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Bad White [126]
3 years ago
5

Simplify the expression 13 (9x)

Mathematics
2 answers:
Ratling [72]3 years ago
8 0

Answer:

117x

Step-by-step explanation:

13(9x) \\ =  117x

Ratling [72]3 years ago
5 0

13(9x)

13 * 9x = 117x

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X=9
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At what point does the curve have maximum curvature? y = 9 ln(x) (x, y) =
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y = 9ln(x) 
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curvature k = |y''| / (1 + (y')^2)^(3/2) 

<span>= |-9/x^2| / (1 + (9/x)^2)^(3/2) 
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To maximize the curvature, </span>

we find where k' = 0. <span>
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Setting k' = 0 yields x = ±9/√2. 

Since k' < 0 for x < -9/√2 and k' > 0 for x > -9/√2 (and less than 9/√2), 
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Since k' > 0 for x < 9/√2 (and greater than 9/√2) and k' < 0 for x > 9/√2, 
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x=9/√2=6.36

<span>y=9 ln(x)=9ln(6.36)=16.66</span>  

the answer is
(x,y)=(6.36,16.66)
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