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.

Note: 1 meter is equal to 1,000 millimeters.

(1 point)
Responses

1.25×10−11
by 2.5×10−9
millimeters
1.25 times 10 superscript negative 11 baseline by 2.5 times 10 superscript negative 9 baseline millimeters

1.25×10−5
by 2.5×10−3
millimeters
1.25 times 10 superscript negative 5 baseline by 2.5 times 10 negative cubed millimeters

1.25×10−10
by 2.5×10−8
millimeters
1.25 times 10 superscript negative 10 baseline by 2.5 times 10 superscript negative 8 baseline millimeters

1.25×10−6
by 2.5×10−4
millimeters

Answer 1

Multiply each value by 1000 (10^3) to convert meters to millimeters:

1.25×10^(-8) m = 1.25×10^(-8+3) = 1.25×10^(-5) mm
2.5×10^(-6) m = 2.5×10^(-6+3) = 2.5×10^(-3) mm

So the correct choice is: 1.25×10^(-5) by 2.5×10^(-3) millimeters.