Answer:

Step-by-step explanation:
If there are two variables together, you will have to multiply them.

Replace x and y accordingly:

You know from similar triangles that ...
KM/KO = LM/LN
(20 +x)/12 = x/8
Multiplying by 24, we get
2(20 +x) = 3x
40 +2x = 3x
Subtracting 2x, we get
40 = x . . . . . . . . . . the measure of LM
The Pythagorean theorem tells us
(LN)² +(NM)² = (LM)²
Substituting known values, this becomes
8² +(NM)² = 40²
(NM)² = 40² -8² = 1600 -64 = 1536
Then the measure of NM is ...
NM = √1536 ≈ 39.19
1/4 ... it’s 2 because 1/4 is it yep ya it’s right
Answer:

Step-by-step explanation:
base*hight


Subtract 11xy^2- from 9xy^22 to get -2xy^2