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o-na [289]
1 year ago
15

Multiply 3/10 ⋅ 4/9 A. 2/15 B. 7/19 C. 27/40 D. I don't know.

Mathematics
1 answer:
Maslowich1 year ago
7 0

Answer:

A. 2/15

Step-by-step explanation:

\frac{3}{10}  \times  \frac{4}{9}  \\   = \frac{1}{5}  \times  \frac{2}{3}  \\  =  \frac{2}{15} \\  = a \\ if \: found \: helpful \: rate \: brainliest

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Step-by-step explanation:

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Since, we know one side, and the hypotenuse, we can solve for the other side.  

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Where a and b are two sides, and c is the hypotenuse (the side opposite of the right angle)

In this triangle, 7 is the side, and 14 is the hypotenuse.

I will plug in the values into pythagoreans theorem, and then simplify:

a^{2}+b^{2} =c^{2} \\\\7^{2} +x^{2} =14^{2} \\\\49+x^{2} =196\\\\x^{2} =147\\\\x=\sqrt{147} \\\\x=\sqrt{49*3 }\\\\ x=\sqrt{7^{2} *3 }\\\\x=7\sqrt{3}

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