The temperature went from -12°F to 18°f which of the following expressions could be used to find how much the temperature changed? 18+(-12). -12-18. -12+18. 18-(-12)

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.

one of each metals

step-by-step explanation:

i can't see the picture : /