The law of sines and the law of cosines both provide a way to solve a triangle given three pieces of information about the sides and angles (other than being given three angles). in what two scenarios must you begin solving the triangle by using the law of cosines?

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: