Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 75°
A. -2 + 
B. -2 - 
C. 2 + 
D. 2 - 
Answer: C
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Decide whether the statement makes sense. Explain your reasoning.We will never be able to send our daughter to college. In order to have $100,000 in 20 years we would have to save at least $500 each month, That's more than we can afford.
What will be an ideal response?
Evaluate or simplify the following the expression.22 × 23
A. 32 B. 24 C. 12 D. 64
Find the exact value of the expression.cos 20° cos 40° - sin 20° sin 40°
A. 
B. 
C. 
D. 
Write the first five terms of the arithmetic sequence with the given first term a and common difference d.a = 4; d = 5
A. 4, 8, 12, 16, 20 B. 4, 9, 14, 19, 24 C. 9, 14, 19, 24, 29 D. 0, 4, 9, 14, 19