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Answer

To convert from meters to millimeters, we can multiply the measurement by 1,000 since there are 1,000 millimeters in a meter.

For the width, 1.25×10^−8 meters, we multiply by 1,000 to convert to millimeters:
1.25×10^−8 × 1,000 = 1.25×10^−5 millimeters

For the length, 2.5×10^−6 meters, we multiply by 1,000 to convert to millimeters:
2.5×10^−6 × 1,000 = 2.5×10^−3 millimeters

Therefore, the dimensions in millimeters are 1.25×10^−5 by 2.5×10^−3 millimeters.

Question

The answer above was posted in response to the following question.

Kendra finds the dimensions of a sticky note. She uses a meter stick to determine that the dimensions are 1.25×10^−8 meters wide by 2.5×10^−6 meters long. Use scientific notation to write the dimensions in millimeters.

1.25×10^−11 by 2.5×10^−9 millimeters

1.25×10^−10 by 2.5×10^−8 millimeters

1.25×10^−5 by 2.5×10^−3 millimeters

1.25×10^−6 by 2.5×10^−4 millimeters

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