Answer:
z' (-9,2)
Step-by-step explanation:
I recomend using desmos to show the relashinship
If you don't want to, thwn do this
Preimage
Since we are finding z, we only use the final cordinates
z'=(-9,2)
Answer:
4.8 hr.
Step-by-step explanation:
Let h = time traveling 200 mi
125/3 = 200/h
125h = 600
h = 4.8 hr.
The mean of the estimates is seconds, and the standard deviation of the sample is about . Then the test statistic is
where is the mean under the null hypothesis. So
We go on to find
so the difference is statistically significant and you reject the null hypothesis.