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Eva8 [605]
3 years ago
14

What is the scientific notation for a lenth of 0.000028?

Mathematics
2 answers:
vovangra [49]3 years ago
6 0
It’s the millionth i think idk how to say it
valentina_108 [34]3 years ago
3 0
2.8×10^ -5
Scientific notation is found by finding a number between 1 up to 9.9 (but not 10).

eg. 2.8 ( place à dot in between the number and count back to the original dot)
0.00002.8 (it moves 5 times)
Use ×10 to indicate the position (No of 0's)
if you move to the left, the power is -
If you move to the right, the power is +

Therefore 2.8×10^-5
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My cousin needs help on all the questions. Please help him he is failing math
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Answer:

  (a) more

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Step-by-step explanation:

When a point total is lower, more points are needed to stay in the game.

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(a) Maria's total is less than -30, so she needs more than 30 to stay in the game. Phone #4 is the only one indicating a need of more than 30, so it is Maria's.

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(b) Susan's total is greater than -25, so she needs less than 25* to stay in the game. Phone #1 is the only one indicating a need of less than 25, so it is Susan's.

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(c) George's point total is lower than Susan's, so he needs more points than Susan. Susan's phone indicates she needs 20 points. Since George needs 5 more points, his is phone #2.

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(d) Antonio needs 15 fewer points than Maria, so his total is more than Maria's total. Maria's phone indicates she needs 45 points, so Antonio only needs 30 points. His is phone #3.

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(e) Susan needs 20, George needs 25, Antonio needs 30, Maria needs 45.

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* If we assume whole numbers of points, a total of "greater than -25" might be a total of -24. To bring the score to a positive value (1), <em>exactly 25 points</em> might be needed. That is, there is some ambiguity in part (b) in that Susan might need <em>less than or equal to 25 points</em>. Susan's phone could be either the first or the second.

The problem is poorly worded. The answer choices above are consistent with the problem statement overall.

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