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4 years ago

Which of equation represents a function? A. x2 + y2 = 9 B. {(4, 2), (4, –2), (9, 3), (9, –3)} C. x = 4. 2x + y = 5

1 answer:

3 0

The answer to your questions is B. {(4, 2), (4, –2), (9, 3), (9, –3)} because you don't have a repeat of a number the X side which is your output. I hope that this is the answer that you were looking for and it has helped you.

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What's the correct name for the polygon below?

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3 years ago

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Find the density of an object that has a volume of 20 cm3 and a mass of 56g

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Answer: 34y

Step-by-step explanation:

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3 years ago

Increase £16470.45 by 3.5%

Korvikt [17]

Try this:
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3 years ago

If the sum of the interior angles of a polygon is 1800º, how many sides does it have?

solmaris [256]

Answer:

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Step-by-step explanation:

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3 years ago

The base of a rectangle is 6cm longer than its height. The area of a rectangle is 91cm squared. What is the perimeter of the rec

r-ruslan [8.4K]

Width = 7cm

Length = 13cm

<u>Explanation:</u>

Area of rectangle = $91cm^{2}$

Let width of the rectangle = b ,

So, length = b+6

Area of rectangle = (length X width) - eqn 1

Putting the value of length and width in above equation 1,

$91cm^{2} = b (b+6)\\91 = b^{2}+6b\\b^{2} + 6b-91 = 0\\$

On solving the quadratic equation we get,

b = 7cm

So, width (b) = 7cm

and length = 7+6

l = 13cm

Hence,

Width = 7cm

Length = 13cm

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4 years ago