Three circles are placed in a rectangle with width

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coco6687

15.02.2022

Mathematics

area of rectangle

7x(7x2x3)

=294

area of 3 semicircles

7x2x3.14x0.5x3

=65.94

Answer

294-65.94

=228.06cm2

Step-by-step explanation:

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Ответ:

danuwell

02.11.2021

Mathematics

The keyword here is "arrangements." it implies that order matters.this is a permutations question. you have a set of 14 and finding the number of arrangements when you take 4 at a time. $\begin{aligned} _{14}p_4 & = \dfrac{14! }{(14-4)! } \\ & = \dfrac{14 \cdot 13 \cdot 12 \cdot 11 \cdot 10! }{10! } \\ & = 14 \cdot 13 \cdot 12 \cdot 11 \\ & = 24\: 024 \end{aligned}$ 24024 different arrangements.

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Three circles are placed in a rectangle with width 12 cm, as shown below. Find the area of the shaded region. Use the value 3.14 for pi, and do not round your answer.

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