Find the angle between u and v in radians.u = -3i - 5j, v = 3i + 5j + 3k
A. 1.59
B. -1.10
C. 2.67
D. 2.03
Answer: C
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Solve the problem.On a test, Sunita has an x percent chance of correctly answering a question for which she has not studied. The chance that she will correctly answer a question for which she has studied is 6x. She is happy to see that both of the first two questions on the test are questions for which she has studied. The chance that she doesn't answer either of these questions correctly is (1 - 6x)2, where x is expressed as a decimal. For 
, evaluate the polynomial that results when this expression is multiplied.
A. 0.64 B. 0.76 C. 0.19 D. 0.16
Solve the problem. Be sure to make a diagram of the situation with all the given information labeled. ? A tree on one side of a river is due west of a rock on the other side of the river. From a stake 19 yards north of the rock, the bearing of the tree is S18.7°W. How far is it from the rock to the tree? Round to the nearest tenth of yards. ?
A. 7.9 yd B. 11.7 yd C. 6.4 yd D. 5.4 yd E. 4.0 yd
Evaluate the function.Given that f(x) = 
, find f(0.2).
A. 
? -1.3520
B. 
? -1.2748
C. 
? -0.65
D. 
? 1.2748
Simplify the expression.53 - (-9)2
A. 206 B. -66 C. 33 D. 44