Pls help me now!! (T^T) 1.
a. common monomial factoring
b. difference of two squares
c. sum and difference of two cubes
d. perfect square trinomial
e. general trinomial

2. 7b - 14a + 21d
a. common monomial factoring
b. difference of two squares
c. sum and difference of two cubes
d. perfect square trinomial
e. general trinomial

the answer to this question is in the pic

-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

answer: 800

step-by-step explanation: