Solve the initial value problem.
= 
+ x, x > 0; y(1) = 2
A. y = - 
+ 
+ 2
B. y = - 
+ 
C. y = 
+ 
D. y = 
+ 
- 
Answer: A
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Solve the formula for the stated variable.A = lw; solve for l
A. l = Aw
B. l = 
C. l = 
D. l = A - w
Choose the equivalent expression for the given expression.tan2x
A. sec2x - 1 B. 1 + csc2x C. 1 + sec2x D. csc2x - 1
Determine the indicated function.A rectangular garden is to be surrounded on three sides by a fence costing $5 per foot and on one side by a stone wall costing $20 per foot. Let x be the length of the side with the stone wall, and let y be the length of each of the other three sides. Express the cost C of enclosing the garden as a function of the length and width.
A. C(x, y) = 20x - 15y B. C(x, y) = (20x)(15y) C. C(x, y) = 15x + 20y D. C(x, y) = 20x + 15y
Graph the pair of parametric equations with the aid of a graphing calculator.x = 5 tan t, y = 3 sec t; -?/2 ? t ? ?/2 
A. 
B. 
C. 
D. 