The radius of the sphere decreases at the rate of 6 m/ sec
That is,
Surface Area of the sphere of radius r is given by
Differentiating with respect to t,
Answer:
63 degrees
Step-by-step explanation:
(180-54)/2=126/2=63
Answer: 2.01
Explanation: I rounded 22.11 two 22. So when you divide it by eleven is 2. Then you divide 11 by 11. Which is one, and it seems it was in the hundreths place so you add a cero before the one.
Aliaa got a mark of 60 in her first 4 tests, so her total mark is 60 x 4 = 240. On her fifth test, she got a mark of 80.
So her average is:
(240+80)/5 = 320/5 = 64
Her avg is 64 (c).