Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 2 cot2 ?
B. -2 cot2 ?
C. 2
D. 0
Answer: B
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Solve the problem.Under certain conditions the wind speed S, in miles per hour, of a tornado at a distance d from its center can be approximated by the function 
where a is an atmospheric constant, and V is the approximate volume of the tornado, in cubic feet. Assume that a is 0.78. Find 
.
A. 
B. - 
C. 
D. 
Solve for x.4-x = 
A. x = 2
B. x = 
C. x = 
D. x = -2
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log
A. -30x B. 1000x C. log x -3 D. log x + 3
Provide an appropriate response.The supply and demand equations for a product are p = 
q + 20 and p = 200 - 
q, respectively, where q represents the number of units and p represents the price per unit in dollars. The equilibrium price is
A. $10. B. $20. C. $30. D. $40. E. $50.