The value of a car, c(t), t years after 2011 is modeled by the following function.
plz !
look at the image .

what is the answer?

graph a

graph b

graph c

graph d

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.