Answer:
the required value of c is [ -11 -1
2 5]
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.
Answer:
6224
Step-by-step explanation:
Just multiply the two subjects.
Hope this helps :)
Divide 3945 by 20 to see how many full bags have to be bought then if you need part of a bag you have to buy one extra 193 full bags 3940 pounds and one extra bag for the other 5 pounds