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3 years ago

2xy +1 = 1 solve for x

Mathematics

2 answers:

seropon [69]3 years ago

8 0

Answer:

the answer of this question is 0

Alchen [17]3 years ago

6 0

A. First, convert this equation into y-intercept form

y = 2x + 1

B. 2 is the slope: 1 is the y-intercept

Then, plug in 1 for <em>y</em> and solve

C. 1 = 2x + 1

Therefore, x is 0

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KATRIN_1 [288]

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2 years ago

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There are 12 contestants in a coloring contest. Three ribbons will be awarded. How many different ways could the ribbons be awar

Elanso [62]

Answer:

1320 ways

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Here we have a situation where 3 ribbons will be awarded to 3 of the 12 contestants. We can use the permutation formula, because the order of awarding the ribbons matters.

The permutation formula is:

$_{n}P_{k}=\dfrac{n!}{(n-k)!}$

n = 12

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Now that we have our variables, let's plug them into the formula.

$_{12}P_{3}=\dfrac{12!}{(12-3)!}$

$_{12}P_{3}=\dfrac{12!}{9!}$

$_{12}P_{3}=1320$

So there are 1320 different ways that the contestants will be awarded.

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