As a lifeguard, you can earn $5 per day plus $7.50 per hour. How many hours you must work to earn $50 in one day?
1 answer:
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Some characters in your question are not displayed properly, so I'm guessing at what it says.
"Suppose that
, 
, 
, 
, and 
is continuous. Find the value of 
."
(Correct me if I'm wrong!)
Integrate by parts, letting
and 
, so that 
and 
. Then you have
Integrating once more gives
"Suppose that
(Correct me if I'm wrong!)
Integrate by parts, letting
Integrating once more gives