Use Cramer's Rule, if possible, to solve the system of linear equations. 
A. (-5, -3)
B. (3, 5)
C. (5, 3)
D. (-3, 5)
Answer: C
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Describe a one-to-one correspondence between the given set and one of its proper subsets. For example, if we gave you the set {3, 5, 7, 9, 11, ...}, the nth term is 2n +1. You could then write the correspondence by matching the elements of {3, 5, 7, 9, 11, ...} with the elements of the subset {5, 7, 9, 11, 13, ...}. The general correspondence would match 2n + 1 with 2n + 3.{5, 6, 7, 8, ...}
A.
| 5, | 6, | 7, | 8, ..., | n + 4, | ... |
| ? | ? | ? | ? | ? |
| 4, | 5, | 6, | 7, ..., | n + 3, | ... |
B.
| 5, | 6, | 7, | 8, ..., | n + 4, | ... |
| ? | ? | ? | ? | ? |
| 6, | 7, | 8, | 9, ..., | n + 5, | ... |
C.
| 5, | 6, | 7, | 8, ..., | n + 4, | ... |
| ? | ? | ? | ? | ? |
| 6, | 7, | 8, | 9, ..., | n + 6, | ... |
D.
| 5, | 6, | 7, | 8, ..., | n + 5, | ... |
| ? | ? | ? | ? | ? |
| 4, | 5, | 6, | 7, ..., | n + 3, | ... |
Identify the number as prime, composite, or unit.24
A. Composite B. Unit C. Prime
Simplify the expression. Assume all variables represent nonnegative real numbers.x1/7 ? x6/7
A. x6/7
B. x
C. 
D. x6/49
Write an algebraic expression for the quantity. Let x represent the unknown value.Eight times the sum of a number and three.
A. 3x + 8 B. 8(x + 3) C. 8x + 3 D. 3(x + 8)