A plate 120 square inches in area can be made from three kinds of plastic. Denser plastic allows for a thinner plate. Based on the data presented in the table, choosing
which kind of plastic will result in the lightest plate?
Type of
plastic
Density
(lb/in.
Plate thickness
(in.)
X
0.04
co
Y
0.05
+
Z
0.06
سر
A. X
B. Y
• C. Z
D
In all cases the weight will be the same.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

too hard the other guy did it

step-by-step explanation:

what’s the question?