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3 years ago

8^15÷8^−3 it needs to like this 43^5 I can't find out the answer

Mathematics

2 answers:

alekssr [168]3 years ago

4 0

Answer:

8^12

Step-by-step explanation:

Exponents are confusing at first. You subtract them when dividing, and add them when multiplying, if the base number is the same.

Picture 8 to the 15th as a numerator of:

8x8x8x8x8x8x8x8x8x8x8x8x8x8x8 over a denominator of

8x8x8

To solve that, you'd cancel out 3 of the top 8s and the three bottom 8s, marked in bold to be easier to see. This leaves you with

8^12

Does that help?

Happy to answer questions.

RideAnS [48]3 years ago

3 0

Answer:

Hello!

The answer is 8^18.

Step-by-step explanation:

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Barrons reported that the average number of weeks an individual is unemployed is 17.5 week. assume that for the population of al

slega [8]

Answer:

$\mu = 17.5$

$\sigma = 4$

n = 50

A) show the sampling distribution of x, the sample mean average for a sample of 50 unemployment individuals.

We will use central limit theorem

So, mean of sampling distribution = $\mu_{\bar{x}}=\mu = 17.5$

Standard deviation of sampling distribution = $\sigma_{\bar{x}}=\frac{\sigma}{\sqrt{n}}= 0.5656$

B) What is the probability that a simple random sample of 50 unemployment individuals will provide a sample mean within one week of the population mean?

A sample mean within one week of the population mean means $x-\mu = 1$

So, $P(|x-\mu|$

= $P(\frac{-1}{\frac{4}{\sqrt{50}}}$

= $P(-1.77$

= $P(z$

=0.9616-0.0384

=0.9232

The probability that a simple random sample of 50 unemployment individuals will provide a sample mean within one week of the population mean is 0.9232.

C) What is the probability that a simple random sample of 50 unemployed individuals will provide a sample mean within a half week of the population mean?

A sample mean within one week of the population mean means $x-\mu = 1$

So, $P(|x-\mu|$

= $P(\frac{-1-0.5}{\frac{4}{\sqrt{50}}}$

= $P(-0.88$

= $P(z$

=0.8106-0.1894

=0.6212

The probability that a simple random sample of 50 unemployed individuals will provide a sample mean within a half week of the population mean is 0.6212

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4 years ago

Which of the following describe an angle with a vertex at E?<br> Check all that apply.

Llana [10]

Answer: The correct options are

(A) DEF.

(C) FED.

Choices:

A. DEF B. DFE C. FED D. EFD

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4 years ago

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determine if the sequence below is arithmetic or geometric and determine the common difference/ ratio in simplest form 5,15,45,.

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Answer:

It's geometric and common difference is 3

Step-by-step explanation:

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45/15=3

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3 years ago

In ΔKLM, the measure of ∠M=90°, LM = 1.1 feet, and KL = 4.2 feet. Find the measure of ∠L to the nearest degree.

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3 years ago

PLEASE HELP ME!!! philip would be able to buy 15 apples if he had $2.10 more money than he has now. if he buys 12 apples, how wo

Elodia [21]

One apple cost $1.8 while the money that Philip has is $24.90

Let x represent the cost of each apple and y represent the money he has presently.

He can buy 15 apples if he had $2.10 more money than he has now, hence:

15x = y + 2.1

15x - y = 2.1 (1)

Also, if he buys 12 apples, how would have $3.30 left of the money he has now. Hence:

12x + 3.3 = y

12x - y = -3.3 (2)

Solving equations 1 and 2 gives:

x = 1.8, y = 24.9

Hence one apple cost $1.8 while the money that Philip has is $24.90

Find out more at: brainly.com/question/16763389

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2 years ago