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Ainat [17]
3 years ago
14

A kennel owner has 400 feet of fencing to enclose a rectangular dog exercise pen. Express the area of the exercise pen, A, as a

function of one of its dimensions, x. A(x) = x(x - 200) A(x) = x(x - 200) A(x) = x(400 - x) A(x) = x(400 - x) A(x) = x(200 - x) A(x) = x(200 - x) A(x) = (200 - x)2
Mathematics
1 answer:
DENIUS [597]3 years ago
3 0

Answer:

A(x) = x(200-x)

Step-by-step explanation:

400 feet of fencing to enclose a rectangular dog exercise pen means the perimeter of rectangle is 400 feet

If x is length and y is breadth. Perimeter is given by :

P = 2(x+y)

400 = 2(x+y)

⇒ (x+y) = 200 .....(1)

y = 200-x

Area of a rectangle is given by :

A = xy

A(x) = x(200-x)

Hence, the area as a function of length of rectangle is x(200-x).

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7 0
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Someone help me solve this and could you explain why too?
yulyashka [42]

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3.5

Step-by-step explanation:

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There is a Minecraft sale for 30% off all games. Which expression represents the total cost of Minecraft Dungeons if it cost x d
diamong [38]

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The expression x-0.3x represents the total cost of Minecraft Dungeons.

Step-by-step explanation:

Given that:

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3 0
3 years ago
Read 2 more answers
Solve for c : <br> 6/13=3/c
nexus9112 [7]
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7 0
3 years ago
40 POINTS Geometry homework
kicyunya [14]

\angle{DBC   }=(5x+4)°

\angle{ A  }=(2x-2)°

\angle{C   }=(4x-6)°

we know that,

\angle{DBC}=\angle{A}+\angle{C}

According to the question,

\tt{ 5x+4=2x-2+4x-6  }

\tt{ 5x+4=6x-8  }

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\angle{C }=(4x-6)°=(4×12-6)°=(48-6)°=42°

6 0
2 years ago
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