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murzikaleks [220]
3 years ago
12

A blueprint for a new triangular playground shows that the sides

Mathematics
1 answer:
skad [1K]3 years ago
8 0

Yes, the playgrounds shape is the right angle triangle.

Step-by-step explanation:

The sides of the triangular ground are 480 ft. 140 ft. And 500ft.

We can find if the sides given are the sides of a right triangle by using pythogoras theorem.

Here, the largest side is 500ft.

So,

√[(480x480) +(140x140) ]

= √[(230400) +(19600) ]

= √(250000)

= 500

The pythogoras theorem is proved.

So, the playground is in the shape of triangle.

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Answer:

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4 0
3 years ago
A survey was conducted that asked 1003 1003 people how many books they had read in the past year. results indicated that x overb
kirill115 [55]
The confidence interval is

10.5\pm1.35 = (9.15, 11.85).  This means that we can be 99% confident that the mean number of books people read lies between 9.15 and 11.85.

To find the confidence interval, we first find the z-score associated with it:

Convert 99% to a decimal:  0.99
Subtract from 1:  1-0.99=0.01
Divide by 2:  0.01/2 = 0.005
Subtract from 1:  1-0.005 = 0.995

Using a z-table (http://www.z-table.com) we see that this is associated with a z-score between 2.57 and 2.58.  Since both are equally far from this value we will use 2.575.

We calculate the margin of error using

ME=z*\frac{s}{\sqrt{n}}
\\
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10.5\pm1.35

The lower limit is given by 10.5-1.35 = 9.15.
The upper limit is given by 10.5+1.35 = 11.85
5 0
3 years ago
Reduce this fracton to lowest terms : 42/49
lesantik [10]
6/7 
Hope it helps Love.
-Joker7721
5 0
3 years ago
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A book is 11.7 inches long and 8.5 inches wide.there are 375 words on a page. The area of the page is sq. In. The density of the
UNO [17]
The area of the page = 11.7 x 8.5 = 99.45 square inches

divide the number of word by the area:

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8 0
3 years ago
Applying the Quotient of Powers Rule<br> What is the quotient?<br> - Ο Ο Ο Ο<br> a o 0 0 0<br> 78
ale4655 [162]
Answer:-
The question ain’t ryt dude,
I will answer as soon as u correct it
6 0
3 years ago
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