The surface area of a sphere of radius r is A = 4π*r^3.
Since the radius in this case is 7 cm (half the 14 cm diameter), the area of this sphere is
A = 4π(7 cm)^2, or 196π cm^2.
Answer:
5.3
Step-by-step explanation:
-2r+3s
Let r=-8.2 s=-3.7
-2(-8.2) +3(-3.7)
16.4-11.1
5.3
Answer:
C.45
Step-by-step explanation:
I got this answer by subtracting 225 from 270 and got 45. Then did the same with the other times.
I hope this explanation was helpful.
Answer:
Option C.
Step-by-step explanation:
Given: In 
.
In 
,
(Angle sum property)
Now,
In a triangle, the greatest angle has largest opposite side and smallest angle has smallest opposite side. So, we conclude that
Therefore, the correct option is C.
Let's assign some random values to it, and say 1 unit of petroleum costs 100 bitcoins, because we all know bitcoins are the best currency :P
If the price goes up by 10%, it is now 100*1.1 = 110bitcoins for 1 unit.
However he's only getting 0.9 units now, so multiplying 110 by 0.9 gives us 99 bitcoins. His petroleum bill used to be 100 (which is why I picked 100 as it's easier), and now it is 99. Therefore his petroleum bill has reduced by 1%
