Can you pay the exact amount (no change ) of $20 by using seven $1, $5, and $10 bills?

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?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re