Use the information given about the angle ? to find the exact value of the indicated trigonometric function.sin ? = 
, tan ? > 0Find cos 
.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the directrices of the ellipse.9x2 + 4y2 = 36
A. y = ± 
B. y = ± 
C. x = ± 
D. x = ± 
Mathematics
Solve the problem.As part of her retirement savings plan, Patricia deposited $200 in a bank account during her first year in the workforce. During each subsequent year, she deposited $30 more than the previous year. Find how much she deposited during her twentieth year in the workforce. Find the total amount deposited in the twenty years.
A. $800; $20,000 B. $770; $19,400 C. $800; $10,000 D. $770; $9700
Mathematics
This frequency table gives the distribution of ages of 100 people in a small town.
How many people are:30 years of age or older
A. 58 B. 64 C. 22 D. 42
Mathematics
Add or subtract as indicated.
+ 
A. - 
B. 
C. - 
D. 
Mathematics