Answer:
No, because 6² + 8² ≠ 12²
Step-by-step explanation:
In a right angled triangle,
Perpendicular² + Base² = Hypotenuse² (pythagoras theorem)
But in the given triangle; 6² + 8² ≠ 12²
36 + 64 ≠ 144
100 ≠ 144
Perpendicular² + base² ≠ hypotenuse²
Thus the given triangle is not right angled.
Answer:
-124
Step-by-step explanation:
The equation for a discriminant is:
![b^{2} -4ac](https://tex.z-dn.net/?f=b%5E%7B2%7D%20-4ac)
So for
![7x^{2} -4x +5=0](https://tex.z-dn.net/?f=7x%5E%7B2%7D%20-4x%20%2B5%3D0)
a = 7 b = - 4 c = 5
Plug values into the equation.
![(-4)^{2} -4(7)(5)](https://tex.z-dn.net/?f=%28-4%29%5E%7B2%7D%20-4%287%29%285%29)
16 - 140 = -124
Area=height times base (for some prisms including cylinders)
vcylinder=hpir²
h=height
therefor pir²=base area
vcylinder=height times aeraofbase
given
h=9
v=324pi
324pi=9(basearea)
divide both sides by 9
36pi=areabase
the area of the base is 36pi square cm (put 36 in the blank since the pi is already there)
Answer:
its A.
Step-by-step explanation: