The answer is B, 20 balls in 4 seconds. Or 5 balls per second.
The correct answer is the second option: plus or minus square root of 20
Hope this helped :)
Answer:
find the same x-value and the same y-value that satisfies both ... 1 2 3. + 4 5 6. 5 7 9 ... + (4x – 2y + 9 = 0).
Step-by-step explanation:
How far does a wheel move when it rotates once? The length of the outside of the tyre? Isn't that the same as the circumference?