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laila [671]
3 years ago
9

What is this please show work too solve the proportion

Mathematics
1 answer:
zloy xaker [14]3 years ago
8 0

Answer:

\huge{\boxed{\bold{\tt{d = 2 }}}}

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

♨ Question : Solve for d.

  • : \sf{ \frac{d}{6}  =  \frac{3}{9} }

✎ Step - by - step explanation :

  • \sf{ \frac{d}{6}  =  \frac{3}{9}}

Do cross multiplication :

⇾ \sf{d \times 9 = 6 \times 3}

⇾ \sf{9d = 18}

Divide both sides by 9

⇾ \sf{ \frac{9d}{9}  =  \frac{18}{9}}

⇾ \boxed{ \sf{d = 2}}

And we're done!

Hope I helped!

Have a wonderful time ツ

~TheAnimeGirl ♡

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Answer:

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Therefore, cos(a + b) = \frac{1}{12}(1-2\sqrt{30})

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