Find the exact value of the expression.tan (45° - 210°)
A. 2 + 
B. -2 - 
C. 2 - 
D. 
- 2
Answer: C
Mathematics
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Solve the problem.Determine a polynomial that represents the area of the figure. Leave ? in the answer.
A. 4?x2 + 9? B. 4x2 + 9 C. 4?x2 + 12?x + 9? D. 4x2 + 12x + 9
Mathematics
Write the number in scientific notation.A mountain's peak is 21,700 feet above sea level.
A. 2.17 × 104 B. 2.17 × 10-5 C. 2.17 × 106 D. 2.17 × 105
Mathematics
Use translations of one of the basic functions defined by y = x2, y = x3, y = 
, or y = 
to sketch a graph of y = f(x) by hand. Do not use a calculator.y = (x + 5)3 - 4
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the expression. Do not use a calculator.sin (-2?) + cos 
A. 1 B. -1 C. 0 D. -2
Mathematics