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serg [7]
3 years ago
10

PLEASE ANSWER THIS ALGEBRA QUESTION ILL MARK YOU BRAINLIEST

Mathematics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

a

Step-by-step explanation:

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The ages of several trees on school property are shown below: 3 years, 8 years, 10 years, 14 years, 11 years What is the mean ag
almond37 [142]
3+8+10+14+11= 46 
46/(how many trees) 5= 9.2
9.2 years is your answer. 
5 0
4 years ago
Read 2 more answers
Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability th
grandymaker [24]

Answer:

P(-3\% < x < 3\%) = 0.901

Step-by-step explanation:

Given

p = 21\%

n = 498

Required

P(-3\% < x < 3\%)

First, we calculate the z score

z = \sqrt{p * (1 - p)/n}

z = \sqrt{21\% * (1 - 21\%)/498}

z = \sqrt{21\% * (79\%)/498}

z = \sqrt{0.1659/498}

z = \sqrt{0.000333}

z = 0.0182

So:

P(-3\% < x < 3\%) = P(-3\%/0.0182 < z

P(-3\% < x < 3\%) = P(1.648 < z

From z probability, we have:

P(-3\% < x < 3\%) = 0.901

6 0
3 years ago
if one adult is randomly chosen from the group, what is the probability that the adult does not use a cell phone app for shoppin
Salsk061 [2.6K]

Answer:

1/100

Step-by-step explanation:

The answer is 1/100 because we don't know how many people are in the group but do know that only 1 person has been taken from the group and the probability will be 1 out of how many people are in the group so we just put 100 there as we don't know how many people are in the group.

<em>Ps: Sorry if this is wrong, this is just a guess.</em>

5 0
2 years ago
A) 15 <br><br> B) 25 <br><br> C) 40 <br><br> D) 60
Elodia [21]

Answer:

may be 25

idk the real but might be 25

Step-by-step explanation:

8 0
3 years ago
Between 20 and 28 students signed up for the chess club.
stich3 [128]
First, we find the possible candidates. Since the # can not be divisible by 2, there are no even # possibilities. This leaves 21. 23. 25. and 27. Since the # is not divisible by 3, that leaves the possibilities 23. and 25. 25 is divisible by 5, leaving the answer 23. To add on, 23 is not divisible by 4, assuring that it is correct.
23 people signed up for the chess club.
Hope this Helped
5 0
3 years ago
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