2 years ago

What is the answer to this equation 1 2/5÷5/7

Mathematics

2 answers:

mixer [17]2 years ago

8 0

84/25

If you need an explanation, comment below. :)

marissa [1.9K]2 years ago

7 0

Answer:

85/25

Step-by-step explanation:

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Step-by-step explanation:

solid line means >=

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Afina-wow [57]

Answer:

Third option is the right choice.

Step-by-step explanation:

Manipulate the right hand side.

$\sec \left(x\right)\\\\=\frac{1}{\cos \left(x\right)}\\\\\mathrm{Use\:the\:following\:identity}:\quad \:1=\cos ^2\left(x\right)+\sin ^2\left(x\right)\\\\=\frac{\cos ^2\left(x\right)+\sin ^2\left(x\right)}{\cos \left(x\right)}\\\\\Rightarrow \mathrm{True}$