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Citrus2011 [14]
3 years ago
7

Cd is 1/20 inch thick if you have 52 CD's what is the height of the stack

Mathematics
2 answers:
vichka [17]3 years ago
8 0
Please mark as brainliest!

So each cd is 1/20 thick. so take 20 away from 52 because we know it'll equal 1 inch. Do it again from the remaining 32 and we are left with 12. 
Your answer is 2 and 12/20 inches thick or it can be reduced to 3/5

Final answer is 20 3/5
Karo-lina-s [1.5K]3 years ago
5 0
To get the answer you divide the cds by 2 because the CD's are 1/2 in thick to get: 26 in
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Please help me thanks!
Svetlanka [38]

The area of the hexagon with side length 5ft and radius 5ft is 64.95 square feet.

<h3>What is a hexagon?</h3>

A hexagon is a polygon with 6 sides.

Analysis:

Find in the attached file the analysis.

In conclusion, the area of the hexagon is 64.95 square ft.

Learn more about regular hexagon: brainly.com/question/1601601

#SPJ1

5 0
2 years ago
How much money does the average professional hockey fan spend on food at a single hockey​ game? That question was posed to 10 ra
Vinil7 [7]

Answer:

Now we have everything in order to replace into formula (1):

18-2.262\frac{2.75}{\sqrt{10}}=16.03    

18+2.262\frac{2.75}{\sqrt{10}}=19.97    

Step-by-step explanation:

Information given

\bar X=18 represent the sample mean

\mu population mean (variable of interest)

s=2.75 represent the sample standard deviation

n=10 represent the sample size  

Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

The degrees of freedom are given by:

df=n-1=10-1=9

The Confidence is 0.90 or 90%, the significance is \alpha=0.1 and \alpha/2 =0.05, and the critical vaue would be t_{\alpha/2}=2.262

Now we have everything in order to replace into formula (1):

18-2.262\frac{2.75}{\sqrt{10}}=16.03    

18+2.262\frac{2.75}{\sqrt{10}}=19.97    

5 0
3 years ago
5. Bill is planning to paint the back of his house. If the paint costs $2 a square
USPshnik [31]

Answer:

$462.86

Step-by-step explanation:

8 0
3 years ago
What is the product of 2x + y and 5x – y + 3?
Radda [10]

Answer:

The product of 2x + y and 5x – y + 3 is 10x^2+ 3xy + 6x - y^2 + 3y

Step-by-step explanation:

The product of the two expressions can be expressed mathematically as;

(2x +y) (5x -y +3)

To obtain the product of these expressions, we simply expand the brackets as follows;

2x(5x -y +3) + y(5x -y +3)

= 10x^2 - 2xy + 6x + 5xy - y^2 + 3y

= 10x^2- 2xy + 5xy + 6x - y^2 + 3y

= 10x^2+ 3xy + 6x - y^2 + 3y

The product of 2x + y and 5x – y + 3 is thus 10x^2+ 3xy + 6x - y^2 + 3y

5 0
3 years ago
Read 2 more answers
Find the value of x and y of the equilateral triangle. I need it ASAP
katrin2010 [14]

Answer:

x=12, y=30

Step-by-step explanation:

to find x:

in a equilateral triangle, all three sides are congruent, so:

4x-4=3x+8

x-4=8

x=12

to find y:

in an equilateral triangle, all the angles are 60°, so:

2y=60

y=30°

7 0
3 years ago
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