Simplify. Assume variables represent nonnegative values.
A. xy
B. xy
C. x
D. xyz
Answer: A
Mathematics
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Evaluate the integral by using a substitution prior to integration by parts.
A. ln (10x + 10x2) + ln (x +1) + C B. xln (10x + 10x2) + ln (x +1) - 2x + C C. xln (10x + 10x2) + C D. ln (10x + 10x2) - 2x + C
Mathematics
Answer the question.What does the digit 7 mean in the number 189,247?
A. 7 ones B. 7 tens C. 7 thousands D. 7 hundreds
Mathematics
Solve and graph.5x - 2 ? -7 and 5x + 1 ? 21
A. [-1,4]
B. (-?, -1] ? [4, ?)
C. [4, ?)
D. [-1, ?)
Mathematics
Determine whether the statement is true or false.A triangle is also a quadrilateral.
A. True B. False
Mathematics