Use the Law of Sines:
sin B sin 81 sin 44
---------- = ----------- = --------------
side AC 68 side AB
Then (side AB)(sin 81) = 68(sin 44), or
68 sin 44
side AB = ----------------------- = 47.83 units long
sin 81
Answer:
n = 1
Step-by-step explanation:
Add 20 to both sides, obtaining
n = 4 - 3n
Next, add 3n to both sides:
4n = 4
Finally, solve for n by dividing both sides by 4:
n = 1
To find the number of schedules knowing that she can only take one of each subject, you will multiply ALL the possible numbers of options for each.
2 x 3 x 3 x 4 =72
There are 72 different possible class schedules.
Each pound 4.20/2 = $2.10
5 pounds will cost + 2.10 x 5 = $10.50
