If x, y can take values from the set (1, 2, 3, 4), find the probability that the product of x and y is not greater than 6

For what value of x does 6 sin (2x - 25)o attain its maximum value in the range 0o \(\leq\) x \(\leq\) 180o

If \(1P03{_4} = 115_{10}\) find P

Evaluate 64.764\(^2\) - 35.236\(^2\) correct to 3 significant figures