This is how it would look on a graph.
Answers:
Equation 1: B
Equation 2: D
Equation 3: A
Equation 4: C
*I am pretty sure are right
You would want to have more than 61% of the seats available for a smoke free area.
61% = 0.61 0.61 * 149 = 90.89 or 91 seats to accommodate 61% smoke free customers
To allow for any extra customers in a smoke free area I would figure on 65%
so 65% = 0.65 0.65 * 149 = 96.85 or 97 seats to allow for a few extra for the customers in the smoke free area
Answer:
they are supplementary angles since they add up to 180
If you know that
, then you know right away

###
Otherwise, you can derive the same result. Let
, so that
.
is bounded, so we know
. For these values of
, we always have
.
So, recalling the Pythagorean theorem, we find

Then

as expected.