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Arlecino [84]
3 years ago
12

What is cross multiplication helpful is?

SAT
2 answers:
DiKsa [7]3 years ago
5 0
In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.
Mamont248 [21]3 years ago
4 0
Cross Multiplication is helpful for when you are using fractions.

Example:
1 4
— x — = ?????
2 2

Sooooo, you must multiply 1 by 2 to get 2. Then, multiply 4 by to 2, to equal 8.
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<h3>How to determine the hypotenuse of the triangle?</h3>

From the complete question, we have the following side lengths

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