Given a parallelogram OABC, suppose that OA = a, OC = c and D is the point that divides the side BC equally. Moreover, suppose the line AC meets at the point M. find OM, in terms of the vectors a, b and a scalar r, if OM : MD = r : 1

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle