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stealth61 [152]
4 years ago
12

Consider the rational equation 1/R=(1/x)+(1/y).Solve this equation for R, and write R as a single rational expression in lowest

terms.
Mathematics
1 answer:
lina2011 [118]4 years ago
8 0

Answer:

R =  \frac{xy}{y+x}

Step-by-step explanation:

Given rational equation in the question as:

\frac{1}{R}=\frac{1}{x}+\frac{1}{y}

To solve:

R as a single rational expression

Now considering the equation

⇒ \frac{1}{R}=\frac{1}{x}+\frac{1}{y}

or

⇒ \frac{1}{R}=\frac{y+x}{xy}

or

⇒ on rearranging the above equation to  find the value of R as a single rational expression, we get

R =  \frac{xy}{y+x}

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Statement is incorrect. Correct form is presented below:

<em>The height </em>h(t)<em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em>h(t) = 3 +90\cdot t -16\cdot t^{2}<em>, where </em>t<em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>

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Step-by-step explanation:


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