Answer:
y=1; x=2
Step-by-step explanation:
Substitution:
x=2y
2x+5y=9
=> if x=2y, plug in the x value into other equation, so
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2(2y)+5y=9
4y+5y=9
9y=9
y=1
You have the Y value, so now solve for X
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plug in y value to x=2y
so x=2(1)
x=2
Answer:
24
Step-by-step explanation:
I use the Pythagoras theorem.


16 x 36= 576

Answer:
or 
Step-by-step explanation:




For sin θ = 0.5, the reference angle is θ = 30 deg.

or 
Answer:
6 * 24 * 10 * 10 = 14,400
Step-by-step explanation:
6 * 10 = 60.
24 * 10 = 240.
60 * 240 = 14,400.
hope this helps.
Don’t click on the link, it is a virus.... the answer is 18 squared x 3.14
So then you get 324x3.14, and you get 1,017.36
That is ur answer