Use the graph to complete the identity.sin 3x cos 
x - cos 3x sin 
x = ? 
A. y = sin 
x
B. y = cos 
x
C. y = sin 
x
D. y = cos 
x
Answer: A
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Simplify the power of i.i-26
A. -1 B. -i C. 1 D. i
Indicate whether the graph represents a one-to-one function.
A. Yes B. No
Use the figure to answer true or false in the following problems
1. BH + HE = BE
2. ?BED and ?BEF are complementary.
3. ?BEF is a right angle.
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4. C is on AB
5. m?ABG +m?GBC =180°
6. E is the vertex of ?ABE .
Solve.The formula for converting Fahrenheit temperatures to Celsius temperatures is 
Use this formula to solve the problem. In a certain city, the average temperature ranges from 
to 
Celsius. Find an inequality that represents the range of Fahrenheit temperatures. If necessary, round to the nearest tenth of a degree.
A. 16.4° ? F ? 27.6° B. -18.4° ? F ? 17.6° C. -82.4° ? F ? -46.4° D. -50.4° ? F ? -14.4°