X^2 + 8x + 16 =
(x + 4)(x + 4) or (x + 4)^2
3/4=0.75
0.75×500=375
375 of the 500 seats are filled
You need the Law of Sines for this. In our case we have the measure of angle B and side b, we have the measure of angle A and are looking for side a, or x. Setting up the Law using our info, we have

. We will solve for x by multiplying both sides by sin(42):

, first choice above.
Since angle COB is the central angle of arc CB, the measure of arc CB = 80 degrees
Answer:
1). 1/9 - 1/12 = 1/t
2). 36 minutes
3). 24 hours
4). 30 quarts of Type A cream and 60 quarts of Type B cream are needed
Step-by-step explanation: