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MariettaO [177]
2 years ago
8

Which of the following relations is a function?

Mathematics
1 answer:
Mashcka [7]2 years ago
6 0

Answer:

oD is function

Step-by-step explanation:

(2,4),(-1,6),(-8,2),(2,3) is function

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How is (5^-3) written as repeated multiplication?
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Answer:

To write repeated multiplication of the same number in exponential notation, first write the number being multiplied as the base. Then count how many times that number is used in the multiplication, and write that number as the exponent.

Step-by-step explanation:

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Ricky types at a rate of 68 words per minute. The equation w = 68m can be used to find w, the number of words he has typed after
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Answer:

2380

Step-by-step explanation:

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2 years ago
A professor would like to test the hypothesis that the average number of minutes that a student needs to complete a statistics e
professor190 [17]

Answer:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

Step-by-step explanation:

Information given

n=15 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =16 represent the sample variance

\sigma^2_0 =25 represent the value that we want to  verify

System of hypothesis

We want to test if the true deviation for this case is lesss than 5minutes, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 \geq 25

Alternative hypothesis: \sigma^2

The statistic is given by:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And replacing we got:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

6 0
3 years ago
For each ordered pair (x,y) , determine whether it is a solution to the inequality
Leviafan [203]
The answer are below, the work is show step by step.

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3 years ago
Which expression is equivalent to -42 x -1.5
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Answer:

beesechuurger

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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