D(5, 7), E(4, 3), and F(8, 2) form the vertices of a triangle. What is m∠DEF?

The answer 90 degrees.

Step-by-step explanation:

DE^2 = 1 + 16 = 17.  

EF^2 = 16 + 1 = 17.  

DF^2 = 9 + 25 = 34.  

Since (DE)^2 + (EF)^2 = (DF)^2,  

angle E is 90 degrees.

when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation: