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brucebaner

  • one year ago

help me @geerky42

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  1. brucebaner
    • one year ago
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    What is the approximate volume of a cone with a height of 6 mm and radius of 18 mm? Use 3.14 to approximate pi, and express your final answer to the nearest tenth.

  2. brucebaner
    • one year ago
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    i got 2035.75203953 but i dont know how to round is to the nearest tenth

  3. brucebaner
    • one year ago
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    @kobeni-chan

  4. kobeni-chan
    • one year ago
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    The tenth place in a decimal is the number right after the decimal point (7). To round to the nearest tenth, you look to the number afterwards (in the hundredths) which is 5. If the value of the number in the hundredths place is less than 5, you keep the number in the tenths place. If the value of the number in the hundredths place is 5 or greater, you round up :)

  5. brucebaner
    • one year ago
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    im bad at this

  6. kobeni-chan
    • one year ago
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    |dw:1432959289012:dw|

  7. brucebaner
    • one year ago
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    okay

  8. brucebaner
    • one year ago
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    so 2036.52?

  9. kobeni-chan
    • one year ago
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    Not quite. You're rounding to the nearest tenth, so there will only be one number after the decimal point, which right now is 7 The rule for rounding is to look one place to the right (which is 5 in this case). If the number you are looking at is less than 4, then keep the tenth place number the same. If the number you are looking at is 5 or greater, you will up the value of the tenth place number by 1.

  10. brucebaner
    • one year ago
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    so 2036.5?

  11. kobeni-chan
    • one year ago
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    Closer. Your original number that you gave was 2035.75203953 You are keeping everything to the left of the decimal point the same. Right now you're just looking at the tenths and hundredths columns (where I drew the lines in my picture)

  12. brucebaner
    • one year ago
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    so 20365.7?

  13. kobeni-chan
    • one year ago
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    Remember, you keep everything to the left of the decimal point the same. 2035 is staying the same. You are just focusing on the numbers after the decimal point.

  14. kobeni-chan
    • one year ago
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    Look at my picture. We are deciding whether 7 is going to stay the same, or round up to 8.

  15. brucebaner
    • one year ago
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    2036.60? or 2036.6

  16. kobeni-chan
    • one year ago
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    In the beginning you said you got 2035.75203953 for your answer. Can you make sure that you gave us the right number real quick?

  17. brucebaner
    • one year ago
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    okay so i did this v=1/3⋅π⋅18^2⋅6

  18. kobeni-chan
    • one year ago
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    If you Google 'volume of a cone', this will show up. You can just put in the values of the radius and the height and it'll give you an answer.

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  19. kobeni-chan
    • one year ago
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    Then, tell me what it says after V= (or the two squiggly lines)

  20. brucebaner
    • one year ago
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    wait the radius

  21. kobeni-chan
    • one year ago
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    Well first do you see on your screen what you see in my picture?

  22. brucebaner
    • one year ago
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    yes

  23. brucebaner
    • one year ago
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    i got it is it 2035.75?

  24. kobeni-chan
    • one year ago
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    That should be right. So you will be keeping 2035 the same; you're not changing *anything* to the left of the decimal point.

  25. brucebaner
    • one year ago
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    so im right?

  26. kobeni-chan
    • one year ago
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    Yes, but your question is still asking for your final answer to be rounded to the nearest tenth. So what number is in the tenths place?

  27. brucebaner
    • one year ago
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    damm i got 60 i need 80 i cri ever time

  28. kobeni-chan
    • one year ago
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    on a test?

  29. brucebaner
    • one year ago
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    it was 2034.7

  30. brucebaner
    • one year ago
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    the correct answer is 2034.7.

  31. kobeni-chan
    • one year ago
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    Oh :/ on Google did you type in the right radius and height?

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