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kupik [55]
3 years ago
14

Algebra pls help Really

Mathematics
1 answer:
beks73 [17]3 years ago
4 0

Answer: n=-14

Step-by-step explanation:

CONCEPT:

  • When the same-base exponents MULTIPLY= adding the exponents
  • When the same-base exponents DIVIDE= subtracting the exponents

SOLVE:

The expression in the questions is (x^{3} )(x^{-17}) which is MULTIPLYING, which means we should add the exponents together

(x^{3} )(x^{-17})=x^n ⇔ Given

x^{3+(-17)}=x^n ⇔ Adding Exponents Together

x^{3-17}=x^n ⇔ Simplify

x^{-14}=x^n ⇔ Simplify

n=-14 ⇔ Correspondingly

Hope this helps!! :)

Please let me know if you have any questions

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Answer:

Step-by-step explanation:

The data in the question is not well arranged. The correct arrangement is:

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Solution:

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This is a one tailed test(left tailed test)

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The formula for determining the test statistic is

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We would determine the probability value by using the t test calculator.

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Since alpha, 0.05 > than the p value, then we would reject the null hypothesis. Therefore, at 5% level of significance, we cannot conclude that the mean cholesterol level after treatment is less than the mean before treatment.

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