Express the number in scientific notation.9,800,000

A. 9.8 × 106
B. 9.8 × 107
C. 9.8 × 10-6
D. 9.8 × 10-7


Answer: A

Mathematics

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Solve the problem.Imagine there is a function for which f '(x) = 0 for all x. Does such a function exist? Is it reasonable to say that all values of x are critical points for such a function? Is it reasonable to say that all values of x are extreme values for such a function. Give reasons for your answer.

What will be an ideal response?

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Find the least common multiple.2a - 4,  a2 - 2a 

A. 2a2 - 2 B. 2a - 2 C. 2a2 - 4 D. 2a(a - 2)

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Solve the compound inequality and write the solution set using set-builder notation. Graph the solution set using a number line.x < 3 and x ? -1

A. {x ? -1}  

B. {x ? -1}  


C. {x < 3}


D. {x< 3}  

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Write the length of the line segment in lowest terms.

A.  in.
B.  in.
C.  in.
D.  in.

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