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3 years ago

What is the difference? X-8/3x - 3x/x^2

Mathematics

2 answers:

Paladinen [302]3 years ago

7 0

Answer:

$\frac{x - 8}{3x} - \frac{3x}{ {x}^{2} } \\ \\ \frac{x - 8}{3x} - \frac{3}{x} \\ \\ \frac{x - 8 - 9}{3} \\ \\ \frac{ x - 17}{3x}$

Ronch [10]3 years ago

6 0

Answer:

$\\ \frac{x - 8}{3x} - \frac{3x}{ {x}^{2} }$

$\\ = \frac{x - 8}{3x} - \frac{3 {\cancel{x}}}{{ \cancel {x^2} }}$

$\\ = \frac{x - 8}{3x} - \frac{3}{x}$

$\\ = \frac{x - 8 - 9}{3}$

$\\ = \frac{x - 17}{3x}$

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coldgirl [10]

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I = Prt\qquad 
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I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$1200\\
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\\\\\\
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$\bf ~~~~~~ \textit{Simple Interest Earned increased by 1\%}\\\\
I = Prt\qquad 
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I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$1200\\
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\\\\\\
I=1200(0.04)(5)\implies \boxed{I =240}\\\\
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$\bf ~~~~~~ \textit{Simple Interest Earned increased by 1 year}\\\\
I = Prt\qquad 
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r=rate\to 3\%\to \frac{3}{100}\to &0.03\\
t=years\to &6
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\\\\\\
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4 years ago

What is the reciprocal of 5/8

V125BC [204]

The reciprocal of 5/8 is 8/5 all you have to do is flip it.
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3 years ago

14 divied by 3/8 equals

astraxan [27]

Answer:

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Step-by-step explanation:

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Assume that x equals x (t )and y equals y (t ). Let y equals x cubed plus 4 and StartFraction dx Over dt EndFraction =2 when xe

nika2105 [10]

Answer:dy/dt(x=3)=54

Step-by-step explanation:

We know that we can write:

$\frac{dy}{dt}=\frac{dy}{dx} *\frac{dx}{dt}$

and so evaluate it as a product of functions, that is for a given value of x or t, we get that

$\frac{dy}{dt}(s)=\frac{dy}{dx} (s) * \frac{dx}{dt}(s)$ .

Now we are told that:

$1. x=x(t),\ 2.y=x^3+4,\ \frac{dx}{dt} =2,\ for \ x=3,$

whenever it happens, this means the influence of t is hidden, and we only consider the result, that is, how much is x when the derivative has the value of 2, we are not concerned for what value of t it happens, since we get all the necessary information beforehand.

Now we need to calculate

$\frac{dy}{dx}=3x^2 \rightarrow \frac{dy}{dx}(3)=3(3)^2=27$ .

Therefore

$\frac{dy}{dt}(x=3)=\frac{dy}{dx} (x=3) * \frac{dx}{dt}(x=3)$ or

$\frac{dy}{dt}(x=3)=27 *2 = 54$ .

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4 years ago