Acar travels at a constant speed around a circular track whose radius is 2.9 km. the car goes once around the track in 400 s. what is the magnitude of the centripetal acceleration of the car?

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

What is the range of the data below? .8090100

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