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Katyanochek1 [597]

2 years ago

7

if u had 5 $100 bills 6 $50 bills 7 $20 bills 8 $10 bills 9 $5 bills 10 $2 bills 11 $1 bills and 100 cents 2 50 cents 3 25 cents

4 10 cents 12 5 cents 13 1 cents how much would it be in all the money counted up it would be 1099.88

1 answer:

almond37 [142]2 years ago

5 0

Answer:

1,099.88

Step-by-step explanation:

Just add everything to get that.

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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

Is it true or false?

alina1380 [7]

Answer:

False

Step-by-step explanation:

I'm pretty sure it's false, sry if it's not

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2 years ago

Florence looked at her school lunch account and realized it was –$10.83. Which statement accurately explains the value in her ac

Rudik [331]

Answer:

Step-by-step explanation:

A

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2 years ago

What is (2x2+6x+5) - (6x2+ 3x+5) solved ?<br>

lana [24]

Answer:

The answer is (-8+3x). :)

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2 years ago

Which ordered pair is a solution to the system of linear equations Negative 4 x + y = 8 and x minus 5 y = 17?

Zinaida [17]

Answer:

(-3, -4).

Step-by-step explanation:

-4x + y = 8

x - 5y = 17 Multiply this by 4:

4x - 20y = 68 Add this to the first equation:

-19y = 76

y = 76/-19

y = -4.

Plug this into the second equation:

x - 5(-4) = 17

x = 17 - 20

x = -3.

CHECK this result in equation 1:

-4(-3) + -4 = 8

12 - 4 = 8

8 = 8 <------ OK.

8 0

2 years ago