To graph y = -cosx,

shift y = cosx left 1 on the x-axis
shift y = cosx up 1 on the y-axis
reflect y = cosx over the x-axis
reflect y = cosx over the y-axis

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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?