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pashok25 [27]
3 years ago
9

Evaluate 15 − 4 + (7 − 5)2 = __________. Numerical Answers Expected!

Mathematics
2 answers:
LenaWriter [7]3 years ago
6 0
The answer would be 15
QveST [7]3 years ago
3 0
The answer is 15

Hope this helped, Good luck! (:
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Help ASAP please! ill mark brainliest!
alexdok [17]

Answer:

8!

Step-by-step explanation:

8 0
3 years ago
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In the 8-sided figure below, adjacent sides meet at right angles and the lengths are given are in meters. What is the perimeter
Nataly [62]

Answer:

80

Step-by-step explanation:

Look at the figure below. The perimeter is the same as if the corners were moved out to form a square. Then you have 4 congruent sides of length 20.

P = 4 * 20 = 80

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3 years ago
4x = 30-x please solve
Kipish [7]

Answer:

<h2>x = 6</h2><h2 />

Step-by-step explanation:

4x = 30 - x

5x = 30

x = 30/5

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Question 1 of 5 The Ridgeport school district collected data about class size in the district. The table shows the class sizes f
exis [7]

Answer:

C is the correct answer

Step-by-step explanation:

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3 years ago
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The data found below measure the amounts of greenhouse gas emissions from three types of vehicles. The measurements are in tons
Y_Kistochka [10]

Answer:

1.

A. H0 :  μ1 = μ2 = μ3

Ha : μ1 ≠ 2μ ≠ μ3

2. Test Statistics = 95%

3. Critical F-Value = 3.76

4. P-Value = 2.32

5. Conclusion : Reject the null hypothesis

6. Type of vehicle does effect the amount of green house gas emissions.

Step-by-step explanation:

The correct order of the steps of a hypothesis test is given following  

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the critical value F-test for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

These steps are performed in the given sequence to test a hypothesis.

The null hypothesis is rejected or accepted on the basis of level of significance. When the p-value is greater than level of significance we fail to reject the null hypothesis and null hypothesis is then accepted. It is not necessary that all null hypothesis will be rejected at 95% level of significance. To determine the criteria for accepting or rejecting a null hypothesis we should also consider p-value.

3 0
3 years ago
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