Convert 3.875×109 meters to kilometers. Express the answer to the exact decimal place.
Note: 1 kilometer is equal to 1,000 meters.
(1 point)
To convert meters to kilometers, divide the number of meters by 1,000.
3.875 x 10^9 meters = 3.875 x 10^9 / 1,000 = 3.875 x 10^6 kilometers
Convert 4.083×106 kilometers to meters. Express the answer to the exact decimal place.
Note: 1 kilometer is equal to 1,000 meters.
(1 point)
meters
To convert kilometers to meters, multiply the number of kilometers by 1,000.
4.083 x 10^6 kilometers = 4.083 x 10^6 x 1,000 = 4.083 x 10^9 meters
Ali’s farmhouse has a height of 2.307×108 meters. Convert the height to centimeters. Express your answer in scientific notation to the exact decimal place.
Note: 1 meter is equal to 100 centimeters.
(1 point)
centimeters
To convert meters to centimeters, multiply the number of meters by 100.
2.307 x 10^8 meters = 2.307 x 10^8 x 100 = 2.307 x 10^10 centimeters
Convert 3.875×109 meters to kilometers. Express the answer to the exact decimal place.
Note: 1 kilometer is equal to 1,000 meters.
(1 point)
km
To convert meters to kilometers, divide the number of meters by 1,000.
3.875×10^9 meters = 3.875×10^9 / 1,000 = 3.875×10^6 km
Alberto added two very small numbers using a calculator. The calculator displayed the number 6.13E−14. What is this number in scientific notation?(1 point)
×10−14
The number 6.13E-14 is already in scientific notation. It is equivalent to 6.13 × 10^(-14).
Dina computed the mass of 1,000 protons in grams. The calculator displayed the number 1.67E−21. What is the mass of 1,000 protons in scientific notation?(1 point)
1.67 ×
grams
The mass of 1,000 protons in grams, displayed in scientific notation, is 1.67 x 10^(-21) grams.
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
1.25×10−10 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
1.25 times 10 superscript negative 6 baseline by 2.5 times 10 superscript negative 4 baseline millimeters
1.25×10−5 by 2.5×10−3 millimeters
To convert meters to millimeters, multiply the number of meters by 1,000.
The width of the sticky note is 1.25 x 10^(-8) meters, so in millimeters, it would be 1.25 x 10^(-8) x 1,000 = 1.25 x 10^(-5) millimeters.
The length of the sticky note is 2.5 x 10^(-6) meters, so in millimeters, it would be 2.5 x 10^(-6) x 1,000 = 2.5 x 10^(-3) millimeters.
Therefore, the dimensions of the sticky note in millimeters are 1.25 x 10^(-5) by 2.5 x 10^(-3) millimeters.