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USPshnik [31]
2 years ago
15

How do you find the sale's price for a sneaker that is normally sold at $150 but is now being sold at a 23% discount?

Mathematics
1 answer:
Alex2 years ago
6 0
You multiply $150 times 23%
or .23
this equals 34.5 which is the amount you will be taking off (the discount)
so then you subtract 150-34.5 which equals $115.50
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expeople1 [14]

a) 4:3 so 4+3= 7

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final answer : 8

b) 3×8 = 24

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3 years ago
A manager records the repair cost for 4 randomly selected stereos. A sample mean of $82.64 and standard deviation of $14.32 are
zysi [14]

Answer:

CI = (70.861 , 94.418)

Step-by-step explanation:

In order to determine the 90% confidence interval you use the following formula (for a population approximately normal):

CI=(\overline{x}-Z_{\alpha/2}\frac{\sigma}{\sqrt{n}},\overline{x}+Z_{\alpha/2}\frac{\sigma}{\sqrt{n}})    (1)

\overline{x}: mean = 82.64

σ: standard deviation = 14.32

n: sample = 4

α: tail area = 1 - 0.9 = 0.1

Z_α/2 = Z_0.05: Z factor =  1.645

You replace these values and you obtain:

Z_{0.05}(\frac{14.32}{\sqrt{4}})=(1.645)(\frac{14.32}{\sqrt{4}})=11.778

The confidence interval will be:

CI=(82.64-11.778,82.64+11.778)=(70.861,94.418)

The 90% confidence interval is (70.861 , 94.418)

6 0
3 years ago
jake is hiking a trail that leads to the top of a canyon. The trail 4.2 miles long, and jake plans to stop for lunch after he co
Ksivusya [100]
The answer will be 2.2 miles

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3 years ago
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Slav-nsk [51]

Answer:

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b) Continuous Variable

Step-by-step explanation:

We are given the following in the question:

Discrete and Continuous:

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Since the number of shots made will always be expressed in whole numbers and the number of shots made will counted and not measured. Thus, number of free dash throw attempts before the first shot is made. is a discrete variable.

(b) The distance a baseball travels in the air after being hit.

The distance is a continuous variable as its value can be expressed in decimals. Also distance is always measured and not counted. Thus, distance a baseball travels in the air after being hit is a continuous variable.

4 0
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V=PiR^2H/3

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3 0
3 years ago
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