What needs to happen for the equation ch4 + o2 →  co2 + h2o to be balanced? a. a coefficient of 2 must be added before both products. b. a coefficient of 2 must be added before the second reactant and the second product. c. nothing, the equation is already balanced. d. a coefficient of 2 must be added before both products and reactants.

What point is the projection of q on a) r b) s c) t

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?

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle