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3 years ago

Estimate the percent of the number. 86% of 82. • A. 83• B. 58• C. 72• D. 50

Mathematics

1 answer:

Tju [1.3M]3 years ago

7 0

Answer:

Step-by-step explanation:

82 x .86 = 70.52 Answer C. 72

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When testing the difference between two population means and the population variances are unknown and unequal, the degrees of fr

levacccp [35]

Answer: 34 degrees of freedom should be used to find the p-value of the test .

Step-by-step explanation:

Degrees of Freedom relates to the maximum number of independent values, that have independence to vary in the sample.

Given : When testing the difference between two population means and the population variances are unknown and unequal, the degrees of freedom are calculated as 34.7.

But degree of freedom must be an integer , so we find the greatest integer less than equal to the calculated degree of freedom.

i.e. [df]=[34.7]= 34

Thus , 34 degrees of freedom should be used to find the p-value of the test .

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4 years ago

5% times blank equals 2.5<br><br> NEED ASAP

lapo4ka [179]

Answer:

0.5

Step-by-step explanation:

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4 years ago

Read 2 more answers

For the function f(x) = 7/2x-16, what is the difference quotient for all nonzero values of h?

sergey [27]

Answer:

$\frac{f(x + h) - f(x)}{ h} = \frac{7}{2}$

Step-by-step explanation:

Given

$f(x) = \frac{7}{2}x - 16$

Required

The difference quotient for h

The difference quotient is calculated as:

$\frac{f(x + h) - f(x)}{ h}$

Calculate f(x + h)

$f(x) = \frac{7}{2}x - 16$

$f(x+h) = \frac{7}{2}(x+h) - 16$

$f(x+h) = \frac{7}{2}x+ \frac{7}{2}h- 16$

The numerator of $\frac{f(x + h) - f(x)}{ h}$ is:

$f(x + h) - f(x) = \frac{7}{2}x+ \frac{7}{2}h- 16 -(\frac{7}{2}x - 16)$

$f(x + h) - f(x) = \frac{7}{2}x+ \frac{7}{2}h- 16 -\frac{7}{2}x + 16$

Collect like terms

$f(x + h) - f(x) = \frac{7}{2}x -\frac{7}{2}x + \frac{7}{2}h- 16 + 16$

$f(x + h) - f(x) = \frac{7}{2}h$

So, we have:

$\frac{f(x + h) - f(x)}{ h} = \frac{7}{2}h \div h$

Rewrite as:

$\frac{f(x + h) - f(x)}{ h} = \frac{7}{2}h * \frac{1}{h}$

$\frac{f(x + h) - f(x)}{ h} = \frac{7}{2}$

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3 years ago

What standard form is y =x^3+2x^5-4

Mademuasel [1]

Answer:

hello :

the standard form is y =2x^5+x^3-4

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4 years ago

HELP!!! FINALS!! PLEASE HELP!!! Chandler, Jamal, Allison, and Cesar are given the following problem:

astra-53 [7]

Answer:

Step-by-step explanation:

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3 years ago

Estimate the percent of the number. 86% of 82. • A. 83• B. 58• C. 72• D. 50​

Estimate the percent of the number. 86% of 82. • A. 83• B. 58• C. 72• D. 50