Q/ Four point charges Q. 2Q, -Q. -20 are located at (0,0.a). (0,0.2a). (0.0,-a). and (0,0-2a) respectively. Derive an expression for the potential and the electric field intensity E at the point (x, y,z). Hint: assume what you think is suitable.​

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte