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amm1812
3 years ago
10

Find the value of 7!?

Mathematics
2 answers:
IgorC [24]3 years ago
7 0
You didn’t provide a question
Schach [20]3 years ago
5 0
The question isn’t clear, post the question so I could help :) !
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What is the value of y
Marat540 [252]
The answer is B. 55 degress
3 0
3 years ago
Read 2 more answers
Solve 9/10=z/8 . Round to the nearest tenth.
kompoz [17]
\boxed {Question}
\frac{9}{10} =  \frac{z}{8}

\boxed {Cross \  multiply}
10z = 8 \times 9

\boxed {Evaluate}
10z = 72
z = 72 \div 10
z = 7.2

\Longrightarrow \bf \ Answer \ : \ z = 7.2

4 0
3 years ago
Samantha earns $8 per hour at a candy store. She receives a 5% raise. What are her new hourly earnings?
d1i1m1o1n [39]
$8 x 5 = 40

40/100 = 0.4

$8 + 0.4 = $8.4

Therefore Samantha now earns $8.4 per hour.
4 0
3 years ago
Shopify has recently become Canada’s largest company. In the past 5 years, its stock price has climbed from $25 to $1000. If thi
iVinArrow [24]
1000-25= $975
975x5 = $4875 + $1000
= $5875.
3 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
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