Evaluate (if possible) the sine, cosine, and tangent of the real number.
?
?
A. 
corresponds to the point 
.
B.
corresponds to the point 
.
C.
corresponds to the point 
.
D.
corresponds to the point 
.?
?
E. Not possible
Answer: C
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Convert the measurement to the specified units.8 gallons to cups
A. 256 cups B. 64 cups C. 128 cups D. 32 cups
Use the reciprocal identities for the following problem. ? If tan ? = 5a, (a? 0) find cot ?. ?
A. 
B. 
C. 
D. 
E. 
Without solving, determine the character of the solutions of the equation in the complex number system.2x2 - 6x + 3 = 0
A. a repeated real solution B. two unequal real solutions C. two complex solutions that are conjugates of each other
Solve.The monthly cost of a certain long distance service is given by the linear function 
where C(t) is in dollars and t is the amount of minutes used in a month. Find and interpret C(190).
A. 15.45; it costs $15.45 to use 190 minutes of a certain long distance service in a month. B. 9.50; it costs $9.50 to use 190 minutes of a certain long distance service in a month. C. 16.45; it costs $16.45 to use 190 minutes of a certain long distance service in a month. D. 25.95; it costs $25.95 to use 190 minutes of a certain long distance service in a month.