All Questions
Huỳnh Anh Phương
04/07/2018 at 11:55-
There is no triangle with such sides. Check your problem again.
We normally use "side" rather than "edge" when referring AB, BC and CA.
Huỳnh Anh Phương selected this answer.
Lê Quốc Trần Anh Coodinator
04/07/2018 at 04:30
Lê Quốc Trần Anh Coodinator
04/07/2018 at 04:29
Lê Quốc Trần Anh Coodinator
04/07/2018 at 04:29-
Huỳnh Anh Phương 09/07/2018 at 00:47
oh sorry i mistaped. that will be 2025-2015 not 2025+2015. sorry about that. :(
-
Huỳnh Anh Phương 09/07/2018 at 00:46
If n and m are smallest number
=>2015 + n = 2025 2015 - m = 1936
n = 2025 + 2015 m = 2015 - 1936
n = 10 m = 79
=>n + m = 10 + 79 = 89
Lê Quốc Trần Anh Coodinator
04/07/2018 at 02:57-
Nguyễn Mạnh Hùng 05/07/2018 at 08:44We have: The 4-people pizza's area is: \(8^2\Pi=200,96\left(inch^2\right)\)
So each person can eat: \(\dfrac{200,96}{4}=50,24\left(inch^2\right)\)
=> 16 people eat: \(50,24.16=803,84\left(inch^2\right)\)
=> The suitalbe pizza has the diameter is: \(\sqrt{\dfrac{803,84}{3,14}}.2=32\left(inch\right)\)
Lê Quốc Trần Anh selected this answer.
Lê Quốc Trần Anh Coodinator
04/07/2018 at 02:56
Lê Quốc Trần Anh Coodinator
04/07/2018 at 02:56-
\(S_{ABC}=\dfrac{\left(13-11\right)\left(17-2\right)}{2}=\dfrac{2\cdot15}{2}=15\left(unit^2\right)\)
Lê Quốc Trần Anh selected this answer.
Lê Quốc Trần Anh Coodinator
04/07/2018 at 02:55-
Way 1: \(\left\{{}\begin{matrix}GCD\left(48;72\right)=24\\LCM\left(48;72\right)=144\end{matrix}\right.\)
So their product is: 24 . 144 = 3456
Way 2:
Their product is: 48 . 72 = 3456
Lê Quốc Trần Anh selected this answer.
Lê Quốc Trần Anh Coodinator
04/07/2018 at 02:53-
\(f\left(x\right)=3\Rightarrow\sqrt{x+4}=3\Rightarrow x+4=9\Rightarrow x=5\)
Lê Quốc Trần Anh selected this answer.
