Question
                Add  7.3×10^7+1.8×10^7 . Which is the correct sum?(1 point)
Responses
8.1×107
8.1 times 10 superscript 7 baseline
9.1+107
9.1 plus 10 superscript 7 baseline
9.1×107
9.1 times 10 superscript 7 baseline
9.1×1014
9.1 times 10 superscript 14 baseline
            
        Responses
8.1×107
8.1 times 10 superscript 7 baseline
9.1+107
9.1 plus 10 superscript 7 baseline
9.1×107
9.1 times 10 superscript 7 baseline
9.1×1014
9.1 times 10 superscript 14 baseline
Answers
                    Answer
            
    The population of a city is given as  3.45×10^6 . A nearby city has a population of  1.3×10^5 . What is the sum of the populations of the two cities in scientific notation?(1 point)
Responses
35.8+105
35.8 plus 10 superscript 5 baseline
3.58×106
3.58 times 10 superscript 6 baseline
4.75×1011
4.75 times 10 superscript 11 baseline
4.75×105
4.75 times 10 superscript 5 baseline
    
Responses
35.8+105
35.8 plus 10 superscript 5 baseline
3.58×106
3.58 times 10 superscript 6 baseline
4.75×1011
4.75 times 10 superscript 11 baseline
4.75×105
4.75 times 10 superscript 5 baseline
                    Answer
            
    An empty dump truck weighs about  2.8×10^5  pounds. How much does it weigh if 15,300 pounds of trash is added? The answer should be in scientific notation.(1 point)
Responses
2.953×105 pounds
2.953 times 10 superscript 5 baseline pounds
29,530 pounds
29,530 pounds
15,302.8 pounds
15,302.8 pounds
4.33×105 pounds
4.33 times 10 superscript 5 baseline pounds
    
Responses
2.953×105 pounds
2.953 times 10 superscript 5 baseline pounds
29,530 pounds
29,530 pounds
15,302.8 pounds
15,302.8 pounds
4.33×105 pounds
4.33 times 10 superscript 5 baseline pounds
                    Answer
            
    An empty dump truck weighs about 2.8×10^5 pounds. How much does it weigh if 15,300 pounds of trash is added? The answer should be in scientific notation.(1 point)
Responses
2.953×105 pounds
2.953 times 10 superscript 5 baseline pounds
29,530 pounds
29,530 pounds
15,302.8 pounds
15,302.8 pounds
4.33×105 pounds
4.33 times 10 superscript 5 baseline pounds
A B C D?
    
Responses
2.953×105 pounds
2.953 times 10 superscript 5 baseline pounds
29,530 pounds
29,530 pounds
15,302.8 pounds
15,302.8 pounds
4.33×105 pounds
4.33 times 10 superscript 5 baseline pounds
A B C D?
                    Answer
            
    The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is  4.463×10^11  years longer. What is the half-life of uranium-238? The answer should be in decimal form.(1 point)
Responses
11,463,000,000
11,463,000,000
516,300,000,000
516,300,000,000
447,000,000,000
447,000,000,000
4.4637×1011
4.4637 times 10 superscript 11 baseline
    
Responses
11,463,000,000
11,463,000,000
516,300,000,000
516,300,000,000
447,000,000,000
447,000,000,000
4.4637×1011
4.4637 times 10 superscript 11 baseline
                    Answer
            
    A mobile phone holds  1.28×10^11  bytes of storage. You can also pay more money to get an additional 384,000,000,000 bytes. How much storage would your phone have if you buy the additional bytes? The answer should be in scientific notation.(1 point)
Responses
512×109
512 times 10 superscript 9 baseline
5.12×1011
5.12 times 10 superscript 11 baseline
385.28×1011
385.28 times 10 superscript 11 baseline
385,280,000,000
385,280,000,000
    
Responses
512×109
512 times 10 superscript 9 baseline
5.12×1011
5.12 times 10 superscript 11 baseline
385.28×1011
385.28 times 10 superscript 11 baseline
385,280,000,000
385,280,000,000
                    Answered by
            GPT 3.5
            
    The correct sum is 9.1×10^7.
    
                    Answered by
            GPT 3.5
            
    The sum of the populations of the two cities in scientific notation is 3.58×10^6.
    
                    Answered by
            GPT 3.5
            
    The weight of the dump truck after adding 15,300 pounds of trash is 4.13×10^5 pounds.
    
                    Answered by
            GPT 3.5
            
    My apologies for the confusion. The correct answer is 2.915×10^5 pounds.
    
                    Answered by
            GPT 3.5
            
    The half-life of uranium-238 is 4.463×10^11 years.
    
                    Answered by
            GPT 3.5
            
    If you buy the additional 384,000,000,000 bytes, your phone would have a total storage of 5.12×10^11 bytes.
    
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