Answer:
B. 100π
Step-by-step explanation:
The surface area of a sphere is given by
SA = 4 pi r^2
The radius is 5
SA = 4 * pi * r^2
SA = 4 * pi * 25
SA = 100 pi
Answer:
20.3 units
Step-by-step explanation:
AB/CB = BD/AB
9/CB = 4/9
CB = 9×9/4
CB = 81/4 = 20¼ units
20.25 (20.3 units correct to 1 dp)
Hey there Altagraciasouth :)
Significant Figure Question:
**Question 4162 to 3 SF
Explanation:
We first have to look for the third number in 4162. That would be 62!
So we round 62 to the nearest ten. Which gives us 60!
**Answer: 4160
Hope this helped :)
Answer:
3 + 9i
Step-by-step explanation:
(4 + 2i) - (1 - 7i)
distribute the (-)
(4 + 2i) - 1 + 7i
combine like terms
3 + 9i
28x + 8y + 2 is the simplified version.