12/30 = 18/45, so first you're going to cross multiply and you'll get (30)(18) = (12)(45). Then you can see that 540 = 540 same number so they're proportional...
BTW THIS WAY IS A LOT EASIER.
12/30 = 2/5
18/45 = 2/5
So yes, in summary, they're proportional to each other. Hope this helps, have a BLESSED and wonderful day! :-)
Answer:
I attached a picture below of what the lines of symmetry are.
Answer:
10 sqrt 3.
Step-by-step explanation:
sqrt30 = sqrt10 * sqrt 3
so sqrt30 * sqrt10
= sqrt10 * sqrt10 * sqrt3
= 10 sqrt 3.
1.

which is further simplified to

which is 20.
2.
Answer:
7
Step-by-step explanation:
Given,
h ( x ) = 1
To find : -
h ( x ) = 3x + 4
h ( 1 ) = 3 ( 1 ) + 4
= 3 + 4
h ( 1 ) = 7