Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.sec ? = - 
, sin ? > 0 Find tan 2?.
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.A retired couple has $130,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 5%. The rest they want to invest in AA bonds yielding 12% per year. How much should they invest in each to realize exactly $12,100 per year?
A. $80,000 at 12% and $50,000 at 5% B. $90,000 at 12% and $40,000 at 5% C. $80,000 at 5% and $50,000 at 12% D. $70,000 at 5% and $60,000 at 12%
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
+ 9
- 4
A. 26
B. -98
C. -26
D. 34
Solve the problem.Solve the formula V = 
?r2h + 
?hrR + 
?hR2 for r.
A. r = 
B. r = 
C. r = ±
D. r = 
Expand the expression using the Binomial Theorem.(2x - 1)4
A. (4x2 - 2x + 1)4 B. -16x4 + 32 x3 + 24x2 + 8x + 1 C. 16x3 - 32x2 + 24x - 8 D. 16x4 - 32x3 + 24x2 - 8x + 1