Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find sin(2?).
A. - 
B. 
C. 
D. - 
Answer: B
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Solve the problem.A chemist needs 190 milliliters of a 66% solution but has only 42% and 99% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 110 mL of 42%; 80 mL of 99% B. 70 mL of 42%; 120 mL of 99% C. 80 mL of 42%; 110 mL of 99% D. 120 mL of 42%; 70 mL of 99%
Find the sum, if it exists.-39 - 
- 
- 
- . . .
A. 8 B. - 273 C. - 312 D. Does not exist
Solve the problem. Use 3.14 for ?.A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius of 
How far does the skater go one time around the figure eight?
A. 21.98 ft B. 19.98 ft C. 43.96 ft D. 87.92 ft
Solve the system of equations by elimination.2x + 8y = -4812x + 2y = 80
A. (8, -8) B. (12, -12) C. (-2, 8) D. (-8, 8)