HELP ME!!!!!!!!!!!!!!!!

Question

yolo_king · Answer

I need help with three problems

anonymous · Answer

ill try, what are the problems?

yolo_king · Answer

|dw:1400262065463:dw|

 What is the solution for x in the proportion   ? Describe your steps.

anonymous · Answer

to find x you would have to cross multiply and divide,$$14\times63\div18$$ that should work for any problem like that

yolo_king · Answer

so the x = 49

anonymous · Answer

yeah

yolo_king · Answer

ok i got two more

yolo_king · Answer

Using complete sentences, explain the two ways to simplify √180  and provide the simplified form.

yolo_king · Answer

Armor beck do you know how to solve that problem?

anonymous · Answer

im fairly certain. basically you need to find a factor of it that is a perfect square 
5x36=180 is on so you could do  $$5\sqrt{36}$$

yolo_king · Answer

so i could you 5√36, is that simplified?

anonymous · Answer

yes that is simplified, the perfect squares are 1,4,9,16,25,36,49,64,81,100.... so if you find another that factors evenly with 180 there is your second one

anonymous · Answer

my bad it would be $$6\sqrt{5}$$ sorry

anonymous · Answer

$$\sqrt{180}=\sqrt{36}\times \sqrt{5} $$ and because $$\sqrt{36}=6 $$  it is $$6\times \sqrt{5}$$

yolo_king · Answer

ok thank you i have one more question

yolo_king · Answer

What is the exact value of the expression 5 √5  + 3  √20 - 6√3   ? Show your work.