Answer:
(x+c)(x-d)
Step-by-step explanation:
if x²-ax-b=(x-c)(x+d)
from vieta theorem
c + d = -(-a)=a
cd = b
if x²+ax-b
from vieta theorem
c + d = -(a)=-a
cd = b
so the same c d but in opposite sign (x+c)(x-d)
Since the discount is 20%, we know that $24 is 80% or 4/5 of the original price of the shoes. Divide the $24 by 20%, and you get $6. Add that to $24, and you get the original shoe price: $30. You can verify by Multiply 30 by 80%, which comes out to the discount price-$24.
Answer:
<h2>B. (6, 4)</h2>
Step-by-step explanation:
The slope-point form of an equation of a line:

<em>m</em><em> - slope</em>
<em>(x₁, y₁)</em><em> - point on a line</em>
<em />
We have the equation:

hence

Check other points:
Substitute the coordinates of the points into the equation and check the equality:
A. (-6, -4)
-4 - 4 = -2(-6 - 6)
-8 = 24 FALSE
C. (-4, -6)
-6 - 4 = -2(-4 - 6)
-10 = 20 FALSE
D. (4, 6)
6 - 4 = -2(4 - 6)
2 = 4 FALSE
Less than as .25<.4 ......
Add up all of the side lengths and you get 148.4 as the perimeter.
subtract that from 150 and you're left with 1.6 m left of tape