Your answer is number 2 it is 38.2 because 26 out of 68 is a percentage of 38.24
When a quadratic equation ax^2+bx+c has a double root, the discriminant,
D=b^2-4ac=0
Here
a=2,
b=b,
c=18
and
D=b^2-4ac=b^2-4*2*18=0
solve for b
b^2-144=0
=> b= ± sqrt(144)= ± 12
So in order that the given equation has double roots, the possible values of b are ± 12.
WE NEED THE FREAKIN' POINTS
9+(5+3) is going to be 17
Answer:
x + 13 < 50
Step-by-step explanation:
