Evaluate the expression for the given replacement values.-8y for y = -2.7
A. 21.6
B. -216
C. 216
D. -21.6
Answer: A
Mathematics
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Find the sum or difference.0.06 + (-6.971)
A. -7.031 B. -6.911 C. 0.418 D. -6.931
Mathematics
The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist.A is 2 × 1, and B is 1 × 2.
A. 2 × 2; 1 × 1 B. 1 × 1; 2 × 2 C. AB does not exist; 1 × 1 D. 2 × 2; BA does not exist.
Mathematics
Use the roster method to list the elements in the set.Integers greater than -7
A. {-6, -5, -4, -3} B. {-6, -5, -4, . . .} C. {-8, -9, -10, . . .} D. {-8, -9, -10}
Mathematics
Simplify the complex fraction.6 - 
A. 
B. 
C. 
D. - 
Mathematics