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Alinara [238K]
3 years ago
15

Original Price of a computer $2,600.00 Tax:6.4%

Mathematics
1 answer:
Valentin [98]3 years ago
3 0
Answer:

The Sales Tax total would be $166.40
Add that with the original price,

Total Price is 2766.40
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Zanzabum

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6 times she can choose courses

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HELP PLEASE!! WILL MARK BRAINLIEST!!!!
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see below

Step-by-step explanation:

\frac{1}{x^{2} } +  \frac{2}{y}/ \frac{5}{x} -\frac{6}{y^2}

find common denominator and add the fractions in numerator and denominator:

1/x² + 2/y = y+2x²/x²y

5/x -6/y² =5y² -6x/xy²

(y+2x²)/x²y / (5y²-6x)/xy² change into multiplication

(y+2x²)/x²y * xy²/(5y²-6x)

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3 years ago
Experience raising New Jersey Red chickens revealed the mean weight of the chickens at
Nikolay [14]

Answer:

p-value = 0.1277

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⇒ Mean = \frac{4.41 +4.37+ 4.33+ 4.35 +4.30 +4.39 +4.36+ 4.38+ 4.40+ 4.39}{10}

⇒ Mean = 4.368

Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }

where, \bar{x} is mean of the distribution.

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Applying t- test:

Let out hypothesis is:

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H₁: μ ≠ 4.35

Now,

Here, μ = Population Mean = 4.35

\bar{x}= Sample Mean = 4.368

σ = Standard Deviation = 0.034

n = 10

t=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}} }

Putting all values we get, t = 1.6777 with (10 -1) = 9 degree of freedom.

Then the p-value at 99% level of significance.

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3 years ago
What are the x-intercepts of the function f(x)=0.5x^2+2x-6
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Answer:

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