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3 years ago

7

HELP THE TEACHER IS ASKING FOR MY ANSWERS CUZ I WAS SUPPOSED TO DO IT AND I NEVER WAS PREPARED PLSSS HELP IM NEXT PLS DRAW IT FO

R MEE :( EVEN IF ITS EDITED I WOULD APPRECIATE TYSM HAVE A GOOD DAY! (And if u don’t know 1 u don’t have to do both only one but pls try :(

1 answer:

valentinak56 [21]3 years ago

6 0

1. least. 4/21

great. 4/11

greatest. 4/8

2. least. 2/13

great. 2/7

greatest. 2/5

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A store is having a sale in which the cost of any item is 35% off.

vichka [17]

Answer:

1. no

2. yes

3. no

4. yes

Step-by-step explanation:

only the second and last expression works. If x is the final cost, and it is 35% off, then you are subtracting 0.35xor keeping 0.65x

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3 years ago

Which investor has made a short term investment in this senario. Thomas sofia and aaron work together and they've each recently

jeka57 [31]

Answer:

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Step-by-step explanation:

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3 years ago

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.

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3 years ago

What is 85% of 17,000 dollars that is asked on your irs tax forms

elena55 [62]

Hello!

17,000 * 85% = 14,450

85% of $17,000 is $14,450.

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3 years ago

The price of an office chair was $86. The tax rate was 6%. What was the tax on the chair?

Tamiku [17]

Answer:

86

X.06

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516

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05.16

Step-by-step explanation:

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3 years ago