For the given arithmetic series, what is Sn?a1 = 2, d = -5, and n = 12
A. -1224
B. -304
C. -306
D. -612
Answer: C
Mathematics
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Find the sum.4.2 + [(-4.1) + (-3.6)]
A. 3.7 B. 11.9 C. 4.7 D. -3.5
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Solve the following systems of linear equations using Gaussian elimination
11x + 5y = 33 3x + y = 5
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Using the variable x, write the interval as an inequality.
A. 7 ? x ? 3
B. x ? 
C. x < 
D. x > 
Mathematics
Perform the indicated operation. Simplify if possible.
- 
A. 
B. 
C. 
D. 
Mathematics