The matrix m is a square matrix of order 12 with all elements taking either 0 or 1, such that each row and column has exactly one element being 1. let ko be the minimum value of the positive integer k such that mk is the identity matrix. for all possible matrices m, give the maximum value of ko

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree