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givi [52]
3 years ago
11

I need to know the answer to 9.23 divided by .48, and also how to do it

Mathematics
1 answer:
Sauron [17]3 years ago
3 0
19.2291666667 First you do 9.23 divid by .48. the you move the decimal point from 9.23 two decimals point to the right also .48. So you do 923 divide by 48

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F(x) = lnx/x
My name is Ann [436]
f(x) = \frac{lnx}{x}

(a) f'(x) = \frac{d}{dx}[\frac{lnx}{x}]
Using the quotient rule:
f'(x) = \frac{\frac{1}{x} \cdot x - lnx}{x^{2}}
f'(x) = \frac{1 - lnx}{x^{2}}

For maximum, f'(x) = 0;
\frac{1 - lnx}{x} = 0
lnx = 1, x = e

(b) <em>Deduce:
</em>e^{x} \geq x^{e}, x > 0
<em>
Soln:</em> Since x = e is the greatest value, then f(e) ≥ f(x) > f(0)
\frac{ln(e)}{e} \geq \frac{lnx}{x}
\frac{1}{e} \geq \frac{lnx}{x}, since ln(e) is simply equal to 1

Now, since x > 0, then we don't have to worry about flipping the signs when multiplying by x.
\frac{x}{e} \geq lnx
x \geq elnx
x \geq ln(x^{e})

Taking the exponential to both sides will cancel with the natural logarithmic function in the right hand side to produce:
e^{x} \geq e^{ln(x^{e}})
e^{x} \geq x^{e}, as required.
3 0
2 years ago
Maria is making a candle in the shape of a cylinder. She wants the candle to have a height of 3 cm and a radius of 2 cm. How muc
den301095 [7]

Answer:

V(cylinder) = πr²h

h=3 cm

r=2 cm

V(cylinder) = πr²h = π*2²*3 =12π cm³

Answer : 12π cm³.

3 0
3 years ago
Read 2 more answers
I'm still stuck on this one
Evgesh-ka [11]
The answer would be -4.5/5. You would have to plot the number in between -2 and - 1 4/5. Hope this helps!
7 0
3 years ago
he says the number of books in the box is divisible by 2,3,4,5,6 . how many books could be in the box?
8_murik_8 [283]
The least number of books that could be in the box is 30. The number of books in the box could be any number that is a multiple of 30.
7 0
2 years ago
I need help solving number 11 please.
Mnenie [13.5K]

set up the triangle with the information given. then just solve for x.

3 0
3 years ago
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