Answer:
A) 33
B) 58
Step-by-step explanation:
A is 33 because supplementary angles add up to 180 in total. 180 - 147 = 33, so its supplementary angle would be 33 degrees.
B is 58 because complementary angles add up to 90 in total. 90 - 32 = 58, so the complementary angle would be 58 degrees.
Answer:
c]
Step-by-step explanation:
To find the average speed in miles per hour, you will create a rate using the number of miles to the number of hours in 45 minutes.
54 miles in 0.75 hours (45 minutes)
To make this a unit rate or miles per hour, divide the number of miles by the time.
54/0.75 = 72 mph
The train traveled an average speed of 72 mph.
I have another total loan payment formula (see attached):
Total = rate * principal * # of payments / (1-((1 + rate)^-n))
Total = .005 * 15,000 * 60 / (1- ((1.005)^-60)
Total = 4,500 / (1 -0.7413721962)
Total = 4,500 / 0.2586278038
Total = 17,399.52
I know that is NOT one of the answers but I am sure of the formula and the calculations. I hope this helps.
Considering that we have the standard deviation for the sample, the t-distribution will be used, and the critical value is t = 2.6682.
<h3>When should the t-distribution and the z-distribution be used?</h3>
- If we have the standard deviation for the sample, the t-distribution should be used.
- If we have the standard deviation for the population, the z-distribution should be used.
In this problem, σ is not known, hence we get the standard deviation of the sample from the histogram and the t-distribution is used.
Using a t-distribution calculator, considering a <em>confidence level of 99%</em> and 56 - 1 = <em>55 df</em>, the critical value is t = 2.6682.
More can be learned about the t-distribution at brainly.com/question/16162795