- How is the formula for the perimeter of a rectangle an application of the Distributive Property

1 answer:

N76 [4]3 years ago

3 0

Distributive is
a(b+c)=ab+ac
ab+ac=a(b+c)

perimiter of a rectangle=distance around

we have
P=L+W+L+W if we go around
so
P=L+L+W+W
P=2L+2W
undistribute 2
P=2(L+W)

You might be interested in

Find an equation of a parabola with a vertex at the origin and directrix X = 2.5

adell [148]

Vertex=(0,0)
directrix is x=2.5
or x-2.5=0
so focus S is (-2.5,0)
let P(x,y)be any point on the parabola.
Let M be the foot of perpendicular from P(x,y) on the directrix.
then SP=PM
$\sqrt{(x-(-2.5))^2+(y-0)^2} =| \frac{x-2.5}{( \sqrt{1})^2 } |
squaring both sides$ $(x+2.5)^2+y^2=(x-2.5)^2 , x^2+6.25+5x+y^2=x^2+6.25-5x
$
$y^2=x^2+6.25-5x-x^2-6.25-5x=-10x
so eq. is y^{2} =-10x$

7 0

4 years ago

What is the slope of the<br> points (4, -2) and (-4, -4)?

timofeeve [1]

Answer:

= 1/4

Step-by-step explanation:

We can find the slope given two points by using the following formula

m = (y2-y1)/(x2-x1)

= (-4 - -2)/(-4 -4)

= (-4+2)/(-4-4)

= -2/-8