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mars1129 [50]
3 years ago
12

The front of Josh’s roof is shaped like a triangle. It has a base of 100 feet and a height of 15 feet. What is the area of Josh’

s roof
Mathematics
2 answers:
Stells [14]3 years ago
7 0

Answer:

750

Step-by-step explanation:

mario62 [17]3 years ago
6 0

Answer:

750 feet^2

Step-by-step explanation:

Area of triangle = 1/2bh

(1/2)(100)(15)

750 feet^2

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Marysya12 [62]

Step-by-step explanation:

-0.45 = 9/20

2.77= 2 7/9

5.55  = 5 5/9

5 0
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The different of anumber and 12
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Five divided by the difference of a number and 12 equals the quotiene of 10 and the sum of the number and five
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LuckyWell [14K]

Answer:

b

Step-by-step explanation:

6 0
2 years ago
Extreme cold and hot temperatures are known to affect the operation of electronic components. Winter is approaching and you are
Musya8 [376]

Answer:

A 95% confidence interval for the true mean minimum temperature that will damage an iPod is between 2.55°F and 7.45°F

Test statistic(Z) = 2.31

P-value = 0.0104

Step-by-step explanation:

Step 1

Null hypothesis: The average damaging temperature of nine iPods is 5°F

Alternate hypothesis: The average damaging temperature of nine iPods differs from 5°F

Step 2

Mean=5°F, Sd=3, df=n-1=9-1=8

The t-value corresponding to 8 degrees of freedom and 95% confidence level (5% significance level) is 2.306

Confidence Interval(CI) = (mean + or - t×sd/√n)

CI = (5 + 2.306×3/√8) = 5 + 6.918/2.828= 5+2.45=7.45°F

CI = (5 - 2.306×3/√8) = 5-2.45 = 2.55°F

Z = (sample mean - population mean)/(sd÷√n) = (5-2.55)/(3÷√8) = 2.45/1.061 = 2.31

Step 3

Using the standard distribution table, the cumulative area to the left of Z = 2.31 is 0.9896

P-value = 1 - 0.9896 = 0.0104

Step 4

Conclusion: A 95% confidence interval for the true mean minimum temperature that will damage an iPod is between 2.55°F and 7.45°F

7 0
3 years ago
Which of the following are equivalent
Nataly_w [17]
Where’s the question?
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2 years ago
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