22
20
18
16
14
12
10
6
4.
2.
x 0 1 2 3 4 5 6 7 8 9
Time (in seconds)
Which of these equations can be used to find the height of the rocket at any time during its flight?
A. y = 9x
B. y = x^2 - 81
C. y = -x^2 + 9x
D. y = 9 - 9x^2.
Answers: 2
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The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
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I'll pick brainiest, pls help, also pls do not answer if you're going to tell me to download the wor...
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