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Heygirl1923
22.10.2020 •
Mathematics
For which function is f(5) = 2?
.X
y
101
8
1
3
f(x) = x-3
2
5
7
6
5
4
3
7
3
2
4
9
O
Solved
Show answers
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Ответ:
c = 11.3 mi/h
Step-by-step explanation:
Since Square has all of the same sides, hence bobs speed will be the same for all of the sides.
All of the sides are equal in a square
=> Let's consider the two sides along with the diagonal a right angled triangle
=>![c^2 = a^2 + b^2](/tpl/images/0711/3520/4f92c.png)
Where c is the speed of Rob along the diagonal and b and c is the speed of Bob along the side
=>![c^2 = 8^2+8^2](/tpl/images/0711/3520/dd9c0.png)
=>![c^2 = 64+64](/tpl/images/0711/3520/89f13.png)
=>![c^2 = 128\\](/tpl/images/0711/3520/63079.png)
Taking sq root on both sides
=> c = 11.3 mi/h