Evaluate the sum using the given information.x1 = 2, x2 = 4, x3 = 5, x4 = 0, and?x = -0.3; f(x) = 3x2 - x
A. -36.2
B. -148.8
C. 5.193
D. -37.2
Answer: D
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Find the slope of the line through the given pair of points, if possible. Based on the slope, indicate whether the line through the points rises from left to right, falls from left to right, is horizontal, or is vertical.(2.5, -4.2) and (0.3, -3.9)
A. 
; rises
B. - 
; falls
C. - 
; falls
D. 
; rises
Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = -3x
A. x-axis B. y-axis C. origin D. x-axis, y-axis, origin E. none
Solve the problem.Light bulbs are often wired so that electricity can flow through either bulb, as illustrated in the accompanying figure. 
In this way, if one bulb burns out, the other bulb still works. If two light bulbs have resistances T and S,their combined resistance R is R = 
Evaluate the formula when T = 200 and S = 250. Round to the nearest hundredth.
A. R = 0.01 B. R = 166.67 C. R = 55.56 D. R = 111.11