Answer:
The answer is 40.8 m.
Step-by-step explanation:
To find the perimeter of the rectangle, use the formula P= 2(
)+ 2(
). Plug in the information given in the question, and the equation will look like
P= 2(12m) + 2(8.4m)
Solve the equation, and the final answer will be 40.8 m.
Answer:
EQUAL
Step-by-step explanation:
Answer:
Idk what u mean by fraction but 80% of 15 is 12
Step-by-step explanation:
If m ACD = 30 => m DCB = 60.
In triangle ACD:
![sin 30^{o}=sin \frac{AD}{AC} =\ \textgreater \ \frac{1}{2} = \frac{8}{AC} =\ \textgreater \ AC=16 ](https://tex.z-dn.net/?f=sin%2030%5E%7Bo%7D%3Dsin%20%20%5Cfrac%7BAD%7D%7BAC%7D%20%3D%5C%20%5Ctextgreater%20%5C%20%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%3D%20%20%5Cfrac%7B8%7D%7BAC%7D%20%3D%5C%20%5Ctextgreater%20%5C%20%20AC%3D16%0A)
![CD= 8 \sqrt{3}](https://tex.z-dn.net/?f=CD%3D%208%20%5Csqrt%7B3%7D%20)
![BC= 16\sqrt{3}](https://tex.z-dn.net/?f=BC%3D%2016%5Csqrt%7B3%7D%20)
AC^{2}+CB^{2}=AB^{2} => AB=
![\sqrt{1024}](https://tex.z-dn.net/?f=%20%5Csqrt%7B1024%7D%20)
=32.
=> P=16+32+
![16 \sqrt{3}](https://tex.z-dn.net/?f=16%20%5Csqrt%7B3%7D%20)
=48 +
![16 \sqrt{3}](https://tex.z-dn.net/?f=16%20%5Csqrt%7B3%7D%20)
.
Step-by-step explanation:
√3 x² - 2x - √3 = 0
√3 x² - 3x + x - √3 = 0
√3 x(x - √3) + 1(x - √3) = 0
(x - √3 ) (√3 x + 1) = 0
x - √3 = 0 , √3 x +1 = 0
x = √3 , x = -1/√3