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julsineya [31]
3 years ago
11

Solution of 2/3 x =12 ?

Mathematics
1 answer:
Contact [7]3 years ago
7 0

Answer:

x = 18

Step-by-step explanation:

2/3 x = 12

x = 12 × 3/2

x = 6 × 8

x = 18

Hoping it helps you dear

Please follow me

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How to evaluate 4(x+2−5x) when x=2
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Answer:

-24

Step-by-step explanation:

4(x+2−5x)

Combine like terms

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A number with the same value as 32
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32*10=320 Hope you like and rate
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Four less than the product of ten and a number is eleven. is
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Answer:

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cricket20 [7]

As described in z-distribution the answers are given below:

a) The 95% confidence interval estimate for the population mean spending by a customer on visiting salon per month is given as follows: (747, 853).

b) The sampling error at 95% confidence level is of: $35.78.

What is a z-distribution ?

The normal distribution with a mean of 0 and a standard deviation of 1 is referred to as the standard normal distribution (also known as the Z distribution) (the green curves in the plots to the right). It is frequently referred to as the bell curve since the probability density graph resembles a bell.

solution:

The bounds of the confidence interval are given as follows:

In which:

is the sample mean.

z is the critical value.

n is the sample size. is the standard deviation for the population.

The parameters for this problem are given as follows:

Hence the lower bound of the interval is of:

800 - 200 x 1.96/square root of 55  = 747.

The upper bound of the interval is of:

800 + 200 x 1.96/square root of 55  = 853.

The sampling error for a sample size of 120 is calculated as follows:

200 x 1.96/square root of 120 = $35.78.

To learn more about the z-distribution from the given link

brainly.com/question/4079902

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1 year ago
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Answer:

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Step-by-step explanation:

Both are multiplication and in multiplication you can swap the factors and get the same answer every time.

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2 years ago
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