Please Help, I can't figure this out A particle moves according to a law of motion s = f(t) = t3 - 12t2 + 45t, t 0, where t is measured in seconds and s in feet.

a. When is the particle speeding up?

(?,?)U(?,?)

b. When is it slowing down?

(?,?)U(?,?)

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.