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Ne4ueva [31]
3 years ago
8

I NEED THE ANSWER ASAP.An architect is planning a triangular pool with the perimeter of 99 feet.If two sides measure 20 and 42,

respectively, what is the length of the missing side which is x?Write an equation to represent the situation, Then solve for x.PLEASE
Mathematics
1 answer:
Alla [95]3 years ago
3 0

Answer:

37 feet

Step-by-step explanation:

99 - (20+42) = 37

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It would be 8.5 because all you have to do is add 3 to 2.5 then you’ll get 5.5 then do that one more time.
7 0
3 years ago
An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maxim
Flura [38]

Answer:

The 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the population mean, when the population standard deviation is not provided is:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

The sample selected is of size, <em>n</em> = 50.

The critical value of <em>t</em> for 95% confidence level and (<em>n</em> - 1) = 49 degrees of freedom is:

t_{\alpha/2, (n-1)}=t_{0.05/2, 49}\approx t_{0.025, 60}=2.000

*Use a <em>t</em>-table.

Compute the sample mean and sample standard deviation as follows:

\bar x=\frac{1}{n}\sum X=\frac{1}{50}\times [1+5+6+...+10]=6.76\\\\s=\sqrt{\frac{1}{n-1}\sum (x-\bar x)^{2}}=\sqrt{\frac{1}{49}\times 31.12}=2.552

Compute the 95% confidence interval estimate of the population mean rating for Miami as follows:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

     =6.76\pm 2.000\times \frac{2.552}{\sqrt{50}}\\\\=6.76\pm 0.722\\\\=(6.038, 7.482)\\\\\approx (6.0, 7.5)

Thus, the 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

7 0
3 years ago
Can someone help, please ;)
8090 [49]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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vovangra [49]

Answer:

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Step-by-step explanation:

Even though A is a fraction it is also an integer (4)

6 0
2 years ago
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gavmur [86]

Answer:

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Step-by-step explanation:

412.50 x 12

412.50 is the mothly rental

12 are the month in a year

so it is 4950

8 0
4 years ago
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