The distance from point A to point B is s. In the motion from A to B and back , the speed for the first part of the motion is v1 and the speed for the return part of the motion is v2. The avg speed for the entire motion is v. (1) prove that v=2v1v2/v1+v2. (2)Deduce that it is impossible to average twice the spèed of the first part of the motion, thats, its impossible to have v=2v1

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.

c: lkllmn.

hope it's you

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

answer: what in the world is this

step-by-step explanation: