1. C, The vector will not change direction but will increase in magnitude.
2. C, 56 ft lbs
3. C, (-2,-3)
4. A, u = -4 sqrt 41/41 i - 5 sqrt 41/41 j
5. A, 56
6. C, 11.4 ft/sec
7. Do not copy my exact answer please (: They are equal. You know because if you take the points of each segment and subtract them, you will get the same points for both segments.
8a. A, (-10,-16)
8b. D, 2 sqrt 89
9a. C, (-14,-21)
9b. B, 7 sqrt 13
10a. C, (-18,-26)
10b. B, 10 sqrt 10
11. B, 5,144 degrees
12. A, 173 degrees
13. C, (1/6, -1/5)
14. D, 163 mph
15. C, 10j
16. D, 2 sqrt 3
17. A, 98.1 degrees
18. Do not copy my exact answer please (: The angle between the two vectors is 26.75 degrees.
In a statistical test, the null hypothesis to be made is
that the sample proportions do not have any significant differences, which
means an equal distribution. This is only rejected when the estimate is equal
or less than 0.95. But since in this case it is >0.95, so therefore the null
hypothesis is not rejected. Therefore:
