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What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?