Answer:
138picm2
Step-by-step explanation:
An hemisphere is half of a sphere. This means a sphere is twice an hemisphere .
Surface area of sphere of same radius = twice surface area of hemisphere
Therefore
Surface area of sphere = 2 * 69
= 138 pi cm2
I hope this was helpful, Please mark as brainliest
Ali is correct because you shouldn’t deliver the minus in the 5b number
Answer:
c
Step-by-step explanation:
use multiplication rule.
1/6 for landing a 2 on the cube and 1/3 for landing a 3 on the spinner
Answer: Marked price Rs. 600
Step-by-step explanation:
Let M be the marked price
1) When shop keeper sold at 20% discount, ie. SP = 0.8M
CP - SP = 20
CP = 20 + SP
CP = 20 + 0.8M
2) When shopkeeper sells at 8% discount, he makes a profit of 10%
SP = 0.9M/1.08
Equating 1 and 2, we get
20 + 0.8M = 0.9M/1.08
21.6 + 0.864M = 0.9M
0.036 M = 21.6
M = 21.6 / 0 036
M = 600
45 times 1.065=47.925 which would be $47.93... hope that helps