Https://www.google.com/search?q=how+to+find+herons+formula&rlz=1C1CHBF_enUS712US712&oq=how+to+find+h... look at the first thing that comes up on the url page
Answer should be 12 3 times 4-2 is 6 times 2 is 12
The value of cos B is 12/13
The answer is y=(1/2)x -5
You are given the slope and a core donate pair so you plug them in to the equation. 2=x. -4=y. And (1/2)= m
Then work out like a one step equation
Answer:
B. x = -8
Step-by-step explanation:
-4(2x + 3) = 2x + 6 - (8x + 2)
-8x -12 = 2x + 6 - 8x -2
(now, "-8" in both terms is cancelled):
-12 = 2x + 6 - 2
(leave 2x alone in second term):
-12 -6 +2 = 2x
-16 = 2x
-16/2 = x
-8 = x
