I would estimate 643 - 189 by rounding 643 to the tens place and 189 to the hundreds place.
643 => 640
189 => 200
Now you can subtract 200 from 640.
640 - 200 = 440
Answer:
period.
Step-by-step explanation:
2. Is a Function and oof kinda forgot the rest sorry
Answer:
3
Step-by-step explanation:
The magnitude is found by taking the maximum to the minimum
max = 3
minimum = -3
Magnitude = 3--3 = 3+3 =6
The amplitude is 1/2 the magnitude
Amplitude = 1/2 *6 =3
