What is the standard form of the following equation?
y + 2 = 14x
a. y = 14x −2
b. y = 14x + 2
c. x − 4y = 8
d. 14x − y =2

D

Step-by-step explanation:

The standard form of the equation of a line is

Ax + By = C ( A is a positive integer and B, C are integers )

Rearrange y + 2 = 14x into this form

Subtract y from both sides

2 = 14x - y, thus

14x - y = 2 ← in standard form → D

The largest angle is opposite the side that measures 17.
We know all 3 sides so we will use the Law of Cosines
cosine (C) = (a^2 + b^2 -c^2) / 2ab
cosine (C) = ( 10^2 + 13^2 -17^2) / 2 * 10 * 13
cosine (C) = (100 + 169 -289) / 260
cosine (C) = -20 / 260
cosine (C) = -.0769230769
arc cosine (-.0769230769 ) = 94.412 Degrees

Source:
http://www.1728.org/trigtut2.htm