Answer:
x≤−9 or x≥5 or x=0
Step-by-step explanation:
Let's solve your inequality step-by-step.
x2(x+9)(x−5)≥0
x4+4x3−45x2≥0
Let's find the critical points of the inequality.
x4+4x3−45x2=0
x2(x−5)(x+9)=0(Factor left side of equation)
x2=0 or x−5=0 or x+9=0(Set factors equal to 0)
x=0 or x=5 or x=−9
Check intervals in between critical points. (Test values in the intervals to see if they work.)
x≤−9(Works in original inequality)
−9≤x≤0(Doesn't work in original inequality)
0≤x≤5(Doesn't work in original inequality)
x≥5(Works in original inequality)
Answer:
x≤−9 or x≥5 or x=0
I also recommend MathPapa or Symbolab to help you with your math.
Answer:
1 : 4
Step-by-step explanation:
Given:
Favorite Music :
Pop _____ 7
Country __ 5
Dance ___ 4
Total number of students surveyed :
(pop + country + dance). = (7 + 5 + 4) = 16
Number who chose dance = 4
Ratio of dance to total number surveyed
4 : 16 = 1 : 4
1 :4 (lowest term)
Answer:
yes
Step-by-step explanation:
7.1 is the value of Ef where cd=df
Answer:
c,d,f,g
Step-by-step explanation: