If the human heart beats an average of 62 beats in a minute, how many times will it beat in 291 minutes? A 17,942 B 18,042 229 3
2 answers:
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First we will evaluate: ( substitution: u = x² - y², du = - 2 y dy )
=
( than plug in x and 0 )
=
=
= 1/3 x³ ( then another integration )
= 1/3 * 1/4 = 1/12
=
=
= 1/3 x³ ( then another integration )
= 1/3 * 1/4 = 1/12
Answer:
D. The work shown above is correct, and may not be simplified further.
Step-by-step explanation:
If you add all the exponents of y in first line then we get
4+4+4+4+4+3=23
Which is same as the exponent in original problem.
So first line is good.
Since it is 4th root so each will turn into y when it moves out of the radical so final answer is correct.
Hence correct choice is "D. The work shown above is correct, and may not be simplified further." is the correct answer.