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Ronch [10]
3 years ago
8

CAN SOMEONE PLEASE HELP?! I DON'T GET THIS AT ALL!! WILL GIVE BRAINLIESTS!

Mathematics
2 answers:
butalik [34]3 years ago
6 0
4 to the ninth power, because basically you add the sums of the top variables, and you'll get 10^14. Then subtract 4^5 from that. Answer- 4^9
Georgia [21]3 years ago
6 0
I think the answer is 40to the power of 9
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Steve is painting the ceiling of a room. the ceiling is in the shape of a rectangle. he has enough paint to cover 198 square fee
Katena32 [7]

Answer:

Width = 9ft.

Length=22ft.

Step-by-step explanation:

4 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
(10 POINTS!) How would you write 1 cubic foot as a cubic measure?
Tema [17]

Answer:

1 cubic ft can also be 1728in3, or 0.03704 yd3

Step-by-step explanation:

To find the cubic feet of a square or rectangular shape, measure the length, width and height of the object in feet or inches. Once you have these three numbers, multiply them together to get the volume. If you measured in inches, divide your answer by 1728 to convert the measurement to feet.

8 0
3 years ago
Read 2 more answers
Anna had $54 in her purse. She bought a book for $26.34 and a book marker for $1.27. Anna’s mom then gave her $10 for completing
jekas [21]

Answer:

Anna has $36.39 dollars.

Step-by-step explanation:

All we have to do is subtract

54 - (26.34 + 1.27) =

54 - 27.61 =

36.39

So, the answer is 36.39

Hope this helps! :)

3 0
2 years ago
Read 2 more answers
When Marcus visited the corner store the first day he bought 3 sodas and 5 bag of chips for a total of $4.05. On the second day
suter [353]

Answer:

a soda cost .65 and chips cost 1.3

Step-by-step explanation:

i hope this helps

7 0
3 years ago
Read 2 more answers
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