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3 years ago

Steve built a square dog pen that has a perimeter of 240 inches. What is the length of one side of Steve's dog pen?

1 answer:

6 0

Perimeter of a square=4 x side
Data:
Perimeter=240 in

Then:
240 in=4* side
side=240 in/4
side=60 in.

answer: The lenght of one side of Steve´s dog pen is 60 in.

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Derive the equation of the parabola with a focus at (0, −4) and a directrix of y = 4.

Goshia [24]

$\sqrt{(x_{0} - 0)^{2} + (y_{0} - (-4))^{2}} = |y_{0} - 4|$
<span> $\sqrt{(x_{0} - 0)^{2} + (y_{0} + 4)^{2}} = |y_{0} - 4|$
</span> $(x_{0} - 0)^{2} + (y_{0} + 4)^{2} = (y_{0} - 4)^{2}$
$(x_{0})^{2} + (y_{0} + 4)^{2} = (y_{0} - 4)^{2}$
$x_{0}^{2} + (y_{0}^{2} + 4y_{0} + 4y_{0} + 16) = y_{0}^{2} - 4y_{0} - 4y_{0} + 16$
$x_{0}^{2} + (y_{0}^{2} + 8y_{0} + 16) = y_{0}^{2} - 8y_{0} + 16$
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$x_{0}^{2} + 16y_{0} = 0$
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The answer is C.

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3 years ago

Write 15/20 in simplest form.<br> P.S. Please have a clear explanation for me to understand.

antiseptic1488 [7]

Answer:

15/20 in simplest form is 15/20

Step-by-step explanation:

you cant split it any other way, since if you divide by 2, it would be 7.5/10

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3 years ago

If 7 is added to a number then it becomes at least 15 what is the number?

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4 years ago

Read 2 more answers

one night a theater sold 548 movie tickets. an adult’s costs $6.50 an child’s cost $3.50. in all, $2,881 was takin in. how many

gavmur [86]

Answer:

321 adult tickets
227 child tickets

Step-by-step explanation:

This sort of problem is easily solved by defining a variable to be the quantity of the higher-value contributor. Here, we can let x represent the number of adult tickets. Then total revenue is ...

6.50x +3.50(548-x) = 2881

3x +1918 = 2881 . . . . . . . . . . . . eliminate parentheses, collect terms

3x = 963 . . . . . . . . . . . . . . . . . . subtract 1918

x = 321 . . . . . . . . . . . . . . . . . . . . divide by 3

548-x = 548 -321 = 227 . . . . . .number of child tickets

321 adult tickets and 227 child tickets were sold.

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3 years ago

What is the common ratio of the geometric sequence below?<br> -2, 4, 8, 16, -32, ...

Crazy boy [7]

Answer: No real answer

Step-by-step explanation:

4/-2 = -2

8/4 = 2

16/8 = 2

-32/16 = -2

The ratio is not equal and the sequence is not geometrical

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2 years ago