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 this 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. Rhone Island:1.1 x 10^6
C. Texas:2.5 x 10^7
D. Missouri:6 x 10^6
4.Which number is greater than 5.5 x 10^-7 and less than 5.5 x 10^7?
A. 1.8 x 10^-12
B. 6.7 x 10^8
C. 5.2 x 10^3
D. 3.9 x 10^-8
!!!HELP ME!!!
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Sure, I can help you with these questions. Let's go through each one step by step:
1. Which of the following is greater than 4.3 x 10^9?
To compare the given numbers, we can directly compare the powers of 10. The given number is 4.3 x 10^9. Now let's look at the answer choices:
A. 2.1 x 10^9 - This is smaller than the given number.
B. 3.2 x 10^9 - This is smaller than the given number.
C. 5.3 x 10^9 - This is greater than the given number.
D. 7.4 x 10^8 - This is smaller than the given number.
Therefore, the answer is C. 5.3 x 10^9.
2. Which of the following is less than 6.5 x 10^-5?
Again, let's compare the powers of 10 for the given number, which is 6.5 x 10^-5. Now let's look at the answer choices:
A. 1.4 x 10^-3 - This is greater than the given number.
B. 2.5 x 10^-4 - This is greater than the given number.
C. 7.8 x 10^-5 - This is greater than the given number.
D. 4.6 x 10^-6 - This is smaller than the given number.
Therefore, the answer is D. 4.6 x 10^-6.
3. According to this 2010 census, the population of Nebraska was 1.8 x 10^6 people. Which state had a smaller population?
Now, let's compare the population of Nebraska, which is 1.8 x 10^6. Now let's look at the answer choices:
A. California: 3.7 x 10^7 - This is greater than the population of Nebraska.
B. Rhode Island: 1.1 x 10^6 - This is smaller than the population of Nebraska.
C. Texas: 2.5 x 10^7 - This is greater than the population of Nebraska.
D. Missouri: 6 x 10^6 - This is greater than the population of Nebraska.
Therefore, the answer is B. Rhode Island: 1.1 x 10^6.
4. Which number is greater than 5.5 x 10^-7 and less than 5.5 x 10^7?
To find a number within this range, we need to look for an answer choice that is greater than 5.5 x 10^-7 and less than 5.5 x 10^7. Let's check the options:
A. 1.8 x 10^-12 - This is smaller than 5.5 x 10^-7.
B. 6.7 x 10^8 - This is greater than 5.5 x 10^7.
C. 5.2 x 10^3 - This is greater than 5.5 x 10^-7 but smaller than 5.5 x 10^7.
D. 3.9 x 10^-8 - This is smaller than 5.5 x 10^-7.
Therefore, the answer is C. 5.2 x 10^3.
I hope this helps! If you have any more questions, feel free to ask.