anhmartha

A pollutant has been leaking steadily into a river. An environmental group undertook a clean-up of the river. The number of units of the pollutant in the river t years after the clean-up began is given by the equation N(t) = 2t + (1/10t+1) a) How many uni...

Triangle ABC is an equilateral triangle, with O its centroid Prove Vector OA + vector OB + vector OC = Vector 0

An airplane takes off at 130 km/h at 15° above the horizontal. Provide an example to indicate scalar multiplication by 3

Thanks for Oobleck's hint. I use the derivative and set it equal to 0, but the answer is negative. The answer to the textbook is about 11 months.