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Aneli [31]
3 years ago
14

Why does cross multiplication work / why cross multiplication works need asap! thank you :)

Mathematics
2 answers:
kari74 [83]3 years ago
6 0

Cross multiply only when you need to determine if one fraction is greater than another, or if you are trying to find a missing numerator or denominator in equivalent fractions.

Tatiana [17]3 years ago
6 0
The slope is three and parallel lines have equal slopes
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3 years ago
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kipiarov [429]
Triangle inequality rule states that the sum of eachpair of sides must be greater than the third sides.
 240 + 123 > 207 true
240 + 207 > 123 true
123 + 207 > 240 true

A = √(s(s-a)(s-b)(s-c))
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3 years ago
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3 years ago
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