If a+b=13, and ab-40, then find a3+b3​

Step-by-step explanation:

Step 1: Set Up System of Equations

Solve for a in the first equation

Subsitur that in for the 2nd equation

Set each monomial to zero

Think of a number that adds to 13 and multiply to 40.

Th

So the answer is 5 and 8. Remember factos are interchangeable so a and b can be either 8 or 5.

Cubed both 5 and 8.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.