Which statements are true about the ordered pair (-1,-4) and the system of equations? x-y=3

7x-y=-2

When (-1,-4) is substituted into the first equation, the equation is false.

When (-1,-4) is substituted into the first equation, the equation is true.

When (-1,-4) is substituted into the second equation, the equation is false.

When (-1,-4) is substituted into the second equation, the equation is true.

The ordered pair (-1,-4) is a solution to the system of linear equations

The ordered pair (-1,-4) is not a solution to the system of linear equations.

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.

17

step-by-step explanation:

51/3=17

thus 17 is your answer.

answer: the is put the 450

step-by-step explanation:

angle efh= angle egh