Evaluate.5 sin2 300° + csc2 150° - sec2 30°
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem by integration.Under specified conditions, the time t (in min) required to form x grams of a substance during a chemical reaction is given by 
Find the equation relating t and x if x = 0 g when 
A. t = 
ln 
- 
ln 
B. t = 
ln 
+ 
ln 
C. t = 
ln 
+ 
ln 
D. t = 
ln 
- 
ln 
Mathematics
Use the discriminant to determine the number and type of solutions of the equation.8x2 = -3x - 4
A. two complex but not real solutions B. two real solutions C. one real solution
Mathematics
Find an equation for the hyperbola described.Vertices (
, -3) and (- 
, -3); asymptotes 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Evaluate the expression.165/4
A. 512 B. 256 C. 128 D. 32
Mathematics