The force of the air's resistance to a certain car (in newtons) as a function of the car's speed ((left parenthesisin \text{km/h})km/h)start text, k, m, slash, h, end text, right parenthesis is graphed. what is the approximate average rate at which the air's resistance increases, as the car accelerates from 50\text{ km/h}50 km/h50, start text, space, k, m, slash, h, end text to 65\text{ km/h}65 km/h65, start text, space, k, m, slash, h, end text?

the answer is 11 2/3 nperkm/h : )

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1