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umka2103 [35]
3 years ago
5

What is 0.000000783 written in scientific notation? Enter your answer in the box.

Mathematics
2 answers:
Olenka [21]3 years ago
6 0

=7.83 × 10-7

Step-by-step explanation:

JulsSmile [24]3 years ago
5 0

Here's your answer.  =7.83 × 10-7

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a father's age is three less than two times the son's age. the difference in their ages is 30 years. find the son's age.
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The son's age is 31 and the father's age is 61.
2s-3=f
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The two-column proof below describes the statement and reason for proving that corresponding angles are congruent.
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Step 6 wants us to show two angles which are also two interior angles that are located on the same side.

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3 years ago
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Your friend is wrapping 1 meter of twine around a spool with a 2-centimeter diameter. The spool is thin and accommodates only on
Kazeer [188]

Answer:

a) 6 complete times

b) 19.3%

Step-by-step explanation:

In every turn, the diameter of the twine increases 1 cm.

After the first turn, there is a total wrapped of 3.14*2=6.3 cm.

After the second turn, we have wrapped 6.3+3.14*(2+1)=15.7 cm.

If we continue with these algorithm, we have that after the 6th turn we have 84.8 cm wrapped. <em>This is the last complete turn.</em>

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T = 1         D = 3 cm. Wrapped = 9.4 cm. Total wrapped = 15.7 cm.

T = 2 D = 4 cm. Wrapped = 12.6 cm. Total wrapped = 28.3 cm.

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T = 5 D = 7 cm. Wrapped = 22.0 cm. Total wrapped = 84.8 cm.

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There are left (100-84.8) = 15.2 cm to wrap around the twine, which has a 25.1 cm diameter by now.

The perimeter of the twine is 3.14*25.1=78.8 cm.

The percentage of a complete circle that the last wrapping of the twine will make is:

P = 15.2/78.8 = 0.193 = 19.3%

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3 years ago
Dan has 4 groups of 10 and 3 left over.
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Is there anything else? Like what is the question asking?
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