Evaluate the expression.
- 
A. -1719
B. -1803
C. 1719
D. -39
Answer: A
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Solve the problem.The average daily air temperature of a certain city can be modeled by the equation 
where x is time in days with x = 1 representing January 1, and A, B, and C are constants. Solve for x.
A. x = 
sin-1 
+ B
B. x = 
sin-1 
+ C
C. x = 
sin-1 
+ C
D. x = 
sin-1 
+ B
Find an equation for the parabola described.Focus at (1, -1); directrix the line x = -5
A. (x + 2)2 = 12(y + 1) B. (x + 1)2 = 12(y + 2) C. (y + 1)2 = -12(x + 2) D. (y + 1)2 = 12(x + 2)
Provide an appropriate response.True or false? The equation -x2 = - 121 has no real solutions. If false, give the solution or solutions.
A. True B. False; 11 and -11 C. False; 11 D. False; -11
Factor when possible.128x4 - 250x
A. (8x2 - 10)(16x2 + 25) B. 2x(64x - 5)(x2 + 20x + 25) C. 2x(4x + 5)(16x2 - 20x + 25) D. 2x(4x - 5)(16x2 + 20x + 25)