What is the answer 12 1/3 - 7 5/7 subract express your answer in lowest terms

Consider symmetrically placed rectangular insulators with uniformly charged distributions of equal magnitude as shown. x y −−−−−− what is the direction of the net field at the origin?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585