The answer is B because the bottom has to be supplementary to 180 degrees because their supplementary angles
The quadratic formula is 

So the solution for k is 16.
Hope that helps!
Answer:
=x^3 y^3-3x^3y^2+4x^2y^3+3
Step-by-step explanation:
Answer:
Step-by-step explanation:
The variables are defined, so we only need to express the given relations. The total of the two quantities is 14.
x + y = 14
The sum of costs is $72. Totts are $8 each, so x of them will cost 8x. Elentines are $3 each, so y of them will cost 3y.
8x +3y = 72
Answer:
26
Step-by-step explanation:
2(5+8)
=2×(13)
=26
therefore 26 is the answer