Posted by **Esther** on Tuesday, October 23, 2012 at 11:08am.

10. From the 2010 census data, the population of Texas was about 2.5 x 107 people. Florida’s population was about 1.9 x 107. Idaho’s population was about 1.6 x 106. Which of the following statements is true?

a)Idaho has a larger population than Florida.

b)Florida has a larger population than Texas.

c)Idaho has the smallest population.

d)Florida has the largest population.

11. What is 8.57 x 10–4 in standard form?

a)85,700

b)0.00857

c)8,570,000

d)0.000857

Please help!! Need answer now!!

- Please answer two math questions!!! -
**Reiny**, Tuesday, October 23, 2012 at 11:29am
your numbers were probably written as

2.5 x 10^7

which means 2.5 x 10000000 , notice 7 zeros from 10^7

= 25 000 000 --> 25 million

do the same with the other numbers and you will be able to compare their sizes.

8.57 x 10^-4

= 8.57 x 1/10^4

= 8.57 x 1/1000 -----> count the zeros in the denominator

= .000857 -----> how many places to the left has the decimal moved?

does that give you any hints for quick solutions to these kind of problems?

- Please answer two math questions!!! -
**Esther**, Tuesday, October 23, 2012 at 11:31am
Thank you :)

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