Find the surface area of a cylinder with a diameter of 10 and a height of 45. Use 3.14 for π. Round your answer to the nearest t
1 answer:
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Answer:
9.025 inches
Step-by-step explanation:
Let the length be represented by:
Where is the length of candle at time
is the rate at which the candle is burning.
And is the initial length of the candle.
As per the question statement, let us put the given values in the equation.
Subtracting (1) from (2):
Putting the value of in the equation (1):
Therefore, the equation becomes:
Now, we have to find the height of candle after 2 hours.
2 hours mean 120 minutes.
Therefore, the height of candle is <em>9.025 inches</em>.
Answer: 1.2703
Step-by-step explanation:
Given : Sample size : n= 17, which is a small sample (n<30), so we use t-test.
Significance level :
Then , Critical value :
Standard deviation:
The formula to find the margin of error : -
Hence, the error bound (EBM) of the confidence interval with a 90% confidence level.=1.2703