Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 tan t, y = 2 sec t; 0 ? t ? 2?
A. 
+ 
= 1; for x in -? < x < ?
B. y = 2
; for x in -? < x < ?
C. y = x2 - 9; for x in -3 ? x ? 3
D. 
- 
= 1; for x in -? < x < ?
Answer: D
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Evaluate the function for the given value of x.f(x) = -2x - 2 , x = 6
A. f(6) = -10 B. f(6) = 14 C. f(6) = -16 D. f(6) = -14
Write a mathematical expression for the word phrase.The ratio of -11 to 83
A. 
B. -11 + 83
C. -11(83)
D. 
From the simplex tableau find the basic solution and determine if it is optimal.
What will be an ideal response?
Write a system of inequalities that describes the possible solutions to the problem.Matt is going to invest no more than $4000 into two accounts earning 2% and 4% simple interest. He would like the accounts to earn at least 
after one year. He wants to invest 
or less in the account earning 4% simple interest. Write a system of inequalities to describe this situation and solve by graphing.
A. x + y < 4000 0.02x + 0.04y > 100 y < 2500 x > 0 y > 0 B. 2x + 4y ? 4000 0.02x + 0.04y ? 100 x ? 2500 x ? 0 y ? 0 C. 2x + 4y ? 100 0.02x + 0.04y ? 4000 x ? 2500 x ? 0 y ? 0 D. x + y ? 4000 0.02x + 0.04y ? 100 y ? 2500 x ? 0 y ? 0