Express the number in terms of i.4 - 
A. 4 - 7i
B. 4 + i
C. 4 - i
D. -3i
Answer: C
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Match the given function to its graph.1) y = -2 sin (
x)2) y = -2 sin (
x)3) y = -2 cos (
x)4) y = -2 cos (
x)A)B)
?
height="200" width="200" />C)D)
?
A. 1B, 2D, 3A, 4C
B. 1A, 2C, 3D, 4B
C. 1A, 2C, 3B, 4D
D. 1C, 2A, 3D, 4B
Solve the right triangle using the information given. Round answers to two decimal places, if necessary. 
a = 4, A = 30°; Find b, c, and B.
A. b = 6.93 c = 9 B = 70° B. b = 6.93 c = 9 B = 60° C. b = 6.93 c = 8 B = 60° D. b = 6.93 c = 8 B = 70°
Melissa knew that if she flunked mathematics she would be ineligible to play in her team's last five basketball games. When she found out that one of her classmates had been able to change someone else's grade on the school computer, she had this same person change her math grade from F to C. This example of computer abuse was: ?
A. falsifying information B. pirating software C. stealing funds D. modifying the hardware E. all of these choices
Translate the problem to a system of equations, then solve using Cramer's Rule.The sum of a student's three scores is 218. If the first is 22 points more than the second, and the sum of the first two is 14 more than twice the third, what was the first score?
A. 46 B. 68 C. 86 D. 64