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saul85 [17]
2 years ago
10

How do I solve the problem k-10/2=-29

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
6 0
K is -24. 10/2:5 so -24-5=-29
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Find the measures of the legs of isosceles triangle ABC if AB= 2x+4,BC= 3x-1,AC=x+1 and the perimeter of the triangle ABC is 34
Naddika [18.5K]
(2x+4) +(3x-1) +(x+1)=34
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A CD usually sells for $14.00. If the CD is 10% off, and sales tax is 6%, what is the total price of the CD, including tax?
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Alyssa has 50 quarters and dimes. She has a total of $9.80. How many dimes does she have? Explain your steps.
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Step-by-step explanation:

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2 years ago
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Answer:

Mean = (2.2 + 2.4 + 2.5 + 2.5 + 2.6 + 2.7)/6 = 2.48

Standard deviation = √(summation(x - mean)²/n

n = 6

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Part B

Confidence interval is written as sample mean ± margin of error

Margin of error = z × s/√n

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Confidence interval is 2.48 ± 0.22

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We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

H0: µ = 2.3

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H1: µ > 2.3

This is a right tailed test

Since the number of samples is small and no population standard deviation is given, the distribution is a student's t.

Since n = 6

Degrees of freedom, df = n - 1 = 6 - 1 = 5

t = (x - µ)/(s/√n)

Where

x = sample mean = 2.48

µ = population mean = 2.3

s = samples standard deviation = 0.16

t = (2.48 - 2.3)/(0.16/√6) = 2.76

We would determine the p value using the t test calculator. It becomes

p = 0.02

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Since alpha, 0.05 > than the p value, 0.02, then we would reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the mean absolute refractory period for all mice when subjected to the same treatment increased.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

poggers + poggers = POGCHAMP

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