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3 years ago

8

Fourteen increased by twice a number is less than or equal to three times the number.find the number that this relationship sati

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1 answer:

kipiarov [429]3 years ago

4 0

If its 14+2x less than or equal to 3x the answer is x is greater than or equal to 14

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The frequency of a radio wave varies inversely with its wavelength. If a 100-meter wave has a frequency of 3,000 kilohertz, what

Zarrin [17]

$\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \textit{frequency varies inversely with its wavelength}\qquad f=\cfrac{k}{w}
\\\\\\
\textit{we also know that }
\begin{cases}
w=100\\
f=3000
\end{cases}\implies 3000=\cfrac{k}{100}
\\\\\\
300000=k\qquad thus\qquad \boxed{f=\cfrac{300000}{w}}
\\\\\\
\textit{now, when f = 500, what is \underline{w}?}\qquad 500=\cfrac{300000}{w}
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w=\cfrac{300000}{500}\implies w=600$

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3 years ago

Is the following relation a function

sashaice [31]

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3 years ago

Find chase's mistake

alekssr [168]

This is no mistake he is the one

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3 years ago

Just checking, am I correct?

vredina [299]

Answer: yes!

Step-by-step explanation:

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Read 2 more answers

Can some one pls help

siniylev [52]

Answer:

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Step-by-step explanation:

(y2-y1)/(x2-x1)=m

In your scenario:

(7-(-2))/(-6-(-7))=m

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3 years ago