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e-lub [12.9K]
3 years ago
5

A typical music CD has a diameter of 5 inches. How does the diameter compare to the circumference of the CD?

Mathematics
1 answer:
Mrrafil [7]3 years ago
7 0

Answer:

D

Step-by-step explanation:

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Gallons, it's the largest unit that you're given and swimming pools obviously have a lot of water in them
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The playground at a park is shaped like a trapezoid the dimensions what is the area of the playground in square feet
Maru [420]

Answer:

Area = 1560ft^2

Step-by-step explanation:

Given

See attachment for playground

Required

Determine the area

The playground is a trapezoid. So;

Area = \frac{1}{2}(Sum\ parallel\ sides) * Height

From the attachment, the parallel sides are: 68ft and 36ft

The height is: 30ft

So, the area is:

Area = \frac{1}{2}(68ft + 36ft) * 30ft

Area = \frac{1}{2}(104ft) * 30ft

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5 0
3 years ago
Rewrite the equation by completing the squares x^2-x-20
yuradex [85]

Answer:  x = ¹/₂ ± √⁸¹

                     ------------

                            2

Step-by-step explanation:

First write out the equation

x² - x - 20

Now we now write the equation by equating to 0

x² - x - 20 = 0

We now move 20 to the other side of the equation. So

x² - x    =  20,

We now add to both side of the equation square of the half the coefficient of the (x) and not (x²) which is (1) . So, the equation now becomes

x² - x + ( ¹/₂ )² = 20 + ( ¹/₂ )²

x² - ( ¹/₂ )²       = 20 + ¹/₄

( x - ¹/₂ )²       = 20  + ¹/₄, we now resolve the right hand side expression into fraction

( x - ¹/₂ )²          =  ⁸¹/₄ when the LCM is made 4

Taking the square root of both side to remove the square,we now have

x - ¹/₂               =  √⁸¹/₄

x - ¹/₂               =     √⁸¹/₂

Therefore,

                    x = ¹/₂ ± √⁸¹

                          -----------

                               2

3 0
3 years ago
Two random samples were taken to determine how often people in a community listen to the local radio station each month.
tangare [24]
I do not get what the Question that you are asking is.

4 0
3 years ago
X2 +8x+16=0 in factoring algorithm
Setler79 [48]

Answer:

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Step-by-step explanation:

x2 +8x+16=0

What 2 numbers multiply to 16 and add to 8

4*4 = 16

4+4 =8

(x+4) (x+4) =0

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4 0
2 years ago
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