A. 28
B. 67.45
C. 71.4
Hope this helps sorry if I’m wrong
Answer:
about 5.613 seconds
Step-by-step explanation:
Using the quadratic formula to find the value of t when h = 0, we have ...
at² +bt +c = 0
t = (-b±√(b²-4ac))/(2a)
t = (-72±√(72² -4(-16)(100)))/(2(-16))
t = (-72±√11584)/-32 = (9±√181)/4
Only the positive value of t is of interest.
The coin will hit the stream after (9+√181)/4 seconds ≈ 5.613 seconds.
Answer:
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D that's the answer dont worry Ik I got u
Answer:
Option A. is the right choice.
Step-by-step explanation:

Best Regards!
Zero commutative<span>property of multiplication. </span>The zero commutative property of multiplication states that when any number is multiplied by 0 the result is always zero