Write the inequality.Write -10 ? x ? 10 as an inequality containing absolute value.
A. |x| ? 10
B. |x| ? 9
C. |x| ? 10
D. |x| ? 9
Answer: C
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Find the angle in degrees when given the trigonometric values. ? represents the unknown angle measure.csc ? = 1.6
A. 38.7° B. 34.0° C. 39° D. 34°
Perform the operation and write the result in the standard form.(-5 + 3i) + (7 + 5i)
A. 7 + 8i B. -2 + 8i C. 2 + 8i D. 2 + 13i
Establish the identity.
= 1 + sin ? cos ?
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Solve the problem.Car A (travelling north at 30 mph) and car B (traveling west at 20 mph) are heading toward the same intersection. Car A is 6 miles from the intersection when car B is 8 miles from the intersection. Find parametric equations that describe the motion of cars A and B. 
A. Car A: x = 0, y = 30t - 6; Car B: x = 8 - 20t, y = 0 B. Car A: x = 0, y = 20t - 8; Car B: x = 30t - 6, y = 0 C. Car A: x = -30t + 6, y = 0; Car B: x = 8 - 20t, y = 0 D. Car A: x = 20t - 8, y = 0; Car B: x = 0, y = 6 - 30t