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2 years ago

Solve for a PLS HURRY

Mathematics

2 answers:

Svet_ta [14]2 years ago

4 0

Answer: D

Step-by-step explanation:

This would be my answer, I think im right but I'd wait on someone else just to be sure.

ladessa [460]2 years ago

3 0

Answer:

I guess it is d

Step-by-step explanation:

make it braintliest please

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WARRIOR [948]

Answer:

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Step-by-step explanation:

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down below is a cheatsheet.

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2 years ago

Which expression is equal to 6^4? A: 10 B: 24 C: 4^6 D: 6•6•6•6

slega [8]

The answer to ur question is d: 6x6x6x6

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2 years ago

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- 2a + 5b - 3c + 2a + b

kifflom [539]

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2 years ago

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What is the common denominator of 2/9 and 2/3

GREYUIT [131]

Answer:

Step-by-step explanation:

You can convert 2/3 to 6/9 by multiplying the numerator and denominator by 3, so that both fractions could have the same denominator

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2 years ago

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A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes

balandron [24]

Answer:

The sample size is $n = 2$

Step-by-step explanation:

From the question we are told that

The margin of error is E =4.266

The standard deviation is $\sigma = 2.539$

From the question we are told the confidence level is 99% , hence the level of significance is

$\alpha = (100 - 99 ) \%$

=> $\alpha = 0.01$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{2.58 * 2.539 }{4.266} ] ^2$

=> $n = 2$

6 0

2 years ago