3 years ago

Someone please help me

Mathematics

1 answer:

Anika [276]3 years ago

6 0

Answer:

Step-by-step explanation:

Given

a = $\frac{1}{x}$ - $\frac{1}{y}$ = $\frac{y-x}{xy}$ ← as a single fraction

Thus

$\frac{1}{a}$ = $\frac{1}{\frac{y-x}{xy} }$ = $\frac{xy}{y-x}$ → A

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3 years ago

Pls help with this math problem

valentinak56 [21]

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2 years ago

K=d d=5 find k<br><br><br> Determine the value of the indicated variable

svet-max [94.6K]

K=d
d=5

Since K is equal to d, and d is 5, the value of K is 5.

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4 years ago

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Write an equation of the line that passes through (18, 2) and is parallel to the line 3y−x=−12

rodikova [14]

First isolate the "y" in the equation.

2y - x = -12 Add x on both sides

2y - x + x = -12 + x

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$y = -6 + \frac{x}{2}$

Your slope is $\frac{1}{2}$ .

For the equation of the line to be parallel to the given equation, the slopes have to be the same. So the parallel line's slope is also $\frac{1}{2}$

y = mx + b

$y = \frac{1}{2}x + b$

To find "b", you plug in the point (18,2) into the equation

$y = \frac{1}{2}x + b$

$2 = \frac{1}{2}(18) + b$

2 = 9 + b Subtract 9 on both sides

2 - 9 = 9 - 9 + b

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Your equation is:

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3 years ago

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8090 [49]

Answer:

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Step-by-step explanation:

36 / 12 = 3

.................................................

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3 years ago

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