Answer:
Step-by-step explanation:
= x^2+6x+9-8=0
=x^2+6x+1=0
D=b^2-4ac
D= 36-4
D=32
x=-b±root D/2a
x=-6+4root2/2 , x = -6-4root2/2
simplify you get the least form...
hope it helps
Answer:
12meters
Step-by-step explanation:
Given data
Lenght = 36 meters
Width = 15 meters
The dimension of the diagonal can be gotten via Pythagoras theorem
D^2= L^2+W^2
Substitute
D^2= 36^2+ 15^2
D^2= 1296+225
D^2= 1521
D= √1521
D= 39 meters
Hence the distance while walking on the side is
=36+15
=51 meters
Hence the difference is
=51-39
=12meters
C is the correct answer. hope it helps. :)
(%)(V1)+(%)(V2-V1)=(%)(V2)
(0.70)(x)+(0.30)(600mL-x)=(0.55)(600)
(0.70x)+(180)-(0.30x)=330
(0.70-0.30)x=330-180
(0.40)x=150
x=(150)/(0.40)
x=375 mL
