Use an identity to write the expression as a single trigonometric function or as a single number.
A. sin 9°
B. cot 9°
C. tan 9°
D. cos 9°
Answer: B
Mathematics
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Express the rational number as a terminating or repeating decimal number.
A. 0.
B. 0.
C. 0.
D. 0.7
Mathematics
Solve the triangle. 
A. A = 38.9°, B = 31.6°, C = 109.5° B. A = 109.5°, B = 31.6°, C = 38.9° C. A = 109.5°, B = 38.9°, C = 31.6° D. A = 38.9°, B = 109.5°, C = 31.6°
Mathematics
Solve the problem.The parking lot at a golf course has 90 cars in it. 40% of the cars are four-door. How many cars are four-door?
A. 360 cars B. 225 cars C. 23 cars D. 36 cars
Mathematics
Use both properties of equality to solve the equation.14 - 13x = -6x
A. -2 B. 2 C. 98 D. -98
Mathematics