Use Cramer's Rule (if applicable) to solve the system of equations.
A. {(-7, 2)}
B. {(2, 7)}
C. {(7, 2)}
D. {(-2, -7)}
Answer: B
Mathematics
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Illustrate and find the product by the indicated method.Use repeated addition on your calculator to find 6 × 458.
A. 458 × 458 × 458 × 458 × 458 × 458 = 2748 B. 458 + 458 + 458 + 458 + 458 + 458 = 2748
Mathematics
Divide.
A. 
+ 
i
B. 
+ 
i
C. - 
- 
i
D. - 
- 
i
Mathematics
Solve the problem.Sven can type 51 words per minute. How many words would he type in 
hour (40 minutes)?
A. 34 words B. 1360 words C. 77 words D. 2040 words
Mathematics
Simplify.3 ? (5 + 3)2 - 2 ? (6 - 4)2
A. 184 B. 560 C. 760 D. 316
Mathematics