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myrzilka [38]
3 years ago
12

Please choose an answer and tell me why you chose that

Mathematics
1 answer:
solong [7]3 years ago
7 0

Answer:

A

Step-by-step explanation:

92+55+85+45+83=360

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What are the Pythagorean Triples?
Naily [24]

 is a set of three integers a, b, c which form the sides of a right angled triangle.  The smallest Pythagorean triple is the set of numbers 3,4,5.What formula do a, b, c have to satisfy for the triangle to have a right angle opposite side C?

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3 years ago
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If you have 100$ and then lose 25$ ,what is the percent change
Keith_Richards [23]

Answer:

75 %

Step-by-step explanation:

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7 0
2 years ago
Paul has some money in his wallet, all in $1 bills. He buys a hat and has $6 left, as shown in
igor_vitrenko [27]

Answer:

we need to see the model

Step-by-step explanation:

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7 0
2 years ago
Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students r
BaLLatris [955]
<h2>Answer with explanation:</h2>

Let p be the population proportion  of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Given : Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Set hypothesis to test :

H_0: p=0.39\\\\H_a :p\neq0.39

Sample size : n= 1055

Sample proportion : \hat{p}=\dfrac{466}{1055}=0.441706161137\approx0.44

Critical value for 95% confidence : z_{\alpha/2}=1.96

Confidence interval : \hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

0.44\pm (1.96)\sqrt{\dfrac{0.39(1-0.39)}{1055}}\\\\0.44\pm0.0299536805135\\\\0.44\pm0.03\\\\=(0.44-0.03, 0.44+0.03)\\\\=(0.41,\ 0.47)

Since , Confidence interval does not contain 0.39.

It means we reject the null hypothesis.

We conclude that 95​% confidence interval represents evidence that​ parents' attitudes toward the quality of education have changed.

8 0
3 years ago
A group of students are standing in rows. There are as many students in a row as there are rows. If there are 64 students in the
Zanzabum

Answer:

B..im pretty sure

Step-by-step explanation:

First it cant be D because 12 x __ = 64. There is no whole number multiplied by 12 that equals 64. So cross that out. then it's not B because 6 x ___ = 64. So also cross that out. the only thing u have left is 4 and 8. Then u can cross out A because the group of students has to be the same number of rows. Which is 8 x 8 aka B. The answer is B

4 0
2 years ago
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