Find all values of ? in [-4?, 4?] satisfying each of the following equations. sin ? = 1
A. ? = - 
, - 
, 
B. ? = -3?, -?, ?, 3?
C. ? = - 
, - 
,
D. ? = -4?, -2?, 0, 2?, 4?
Answer: C
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List the indicated feature of the figure.The faces of
A. A, B, C, D, E, F B. AB, AE, AF, BE, BC, CD, CF, DE, DF C. ABCF, AEDF, ABE, CFD, BCDE D. Cannot be identified
Solve the problem.The magnitude and direction of two forces acting on an object are 35 pounds, 
, and 55 pounds, 
respectively. Find the magnitude and the direction angle of the resultant force. Round the magnitude to the nearest hundredth of a pound and the direction angle to the nearest tenth of a degree.
A. 
= 65.19; ? = -7.5°
B. 
= 57.04; ? = -23.6°
C. 
= 43.30; ? = 2.7°
D. 
= 49.17; ? = -11.3°
Use the method of natural frequencies to find the indicated probability.Some employers use lie detector tests to screen job applicants. Lie detector tests are not completely reliable. Suppose that in a lie detector test, 67% of lies are identified as lies and that 13% of true statements are also identified as lies.A company gives its job applicants a polygraph test, asking "Did you tell the truth on your job application?". Suppose that 89% of the job applicants tell the truth during the polygraph test. What is the probability that a person who fails the test was actually telling the truth?
A. 0.13 B. 0.611 C. 0.389 D. 0.637
Factor completely, if possible.6pq4 - 6pr4
A. 6p(q2 + r2)(q + r)(q - r) B. (6pq2 + pr2)(pq2 - pr2) C. (6pq2 + 6pr2)(6pq2 - 6pr2) D. 6p(q2 + r2)(q2 - r2)