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katrin2010 [14]
3 years ago
11

PLEASE HELP ASAP!! VERY IMPORTANT!!!!! (NUMBER 15!!)

Mathematics
1 answer:
maria [59]3 years ago
5 0
The answer is c cause the answer is 16,741.55ft^2 and c is the closest to it
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In how many ways can Susan arrange 7 books into 5 slots on her bookshelf?
KatRina [158]

Answer:

  • 2520

Step-by-step explanation:

This is permutation question

<u>The formula for it: </u>

  • N = b!/(b-s)!, where N- number of ways, b- number of books, s- number of slots

<u>Finding the answer:</u>

  • N = 7!/(7-5)! = 7!/2! = 7*6*5*4*3 = 2520
7 0
3 years ago
Can you make a triangle with 5cm, 8cm, 15cm​
pshichka [43]

Answer:no because 2 sides of a triangle have to be equal to the other angle or greater than the other angle

Step-by-step explanation:

8 0
3 years ago
When using pi, do you use 3.14 or 3.141592653?
sergey [27]

Answer:

You would usually use 3.14

Step-by-step explanation:

It kind of depends on where you are using it. In an equation, pi would be used as 3.14 and the answer would be approximated. To write it anywhere else (I dont know where else you would though), you would do the pi symbol. I hope this helps.

4 0
3 years ago
Read 2 more answers
The circle below is centered at the point (4,3) and has a radius length 5. What is its equation
Crazy boy [7]
The equation of a circle centred at point (m,n) and radius r is given by

<span>(x-m)² + (y-n)² = r²
</span>-------------------------------------------------------------
Centre = (4,3)
radius = 5

Equation:
(x - 4)² + (y - 3)² = 5²
⇒ x² - 8x + 16 + y² - 6y + 9 = 25
⇒ x² + y² - 8x - 6y + 25 = 25
⇒ x² + y² - 8x - 6y = 0

The equation of the circle is x² + y² - 8x - 6y = 0

Hope it helps!
3 0
3 years ago
Read 2 more answers
Final question of the 9 and with most of the point i can give so people dont pour in
Mrrafil [7]

Answer:

A=49 degree

a=13.5

b=11.7

Step-by-step explanation:

8 0
3 years ago
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