3 years ago

Can someone please help me with this, this is my only try, please answer with the CORRECT answer.

Mathematics

2 answers:

olga_2 [115]3 years ago

5 0

The scale factor is 0.25 or 1/4 (fraction)

Vikentia [17]3 years ago

5 0

The scale factor is 0.25.

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(2.5×10−8)(9×10−10)<br><br> Express your answer in scientific notation.

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Answer: 2.25x $10^{-17}$

Scientific notation is used in science because the number can be vary from so much that using decimal is making it hard. The number expressed in $10^{x}$ form. Both number in the question is already in scientific notation. Then to multiply the number and keep it at scienfitic notation the calculation should be:

2.5 x $10^{-8}$ x 9 x $10^{-10}$ = 22.5 x $10^{-18}$ = 2.25x $10^{-17}$

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