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zackmoore
26.07.2020 •
Mathematics
Find the length L of the curve
![y = \sqrt{x}](/tpl/images/1710/5608/cddb0.png)
from the point P(0,0) to the point Q(4,2)
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Ответ:
4.647 to the nearest thousandth.
Step-by-step explanation:
The formula for the length of an arc between x = a and x = b is
a
∫ √( 1 + (f'(x))^2) dx
b
Here f(x) = √x so
we have ∫ (√( 1 + (1/2 x^-1/2))^2 ) between x = 0 and x = 4.
= ∫ ( √( 1 + 1/(4x)) dx between x = 0 and x = 4.
This is not easy to integrate but some software I have gives me the following
length = √17 + 1/8 log(33 + 1/8 √17)
= 4.647.
Ответ:
345.5
Step-by-step explanation:
divide it by two then take away 59 from adults then add it to the kids