Question

The 2010 census data for the populations of three states is show below. According to the data, which of the following statements is true ?.
State Population
Texas 2.5 x 10^7
Florida 1.9 x 10^7
Idaho 1.6 x 10^6
A. Idaho has a larger population than Florida
B. Florida has a larger population that Texas
C. Idaho has the smallest population (picked this one)
D. Florida has the largest population.
2. What is 2.28 x 10^-8 in standard form?
A. 228,000,000
B. 22,800,000
C. 0,0000000228
D. 0,000000228

Answer 1

3. Which of the following numbers is an example of an irrational number?
A. 1.32
B. 3.141592
C. \[\sqrt{16}\
D-22

4. What number is equivalent to 0.3
A. 1/3
B. 33/100
C. 5/6
D. 2/3

5. Riding the bus, Roger uses 1/3 of his money for bus fare. What is the fraction of his money expresses as a decimal.
A. 0.3
B. 0.6
C. 0.8
D. 1.5

6 Serena has a 7/8 yd of fabric. To complete her craft project, she needs 3 times that amount. How many yards of fabric does Serena need?

A. 2 5/8
B. 2 7/8
C. 3 3/7
D. 3 7/8

7. A piece of string is 3 yards long. How many 1 1/4 yard long pieces can Julie cut from the string?
A. 1
B. 2
C. 3
D. 4

Answer 2

well a positive exponent just means move the decimal point to the right that many places, and a neg exponent means move the decimal point to the left that many places.

so your first question... well which number is the biggest or smallest... according to answer choices and you got it correct... Idaho is the smallest... Texas is the largest but thats not an answer choice.