Answer:
im stuck on a similar problem right now
8.2
Step-by-step explanation:
Use cosine law:
BC² = 7² + 9² - 2(7)(9)cos(60)
BC² = 67
BC = sqrt (67)
BC = 8.1853
BC = 8.2 (nearest tenth)
y=5/3x-12
slope= 5/3
y-intercept= -12
i hope this helps :)
Isolate the variable by dividing each side by factors that don't contain the variable.
14
rectangle 8
triangle 6
5a3-5a2
