Use half-angle formulas to find the exact value for the following:
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
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Use the quadratic formula to find the exact solutions.x2 + 10x = -16
A. -2, 8 B. -2, -8 C. -8, 2 D. 2, 8
For the given polar equation, write an equivalent rectangular equation.r2 + 2r2sin ? cos ? = 441
A. x + y = ± 21 B. x + y = 21 C. x2 + y2 = 441 D. x2 + 3y2 = 441
Solve the problem.A town has a population of 30,000 people and is increasing by 10% every year. What will the population be at the end of 5 years?
A. 48,315 people B. 45,000 people C. 18,315 people D. 43,923 people
Solve the problem.A company finds that consumer demand quantity changes with respect to price at a rate given by 
Find the demand function if the company knows that 829 units of the product are demanded when the price is $5 per unit.
A. D(p) = 
+ 829
B. D(p) = 
+ 229
C. D(p) = 
+ 229
D. D(p) = 
+ 829