21.20ft^3 - I think
Explanation
To get the area of a 2d object, you would need to do (1.5•1.5)•3.14
So (1.5 • 1.5) =2.25
2.25•3.14 = 7.065
Now that you have the base, you need to multiply it by the height.
7.065 • 3 = 21.195 ≈ 21.20ft^3
Correct me if I am wrong
The amount of time that is required for the microwave to heat the coffee is 34.4 seconds.
<u>Given the following data:</u>
- Microwave’s power = 900 Watts.
- Quantity of energy = 30,962 Joules.
<h3>How to calculate the time.</h3>
In order to determine the amount of time that is required for the microwave to heat the coffee, we would use this formula:
Making time the subject of formula, we have:
Substituting the given parameters into the formula, we have;
Time = 34.4 seconds.
Read more on time here: brainly.com/question/16894694
Focus on what the teacher says and read what's on the board
I haven’t see anything like that
The Confidence Interval of the given random sample survey is gotten as; CI = 13.755 ± 1.456
<h3>What is the confidence Interval?</h3>
We are given the hypotheses as;
Null Hypothesis; H₀: μ = 15
Alternative Hypothesis; Hₐ: μ ≠ 15.
where μ is the mean number of hours worked per week for all students at the college with part-time jobs.
We are told that it has a 95% confidence interval and degree of freedom of df = 25
From the t-table, the t-score = 2.06
The table gives us the standard error as 0.707 and sample mean of 13.755. Thus, we can find the confidence interval as;
CI = 13.755 ± 2.06(0.707)
CI = 13.755 ± 1.456
Read more about Confidence Interval at; brainly.com/question/17097944