Simplify the expression. Assume that all variables are positive when they appear.

A. x9
B. x
C. x7
D.


Answer: C

Mathematics

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Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.1 + 4 + 42 + ... + 4n - 1 = 

What will be an ideal response?

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Answer the question.What does the digit 9 mean in the number 890,236?

A. 9 hundred thousands B. 9 hundreds C. 9 ten thousands D. 9 thousands

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A. 32 pieces
B. 24 pieces
C.  piece
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