Answer:
A. 18°
Step-by-step explanation:
Using the cofunction identity
sin x = cos(90 - x)
Hence
sin72° = cos(90 - 72)° = cos18° ⇒ ∠Y = 18°
Answer:
Step-by-step explanation:
I'm assuming you're not doing the pre-calculus version of this equation where your angle is in radians. So we'll do the Geometry version which looks like this:

Our angle is 30 and our radius is 4, so we fill in accordingly:
(this is if you multiply in pi. We'll find the answer in terms of pi as well).
AL =
and
AL = 2.09433 inches
In terms of pi, the answer would be
AL =
inches
< is the correct symbol
3 x 2/4 = 1.5
1.5 is less than 3
so 1.5 < 3
Answer:
Step-by-step explanation:
clay will have
-80+96=16 dollars
the change in balance is +16