Find the length of ab in abc shown on the coordinates plane. round to the ut unit. a=5 b=8 c=9 d=13

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie