Evaluate.-x2 - 6z for x = -2, z = -4
A. -20
B. 16
C. 20
D. -28
Answer: C
Mathematics
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Given the radius, r, of a circle, find the diameter; or given the diameter, d, of a circle, find the radius.d = 2.6 in.
A. r = 5.31 in. B. r = 1.3 in. C. r = 0.65 in. D. r = 4.082 in.
Mathematics
The histogram shows the scores of each participant in a game from a total of 100 participants. 
How many participants scored fewer than 60?
A. 43 participants B. 100 participants C. 81 participants D. 97 participants
Mathematics
Graph the inequality.x2 + y2 > 49
A. 
B. 
C. 
D. 
Mathematics
Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.cot ? = 
Find sin ?.
A. 
B. 
C. 
D. 
Mathematics