Use back-substitution to solve the system of linear equations.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Rewrite the statement using the if...then connective. Rearrange the wording or words as necessary.I'll leave when he arrives.
A. If I leave, then he will leave. B. If he arrives, then I'll leave. C. If I will leave, then he'll arrive. D. I'll leave when he arrives.
Mathematics
Solve the problem.The numbers 1 through 13 are each written on the same size sheet of paper and placed in a bag. You then select one sheet of paper at random from the bag. What is the probability of choosing a 7 from the bag?
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator. Assume all variables have nonzero values.
A. 
B. 
C. 
D. 
Mathematics
Multiply.0.02 × 0.9
A. 0.18 B. 1.8 C. 0.018 D. 0.0018
Mathematics