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April 23, 2014

Homework Help: i don't understand this math

Posted by Nyla on Wednesday, September 12, 2012 at 5:35pm.

1. Which of the following is greater than 4.3 x 10^9

a. 2.1 x 10^9
b. 3.2 x 10^9
c. 5.3 x 10^9
d. 7.4 x 10^8

2. Which of the following is less than 6.5 x 10^-5

a. 1.4 x 10^-3
b. 2.5 x 10^-4
c. 7.8 x 10^-5
d. 4.6 x 10^-6

3. According to the 2010 census, the population of Nebraska was 1.8 x 10^6 people. Which state had a smaller population?

a. California: 3.7 x 10^7
b. Rhode Island: 1.1 x 10^6
c. Texas: 2.5 x 10^7
d. Missouri: 6 x 10^6

4. Which is greater?

7.08 x 10^15 or 7.65 x 10^14 or 7.65 x 10^4

a. 7.08 x 10^15
b. 7.65 x 10^14
c. They are equal.
d. 7.65 x 10^4

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