Answer:
C
Step-by-step explanation:
Area:
Perimeter:
Jack works for a company that pays him $20 an hour. His normal workday does not exceed 8 hours. After working 8 hours in a day,
he gets paid $5 per hour overtime in addition to his regular wage. He cannot work fewer than 5 hours a day or more than 14 hours a day. Which graph shows Jack's wages if he works for x hours a day?
2 answers:
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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.
