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Alex
3 years ago
7

Using the pencil, plot the point (-1,-5).

Mathematics
1 answer:
Crazy boy [7]3 years ago
6 0
Just remember the negative numbers go in this coordinate problem goes in the left -1 is the x axis and -5 is the y axis. Here I set it up so that you’d understand what’s going on

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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
Steve,Jerry and Ron were paid $29.25 to remove garden gnomes. They each worked 4 hours, exempt for Ron, who was 1 hour late. How
Alenkasestr [34]
Ron should receive $7.98. Jerry and Steve each worked for 4 hours, while Ron was one hour late, so he worked for 3 hours. Together, they worked for 4*2+3=11 hours, receiving $29.25 in total. Each hour should be paid 29.25/11=2.66 dollars. Ron worked for three hours, so he should receive 3*2.66=7.98 dollars. 
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3 years ago
Use anything, The first who get sit right gets brainliest
mixas84 [53]

Answer:

I think it would be 4/2 wich eaquals 1/2

Step-by-step explanation:

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3 years ago
What does 2/3 - 2/4 equal?<br> I need the steps on how to get the answer please!!
alina1380 [7]

\frac{2}{3} - \frac{2}{4}\\\\\frac{2}{3} - \frac{1}{2} = \frac{1}{6}

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

8 0
3 years ago
This box is a right rectangular prism. Its dimensions are 3 inches by 3 inches by 11 inches.
Makovka662 [10]

Answer:

Stot = 150 in2

Step-by-step explanation:

there is your anser

4 0
3 years ago
Read 2 more answers
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