A local Mall covers an area of 1.42 ×10^6 acres. A nearby Walmart covers an area of 1.2×10^6 acres. What is the total number of acres in the Mall and the Walmart combined?
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1 point
15.5 x 10^6
2.62 x 10^12
2.62 x 10^6
7. A strand of hair has an average mass of 2.17×10−5 ounces. A grain of rice has an average mass of 0.002 ounces. Which is heavier?
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1 point
hair
rice
they are the same
8. Express the mass of a strain of hair in Decimal Notation, if the scientific Notation is 2.17 x 10^-5
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1 point
0.00217
0.217
0.0000217
9. The average parent moves at a rate of 0.006 meters when doing something you want them to do quickly. How many meters will the average parent move in 2 x 10^6 years if you want them to hurry up? (This is a funny one as my child fusses at me frequently for not moving fast enough!)
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1 point
1.2 x 10^4
1.2 x 10^6
1.2 x 10^8
10. Which of the following is the correct way for a calculator to show a Scientific Notation answer?
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1 point
2.5EEEE
2.9EE10
3.8E9
1. The total number of acres in the Mall and the Walmart combined is 2.62 x 10^6 acres (option C).
2. A grain of rice is heavier than a strand of hair.
3. The mass of a strain of hair in Decimal Notation is 0.0000217.
4. The average parent will move 1.2 x 10^4 meters in 2 x 10^6 years if you want them to hurry up (option A).
5. The correct way for a calculator to show a Scientific Notation answer is 2.5 x 10^3 (option B).