Pls ! which statement about electric and magnetic fields is true? magnetic fields must start at the north pole of a magnet and end at the south pole of a magnet. electric fields and magnetic fields start at a postive and end at a negative. electric fields must leave a positive charge and end on a negative charge. electric fields and magnetic fields loop from north to south.

Miguel bought a movie ticket that cost $5. he also bought popcorn and a bottle of water. how much did miguel spend altogether?

Arectangle has a width of 9 units and length of 40 units. what is the length of a diognal. a. 31 unitsb. 39 unitsc. 41 units d. 49 units

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.