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Alex17521 [72]
2 years ago
10

Susan plans to use 120 feet of fencing to enclose a rectangular area for a garden. Which equation best models the area, y, of th

e rectangular garden that she creates if one side is x feet long?
Mathematics
2 answers:
mina [271]2 years ago
7 0
Well we set the perimeter to 120 feet.
This means that 2x+2y=120
Now we know the area of a rectangle is xy so we have to solve for both x and y in the perimeter equation.

2x=120-2y
x=60-y

2y=120-2x
y=60-x

Now we plug these values into our area equation A=xy to get:
A=(60-y)(60-x)
MAVERICK [17]2 years ago
7 0
Susan plans to use 120 feet of fencing to enclose a rectangular area for a garden. Which equation best<span> models the area, </span>y,<span> of the rectangular garden that she creates if one side is </span>x<span> feet long? A.</span> y=(60-x)(x)
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Fixed costs:
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Variable costs:
x * ( $6.50 + $3.64 ) = x * 10.14
Sales income ( total ):
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640 + 10.14 x - 36.40 x = 0
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Answer:
The minimum number of passengers needed per cruise, so that the cruise company can be sure it will make a profit is 25. 
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2 years ago
Find the length of the third side of the right triangle.
lara31 [8.8K]

Answer: you can use Pythagorean theorem , which formula is a^{2} + b^{2} =c^{2}, "a" and "b" are the sides, and "c" is the hypotenuse (the longest side, the side opposite to the 90 degree angle)

<em>Example:</em>

If they give that one side is 2 inches and the other side is 4 and you need to find the hypotenuse it would be like this:

1) plug the numbers to the formula

4^2 + 6^2 = c^{2}

2) solve the exponents of the numbers given (not the letter, in this case "c")

16 + 36 = c^2

3) combine like terms (in this case 16 +36)

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4) Finally, Find the square root of "c" to remove its exponent and do the same to the other side, in this case 52)

\sqrt{52}  = \sqrt{c}

(square root of 52 rounded to the nearest hundred is 7.21)

7.21 = c

<h3><u><em>So  7.21 is your missing side in this example</em></u></h3><h3>look up Pythagorean theorem Khan Academy</h3>
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Select all of the answers below that are equivalent to T = {Tinkey-Winky, Laa-Laa,
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Answer:

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The options that will be equivalent to T will have to be the options that have the same Cardinality as T. Cardinality refers to the number of elements in a set and in the set T, there are 4 elements being Tinkey-Winky, Laa-Laa,  Dipsy, Po so the Cardinality is 4.

The equivalent sets would therefore be sets with a cardinality of 4 as well and those are;

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