Please help fast!! Quarter ends tonight!

-18

Step-by-step explanation:

2 x -2^3 + 3 x 2 x -1 - 4 x -1^2 = -18

Answer I think is 18

Step-by-step explanation:

The first part is 16, then the second part is 6, then the third part is 4. So then it would be 16+6-4=18, if I'm not mistaken.

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.