Perform the indicated operation.Subtract 48 from 68.91
A. 21.01
B. 116.91
C. 20.91
D. 21.41
Answer: C
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Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = -x2
A. 
B. 
C. 
D. 
Find possible value(s) of ? in the interval [0°, 360°) with the given trigonometric function value.sin ? = 
A. 60°; 300° B. 60°; 120° C. 150°; 210° D. 210°; 330°
Add or subtract as indicated. Simplify, if necessary.- 
+ 
A. - 
B. 
C. 
D. - 
Set the viewing rectangle of your graphing calculator to 
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = -6 + 1.6t/?,y1 = -3 + 1.6t/?x2 = -6 + 1.6t/?,y2 = 0.2 - 1.6t/?
A. V B. y C. t D. X