Simplify.
A. -1
B. 
C. 
D. - 
Answer: D
Mathematics
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Find the median of the following set of test score data: 55, 57, 60, 62, 65, 68, 71, 75, 77, 80, 81, 84, 87, 90, 92, 95, 98, 100.
a. 45.3 b. 77.6 c. 78.5 d. 81.3
Mathematics
Solve the system of linear equations. If the system has infinitely many solutions, describe the solution with an ordered triple in terms of variable z.x + y + z= 7x - y + 2z=72x + 3z=14
A. 
B. 
C. 
D. 
Mathematics
Find the first term and the common difference for the arithmetic sequence.S3 = 3, a3 = 4
A. a1 = -2, d = 3 B. a1 = -10, d = 2.67 C. a1 = -2, d = 2.67 D. a1 = -10, d = 3
Mathematics
Simplify.(-2m2z4)(3m3z2)
A. -6m5z6 B. -6mz6 C. -6mz5 D. -6m6z5
Mathematics