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Marianna [84]
3 years ago
7

Find the missing part. use an improper fraction for your answer.

Mathematics
2 answers:
kap26 [50]3 years ago
7 0

Answer:

x= 15 over 2

   

Step-by-step explanation:

liubo4ka [24]3 years ago
6 0

Answer:

x = \frac{15}{2}

Step-by-step explanation:

We have that sin(\alpha) = \frac{side\ opositte}{hypotenuse}

Then:

sin(30) = \frac{x}{15}\\\\sin(30) = \frac{1}{2}\\\\\frac{1}{2} = \frac{x}{15}\\\\15(\frac{1}{2}) = x\\\\x = \frac{15}{2}

Finaly, the answer is \frac{15}{2}

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Alex787 [66]

Answer:

D = 3

Step-by-step explanation:

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3 years ago
Is 3x+15=3(x+5) a infinite solution one solution or no solution
aniked [119]

Answer:

Step-by-step explanation:it is infinite solution because 15 is equal to 15 if it was like 15=13 it is no solution

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LMNO is a parallelogram, with and . Which statements are true about parallelogram LMNO? Select three options.
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I believe the correct options are 1, 4, and 5.

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A fence is to be built to enclose a rectangular area of 260 square feet. The fence along three sides is to be made of material t
Nat2105 [25]

Answer:

Length of the rectangle = 9.58 feet and width = 27.14 foot

Step-by-step explanation:

Let the length of the rectangular area is = x feet

and the width of the area = y feet

Area of the rectangle = xy square feet

Or xy = 260

y = \frac{260}{x} -------(1)

Cost to fence the three sides = $3 per foot

Therefore cost to fence one length and two width of the rectangular area

= 3(x + 2y)

Similarly cost to fence the fourth side = $14 per foot

So, the cost of the remaining length = 14x

Total cost to fence = 3(x + 2y) + 14x

Cost (C) = 3(x + 2y) + 14x

C = 3x + 6y + 14x

  = 17x + 6y

From equation (1)

C = 17x+\frac{260\times 6}{x}

Now we take the derivative,

C' = 17 - \frac{1560}{x^{2} }

To minimize the cost of fencing,

C' = 0

17 - \frac{1560}{x^{2} } = 0

\frac{1560}{x^{2} } = 17

x^{2} =\frac{1560}{17}

x=\sqrt{\frac{1560}{17} }

x = 9.58 foot

and y = \frac{260}{9.58}

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4 0
3 years ago
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lana66690 [7]

Answer:

<em>(2x-y+2)(2x+y-2)</em>

Step-by-step explanation:

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=(2x)²-(y-2)²

= [2x-(y-2)][2x+(y-2)]

<em>=(2x-y+2)(2x+y-2)</em>

a²-b²=(a-b)(a+b)

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