A bag contains 5 red and 4 blue identical balls. Id two b...
A bag contains 5 red and 4 blue identical balls. Id two balls are selected at random from the bag, one after the other, with replacement, find the probability that the first is red and the second is blue
29
518
2081
59
Correct answer is C
n(red balls) = 5
n(blue balls) = 4
n(⟺) = 9
Hence, prob (R1, B2)
= 59×49
= 2081
Find n if log2 4 + log2 7 - log2 n = 1...
Evaluate 64.7642 - 35.2362 correct to 3 significant figures...
In the diagram, /MN/, /OP/, /QOP/ = 125o. What is the size of < MQR? ...
A pyramid is constructed on a cuboid. The figure has ...
Evaluate log5(0.04)log318−log32...
calculate the simple interest on N7,500 for 8 years at 5% per annum. ...