2. consider the quadratic equation 2x2 + 7x – 4 = 0. a. what is the value of the discriminant? explain. b. how many solutions does the quadratic equation have and are those solutions rational, irrational, or nonreal? explain. c. if the quadratic equation has real solutions, what are the solutions? explain. estimate irrational solutions to the nearest tenth.

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

9 x 8 divided by (5-3)=36