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Mariana [72]
2 years ago
5

The price of a Blu-Ray disc player is $175. With the sales tax at

Mathematics
1 answer:
Luba_88 [7]2 years ago
6 0

Answer:

$190.75

Step-by-step explanation:

$175 × 0.09 = $15.75

$175 + $15.75 = $190.75

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Answer:

False

Step-by-step explanation:

given that a race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 4.85 seconds with a standard deviation of 1.47 seconds.

Sample size n = 20

since population standard deviation is not known, we can use t critical value for finding out the confidence interval

df=19

t critical = 2.045

Margin of error = 2.045*\frac{s}{\sqrt{n} } \\=2.045*\frac{1.47}{\sqrt{20} } \\=0.6722

conidence interval = Mean±Margin of error

= (4.85-0.6722, 4.85+0.6722)\\= (4.1778, 5.5222)

The given confidence interval is (4.52, 5.18)

Hence the statement is false.

5 0
3 years ago
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Step-by-step explanation:

4 0
2 years ago
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quester [9]
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6 0
3 years ago
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Zielflug [23.3K]

Step-by-step explanation:

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3 years ago
If g(x) =3/2 x +4, what is the value of g(2)?
Otrada [13]

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g(2) = 3 +4

g(2) = 7

8 0
2 years ago
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