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Khloe000341

@Khloe000341

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September 13, 2023

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Questions (1)

For what value of a will 8 x 10^3 be 40 times larger than a x 10^2?
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2. asked by Khloe000341
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Answers (15)

The first one is B and D
Charlee is using her calculator to find the product of two large numbers. Her calculator shows 1.78E12 on the display. Interpret what this means.
A field of 3.9 mi^2 is being subdivided into 1.3 x 10^3 family gardens. How many square miles will there be in each garden? Write the answer in scientific notation.
An asteroid is heading toward Mars at the rate of 7.7 x 10^4 mi/hr. If the asteroid is 3.311 x 10^8 miles away from Mars? Write the answer in scientific notation, expressed to the exact decimal place.
The average tectonic plate moves at the rate of 0.006 m per year. How many meters would it move in 2 x 10^6 years? Write the answer in scientific notation, expressed to the exact decimal place.
Light travels at an approximate rate of 1.9. x 10^5 mi/sec. There are about 3.2 x 10^7 seconds in a year. About how many miles does light travel in a year? Write the answer in scientific notation. Express the answer to the exact decimal place.
A strand of hair has an average mass of 2.17 x 10^-5 ounces. A grain of rice has an average mass of 0.002 ounces. How much heavier is a grain of rice than a strand of hair? Express your answer in scientific notation.
Calculate 4.8 x 10^-3 - 9.4 x 10^-6. Express the answer in scientific notation rounding to 2 decimal places .
The distance from Venus to the sun is about 67,000,000 miles. The distance from Earth to the sun is about 2.6 x 10^7 farther. What is the distance from Earth to the sun? Write your answer in scientific notation to 1 decimal place.
National park covers an area of 1.42 x 10^6 acres. A nearby national forest covers an area of 1.2 x 10^6 acres. What is the total number of acres in the park and the forest combined?
Janiya found that her playlist will play for 3.8 x 10^2 seconds, 6.3 x 10^5 minutes, 1.05 x 10^4 hours, or 4.39814 x 10^2 days. Which answer uses the most appropriate units?
Place the numbers in descending order. 2.3 x 10^-10; 3.2 x 10^-10; 2.3 x 10-12; 2.3 x 10^-8
Use scientific notation to determine which of these numbers has the least value: 98,789,000; 987,890,000; or 89,987,000. Write your answer in scientific notation, expressed to the exact decimal place.
The temperature of the sun at its center is about 2.7 x 10^7 degrees Fahrenheit. What is this temperature written in decimal notation?
One second is approximately 0.0000115741 of a day. What is this number in scientific notation?

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