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Nitella [24]
1 year ago
8

0Aphysical education class is doing jumping jacks for 60 seconds. How many seconds remain if 18 seconds haveSed?24Maiklstand tot

umSave and ExitNextSubmit
Mathematics
1 answer:
Vaselesa [24]1 year ago
8 0

If the initial time was 60 seconds and 18 seconds have passed,

60-18=42

There would be 42 seconds left.

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Area of triangle where A=50, b=31, c=18
Mrac [35]
Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
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Source:
http://www.1728.org/trianinq.htm

 


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KatRina [158]

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Kisachek [45]

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