Zeros do not count as a sigfig so when you do something like this problem just include the numbers until you hit your significant figure limit and then substitute zeros where you can. 20000
I would say it’s about 105 degrees due to knowing it’s over 90 degrees
BC AB AC
Step-by-step explanation:
the longer the side is visually detected ok
You need to make the right side = 0
To do this you subtract 10 from both sides of the equation:-
x^2 + 6x + 9 - 10 = 10 - 10
x^2 + 6x - 1 = 0