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ad-work [718]
3 years ago
5

You are helping your dad build a rectangular dog park. The length of the dog park in feet can be represented by 8 + 2 and the wi

dth in feet can be represented by 2 − 12. If your dad bought 160 feet of fencing (perimeter), what is the length of the dog park and what is the width of the dog park?
Mathematics
1 answer:
Goryan [66]3 years ago
5 0

Answer:

74 feet and 6 feet

Step-by-step explanation:

Mentioned that

The  Length of the dog park is = (8x + 2)............(i)

And,

The Width of the park is = (2x -12)..................(ii)

Perimeter = 160 feet

Now here we use the perimeter formula which is

Perimeter is

= 2 (length + width)

160 = 2 (8x + 2 + 2x - 12)

160 = 2 (10x - 10)

160 = 20x - 20

180 = 20x

x = 9

Now put the x value into the equation 1 and equaton 2

For the equaton 1, the length us

= 8x + 2

= 8(9) + 2

= 74 feet

And, the width is

= 2x - 12

= 2(9) - 12

= 18 - 12

= 6 feet

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All we need to do to get the equation in slope-intercept form is to divide each term by 3. This will isolate the y.

y= \frac{2}{3}x-2

As you can see, the slope of the line is 2/3, and the y-intercept is -2.

To graph the line, plot a point at (0,-2). This is the point where the graph crosses the y axis. Then from that point, count up two and right 3. Plot a point here as well. Lastly, connect the two points with a straight line.

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4 years ago
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Darya [45]

Answer:

4.4 inches

Step-by-step explanation:

Here, we are interested in calculating the value of x.

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2 years ago
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Answer:

P(B1) = (11/15)

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Step-by-step explanation:

There are 11 red chips and 4 blue chips in a box. Two chips are selected one after the other at random and without replacement from the box.

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3 years ago
If $3,000,000 is invested at 6% interest compounded continuously, how much
g100num [7]

Answer:

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Step-by-step explanation:

The formula for the value as a function of time is ...

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Filling in the numbers and doing the arithmetic, we have ...

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Compounded continuously for 35 years, the investment will be worth $24,498,509.74.

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4 years ago
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