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Taya2010 [7]
3 years ago
5

your family is driving to the beach. you travel 200kilometers in the first two hour. during the next hour you stop for lunch and

only travel 25 kilometers. What is your average speed?
Mathematics
1 answer:
ziro4ka [17]3 years ago
4 0

Answer:

8

Step-by-step explanation:

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Im having trouble figuring out the missing length and solving this, can I have some help?
belka [17]
I think the answer is 17
8 0
2 years ago
I don’t know how to do it, please teach me !!!
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

#SPJ1

5 0
1 year ago
#13 please help I don’t know how to do it
Kruka [31]
2x+5x-4=31
7x-4=31
7x=35
X=5

ST=5x-4= 5.5-4=25-4=21
8 0
3 years ago
Please help me I’m so desperate
steposvetlana [31]
I think the answer is 127.4
6 0
2 years ago
Describe, with examples of your own, when you would use long division and synthetic division and how to check polynomial divisio
puteri [66]
You use long division when you divide polynomial by other polynomials. You use synthetic division to divide polynomials by binomials of the form (x-k).
6 0
3 years ago
Read 2 more answers
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