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Oliga [24]
3 years ago
14

Which of the following represents a statistical question?

Mathematics
1 answer:
harkovskaia [24]3 years ago
3 0
The third one, because statistical questions have variables that can change
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A rocket is launched from the top of a 99-foot cliff with an initial velocity of 122 ft/s.
Harman [31]
Remember that c is the initial height. Since we the rocket is in a 99-foot cliff, c=99. Also, we know that the velocity of the rocket is 122 ft/s; therefore v=122
Lets replace the values into the the vertical motion formula to get:
0=-16 t^{2} +122t+99
Notice that the rocket hits the ground at the bottom of the cliff, which means that the final height is 99-foot bellow its original position; therefore, our final height will be h=-99
Lets replace this into our equation to get:
-99=-16 t^{2} +122t+99
-16 t^{2} +122+198=0

Now we can apply the quadratic formula t= \frac{-b+or- \sqrt{ b^{2} -4ac} }{2a} where a=-16, b=122, and c=198
t= \frac{-122+or- \sqrt{ 122^{2}-(4)(-16)(198) } }{(2)(-16)}
t= \frac{-122+ \sqrt{27556} }{-32} or t= \frac{-122- \sqrt{27556} }{-32}
t= \frac{-122+166}{-32} or t= \frac{-122-166}{-32}
t= \frac{-11}{8} or t=9

Since the time can't be negative, we can conclude that the rocket hits the ground after 9 seconds.
5 0
3 years ago
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What is the remainder when 16055 Is divided by 16? Input numeric values only
MAXImum [283]
The remainder is 1003.4375
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3 years ago
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Find the compound interest on 800 at 5% per annum for 2 years.​
Ludmilka [50]

Answer:

C = 82

Step-by-step explanation:

Given

R = 5\% -- Rate

P = 800 -- Principal

N = 2 -- Time

Required

Determine the compound interest

First, we calculate the Amount (A)

A = P(1 + R)^N

A = 800*(1 + 5\%)^2

Express % as decimal

A = 800*(1 + 0.05)^2

A = 800*(1.05)^2

A = 882

The compound interest (C) is then calculated as:

C = A -P i.e. Amount - Principal

C = 882 - 800

C = 82

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2 years ago
Charlie wants to order lunch for his friends. He'll order 5 sandwiches and a $3
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An just tryna get points

Step-by-step explanation:

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If three people share 1 / 2 pound of peanuts how much will each person have?
zhenek [66]
About .17 pounds. ( just keep the peanuts to yourself) lol
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3 years ago
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