-67
-57
-1
3
Correct answer is C
((1 x5x1) +( 3x6x2) + (3x4x0)) - ((3x5x2) + (1x6x0) + (3x4x1))
( 5 + 36) - (30 +12) = 41 - 42
= -1
Find the probability that a number selected at random from 40 to 50 is a prime ...
Calculate, correct to three significant figures, the length AB in the diagram above. ...
If x - 3 is directly proportional to the square of y and x = 5 when y =2, find x when y = 6. ...
The fifth term of an A.P is 24 and the eleventh term is 96. Find the first term. ...
Find the sum of the first 18 terms of the progression 3, 6, 12...... ...