Find all angles in [0°, 360°) that satisfy the equation.
sec 2? = 2
A. {0°, 120°, 180°, 240°}
B. {30°, 90°, 150°, 270°}
C. {15°, 165°, 195°, 345°}
D. {105°, 165°, 285°, 345°}
Answer: C
Mathematics
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Use the quadratic formula to solve the equation.4m2 + 12m + 4 = 0
A. 
B. 
C. 
D. 
Mathematics
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Mathematics
Describe the graph of the equation as either a circle or a parabola with a horizontal axis of symmetry.(x - 2)2 + y2 = 16
A. The graph is a circle. B. The graph is a horizontal parabola.
Mathematics
Perform the indicated operation. Write the result in the form a + bi.
? 
A. -21i B. 21i C. 21 D. -21
Mathematics