6. From a bag containing 4 black balls and 5 white balls, two balls are drawn one at a time. Find the probability that one ball is white, and one ball is black. Assume that the first ball is returned before the second ball is drawn. O 16/81 25/81 20/81 40/81

Q: 7/3+4/5+1/3=

A: Given: 73+45+13 To find: We have to calculate the value.

Q: Sum of seriy n=1 2"+1 4ª

A: Explanation of the answer is as follows

Q: 1

A:

Q: Find 2 6 [["² 4 xy dydx.

A:

Q: What is AC? A В

A:

Q: 51. 2 In 2 -

A: From the data:

Q: Find (2a° + 3x*) dæ + C

A: We evaluate given integral

Q: 5* dx

A: To solve this problem we have to use substitution method firstly and then exponential rule of…

Q: I ū as a de cimal

A:

Q: 16. z-313 = 176

A: 16) The given equation is z-313=176.

Q: 1/3+4/5=

A:

Q: eto elerminant 3 3 7 6 6 24

A: 5400601337002660024400001 along first column  51337026602440001 again along first  column 5266244001…

Q: 0.6 T² 9 - 25x² dx

A: The given integral is x2/sqrt(9-25x2), limit from 0 to 0.6.