Answer: 1³/₅ of cake left
Step-by-step explanation:
There were two cheesecakes.
One was taken and cut into 10 slices, 4 of which were sold. The remainder of Cake A is:
= 10 - 4
= 6 slices
1 cake and 6 slices are therefore left.
As the 6 slices were originally 10, this expression in fraction is:
= 6/10
= 3/5
There are therefore:
= 1³/₅ of cake left
3.8 Is the correct answer
The mean will be 12. To find the mean, add all values and divide by the number of values. 5+19=24, 24/2=12
-√4 + √(-48) + √121 + √(-108)
= -√(2²) + √(-1 • 3 • 4²) + √(11²) + √(-1 • 2² • 3³)
= -2 + 4√3 i + 11 + 6√3 i
= 9 + 10√3 i
I think it's C. (So sorry if I am wrong)
