Answer:
Given the equation: 
The general equation of quadratic formula for
where a, b and c are constant;
then, the solution for this equation is given by;
......[1]
From the equation,
we have
a =2, b=14 and c=16
Substitute these values in [1] to solve for x;
or

Simplify:

then,
and

Therefore, the solutions for the given equation is; x =-2 and 
Answer:
The length of the model is 12.4.
Step-by-step explanation:
2in=25ft
x=155ft
155/25=6.2
2*6.2=12.4
-4<em>n</em> ≥ 12 ==> <em>n</em> ≤ -3
<em>n</em> + 5 > 2 ==> <em>n</em> > -3
But <em>n</em> cannot be both less than/equal to -3 AND greater than -3, so there are no integers <em>n</em> that satisfy these inequalities.
Answer:
The values for a, b c are:
a = 1
b = -4
c = 12
Step-by-step explanation:
In order to make it in standard form we need to swap the "-12" to the left side. When we swap numbers from one side to the other of an equation we need to invert their operation so the equation will still be valid, so in this case the number "-12" will go to the left side as "+12". We have:
x² - 4x + 12 = 0
The values for a, b c are:
a = 1
b = -4
c = 12
35% its tht or 15% let me double check it