4a²-8ab+4b=????????????
1 answer:
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I am not completely sure if tis is correct. I just took 16 and multiply them for the answer B and C. hope this can help you.
Answer:
50m/s
Step-by-step explanation:
We assum the direction the baseball is travelling to the bat is the positive direction at 20 m/s and is hit in the opposite at a faster speed. The change in velocity is the final velocity minus the initial velocity:
The change in velocity is 50m/s