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Alinara [238K]
3 years ago
10

​Parallelogram ABCD​ is a rectangle. AC=2y+7 BD=3y−4 What is the value of y?

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
7 0

Answer:

You didn't attach an image so I will assume that AC and BD are opposite sides. In a parallelogram, opposite sides are congruent which means:

2y + 7 = 3y - 4

-y = -11

y = 11

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Write the equation 9y = 12x + 0.2 in standard form. Identify A, B, and C.
uysha [10]

Answer:

A = -12, B = 9 and C = .2

Step-by-step explanation:

So it just looks like we need to use algebra to move everything around to get it in the form Ax + By = C

So, let's start with 9y = 12x + 0.2.  From standard form we have all terms wth variables on one side, so let's do that.  the right sie has both a variable term and non variable term, so let's get rid of the variable term.  The variable term is 12x, so to get rid of it you subtract 12x from both sides.

9y = 12x + 0.2

9y - 12x = 0.2

To make it exactly in standard form just rarrnge.

-12x + 9y = 0.2

So now we have A = -12, B = 9 and C = .2

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3 years ago
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adell [148]

Answer:

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Step-by-step explanation:

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Answer:

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The sum of a number and 20 is no more than the sum of the square of the number and 9.
aniked [119]

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break down the word problem.

You also have to recognize key words which figure into mathematical symbols.

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