An astronaut drops a rock into a crater on the moon the distance d(t), in meters, the rock travels after T seconds can be modele
d by the function d(t)= .8t^2.what is the average speed in meters per second of the rock between five and 10 seconds after it was dropped
1 answer:
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Answer:
Angle 5
Angle 8
Step-by-step explanation:
measure less than the measure of Angle 1.
Answer:
The 99% confidence interval is between 62.36%(lower bound) and 89.64%(upper bound).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
A sample of 65 students from the freshmen class is used and a mean score of 76% correct is obtained.
This means that
99% confidence level
So , z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:
The upper limit of this interval is:
0.6236*100 = 62.36%
0.8964*100 = 89.64%
The 99% confidence interval is between 62.36%(lower bound) and 89.64%(upper bound).