Hello,
To exist x≠0
if x>0 then
x+2/x>=3==>x²+2>=3x
==>x²-3x+2>=0
==>(x-2)(x-1)>=0 positive out of the roots
==> (x<=1 or x>=2) and x>0
==>(0<x<=1) or (x>=2)
else
x<0
x+2/x>=3==>x²+2<=3x
==>x²-3x+2<=0 negative betheen the roots
==>(1<=x<=2) and x<0 : no solution
end if
Answer:
(y2 - y1)/(x2-x1)
Step-by-step explanation:
if you have 2 points (x1,x2) and (y1,y2), just plug it in the formula for slope m
m = (y2 - y1)/(x2-x1)
Answer:
33
Step-by-step explanation:
(17-12)+4×7 (PEMDAS states we do the equation in the paranthesis 1st)
5 + 4*7 (We then multiply 4*7 because M comes before A)
5 + 28 (Then we just add)
33
Answer:
9
Step-by-step explanation:
E
1) Get rid of the square. You have to square root both sides.
2) Subtract 7 from both sides.
3) x= -1