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September 1, 2014

Homework Help: Math Help

Posted by Nyla on Friday, September 14, 2012 at 5:41pm.

8. One nanometer is about 0.00000003937 of an inch. What is this number in standard notation?

a. 3.937 x 10^-8
b. 3.937 x 10^8
c. 3.937 z 10^-7
d. 3.937 x 10^7

9. What is 3/8 written as a decimal?

a. 2.33333...
b. 0.375
c. 0.33333...
d. 2.667

10. According to the 2010 census data, the populaton of Texas was about 2.5 x 10^7 people. The land area of Texas is about 2.6 x 10^5 m^2. What is the average number of people per square mile?

a. 0.96 x 10^2
b. 9.6 x 10^1
c. 0.96 x 10^35
d. 9.6 x 10^12

11. Based on the 2010 census, the population of Georgia was 9.6 x 10^6. Which state has a larger population?

a. Alaska: 7.1 x 10^5
b. New York: 1.9 x 10^7
c. Wyoming: 5.6 x 10^5
d. Idaho: 1.5 x 10^6

12. Which of the following is an example of a integer?

a. square root of 5
b. 3
c. 1/3
d. 0.8

15. What is the solution to 2 6/7 / 2/14

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