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rodikova [14]
3 years ago
5

When purchased, a plastic beach ball is deflated and packaged flat. The package states that when inflated to its maximum capacit

y, the radius of the inflated ball is 6.5 inches. To the nearest cubic inch.
How much air will occupy the space contained by the inflated beach ball? Use 3.14 to approximate.

In your final answer, include your calculations.
Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0
V=43πr3=43·π·6.53≈1150.34651 or rounded 1150.35
pickupchik [31]3 years ago
3 0
V=43πr3=43·π*6.53≈1150.34651

<span>When rounded: 1150.35

</span><span>If I managed to help you, please make sure to mark my answer as the "Brainliest" answer. Thanks! :)</span>
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A random sample of 12 recent college graduates reported an average starting salary of $54,000 with a standard deviation of $6,00
Marianna [84]

Answer: a.) $50188 to $57812

Step-by-step explanation: <u>Confidence</u> <u>Interval</u> (CI) is an interval of values in which we are confident the true mean is in.

The interval is calculated as

x ± z\frac{s}{\sqrt{n} }

a. For a 95% CI, z-value is 1.96.

Solving:

54,000 ± 1.96.\frac{6000}{\sqrt{12} }

54,000 ± 1.96\frac{6000}{3.464}

54,000 ± 1.96*1732.102

54,000 ± 3395

This means the interval is

50605 < μ < 57395

<u>With a 95% confidence interval, the mean starting salary of college graduates is between 50605 and 57395 or </u><u>from 50188 to 57812$.</u>

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b. The mean starting salary for college students in 2017 is $50,516, which is in the confidence interval. Therefore, since we 95% sure the real mean is between 50188 and 57812, there was no significant change since 2017.

4 0
3 years ago
HELP NOW! RIGHT ANSWER=BRAINLIEST<br> EXCUSE NAIL POLISH!!!!‍
Nutka1998 [239]

Answer:

60

Step-by-step explanation:

6% of 250 = 15 = 250 * 0.06

30% of 250 = 75 = 250 * 0.7

75-15=60

4 0
2 years ago
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enot [183]
The answer is simply 12. Hope i have helped :)

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4 years ago
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What is a decimal for 8/24
lesya [120]
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6 0
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-38--25 +25-50 solve​
adoni [48]

Answer:

<h2>-38</h2>

Step-by-step explanation:

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Follow the PEDMAS order of operation

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4 years ago
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