When is the object moving to the right parametric equations

That is, for a moving object whose parametric equations are known, the position function is a function that “takes in” a time t and “gives out” the position vector r(t) for the object's position at that time. and a(t) = v′(t) = r′′(t) = 〈x′′(t),y′′(t),z′′(t)〉 = x′′(t)i + y′′(t)j + z′′(t)k.

can you pls give me points

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.