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2 years ago

Solve the formula for h. Surface area of a cylinder: S=2πr2+2πrh

Mathematics

1 answer:

Natasha2012 [34]2 years ago

7 0

I hope this helps you

h=S-2pi.r^2/2pi.r

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How do I find the quotient for 42.6 ÷ 0.07

OLga [1]

Answer:

Step-by-step explanation:

42.6 divided by 0.07 is 608.571428

Regular division.

5 0

2 years ago

A 90% confidence interval for the mean height of students

Westkost [7]

Answer:

$ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635$

And the best answer on this case would be:

b) m = 4.635

Step-by-step explanation:

Let X the random variable of interest and we know that the confidence interval for the population mean $\mu$ is given by this formula:

$\bar X \pm t_{\alpha/2} \frac{s}{\sqrt{n}}$

The confidence level on this case is 0.9 and the significance $\alpha=1-0.9=0.1$

The confidence interval calculated on this case is $60.128 \leq \mu \leq 69.397$

The margin of error for this confidence interval is given by:

$ME =t_{\alpha/2} \frac{s}{\sqrt{n}}$

Since the confidence interval is symmetrical we can estimate the margin of error with the following formula:

$ME = \frac{Upper -Lower}{2}$

Where Upper and Lower represent the bounds for the confidence interval calculated and replacing we got:

$ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635$

And the best answer on this case would be:

b) m = 4.635

4 0

2 years ago

Find the difference: (6y3 + 17y − 3) − (4y3 − 11y + 9)

earnstyle [38]

(6y3 + 17y − 3) − (4y3 − 11y + 9)
= 6y3 + 17y − 3 − 4y3 + 11y - 9
= 2y3 + 28y - 12

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2 years ago

In a statistics class, students were asked how many siblings they have. The mean number of siblings for the class is 3.08 with a

Rom4ik [11]

Answer:

Step-by-step explanation:

YEAH BOY

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2 years ago

Is the relation a function? O Yes O No O Cannot be determined

VMariaS [17]

Answer:

is the relation a function

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2 years ago