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cricket20 [7]
3 years ago
8

Which of these people should you tip?

Mathematics
2 answers:
Natalka [10]3 years ago
5 0
People who get less than minimum hourly wage.
Ratling [72]3 years ago
3 0
The answer will be D. as they are at the lowest disadvantage in the payroll system.


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What is (3x^3)^3 in factored form? Help
Sergio [31]

Answer:

This can't really be factored, but it can be expanded slightly.

(3x³)³ = 27x⁹

4 0
3 years ago
tom has twice as many marbles as luke. together they have 39 marbles. how many marbles does tom have?
kodGreya [7K]
Tom has 26 marbles. if you need to show your work it would be 13x2= 26 and 26+13=39
3 0
3 years ago
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Solve using the Zero Product Property. What is one solution for x? (x – 5) (x + 1) =0
andriy [413]
The answer would be 2.) 5

(5-5) = 0 (5+1) = 6

0x6= 0
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100 POINTS!! Use the relationship between the angles in the figure to answer the question.
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C.x+49+28=180. Explanation:the top angle and the bottom angles are same so........ 49+28=77. 180-77=103°

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Intellectual development (Perry) scores were determined for 21 students in a first-year, project-based design course. (Recall th
Anit [1.1K]

Answer:

The 99% confidence interval is (3.0493, 3.4907).

We are 99% sure that the true mean of the students Perry score is in the above interval.

Step-by-step explanation:

Our sample size is 21.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

df = 21-1 = 20.

Then, we need to subtract one by the confidence level \alpha and divide by 2. So:

\frac{1-0.99}{2} = \frac{0.01}{2} = 0.005

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 20 and 0.005 in the two-sided t-distribution table, we have T = 2.528

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

s = \frac{0.40}{\sqrt{21}} = 0.0873

Now, we multiply T and s

M = 2.528*0.0873 = 0.2207

Then

The lower end of the interval is the mean subtracted by M. So:

L = 3.27 - 0.2207 = 3.0493

The upper end of the interval is the mean added to M. So:

LCL = 3.27 + 0.2207 = 3.4907

The 99% confidence interval is (3.0493, 3.4907).

Interpretation:

We are 99% sure that the true mean of the students Perry score is in the above interval.

7 0
3 years ago
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