A test sample of resistors provided the following test readings: 120, 113, 129, 118, 121,120, 115, 118, 120, 121, 124, 120, 119, 119, 121, 120, 123, 115, 120, 126. What is the mode of this set of data?
a. 115
b. 119
c. 120
d. 121
c. 120
Mathematics
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Match the quadratic function to the correct graph.y = 2(x + 3)2 - 4
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of y, or state that y is undefined.y = tan-1 
A. 
B. 
C. 
D. 
Mathematics
Factor the sum or difference of two cubes.x3 + 8
A. (x + 2)(x2 + 4) B. (x + 2)(x2 - 2x + 4) C. (x - 2)(x2 + 2x + 4) D. prime
Mathematics
Find the opposite (additive inverse) of the number.-13
A. 0
B. -13
C. 13
D. - 
Mathematics