Perform the indicated operation(s). Simplify if possible.
- 
A. x + 12
B. 
C. 
D. x - 2
Answer: C
Mathematics
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Use a grapher to graph the function.Two signals are seen on an oscilloscope as being at right angles. The equations for the displacement of these signals are 
Graph the figure that appears on the oscilloscope.
A. 
B. 
C. 
D. 
Mathematics
Find the number of subsets of the set.{12, 13, 14}
A. 7 B. 6 C. 8 D. 3
Mathematics
Given A = 56°, B = 65°, and c =8 use the Law of Sines to solve the triangle for the value of a. Round answer to two decimal places.
a. a= 8.27
b. a = 7.32
c. a = 7.57
d. a = 8.75
e. a = 7.74
Mathematics
Find the sum.-10 + 21
A. -11 B. -31 C. 11 D. 31
Mathematics