5358 x 51 = ?

(4x + 51y + 1) (4x + 51y - 1) ___

If n(A)= 35 , n(B) = 20 and n(Auu B) = 51 find n(A nn B)

The densities of calcium (ca ) and barium (Ba ) are 1.55 and 3.51 g cm ^(-3) respectively based on Dobereiner's law of triads , can you give the approximate density of strotium (Sr ) ?

51.36 + 87.35 =___

Find the number of significant figures in the 4.51 xx 10^8

On random selection, the probability of getting a composite number among the numbers from 51 to 100.

Find the mean deviation about the median for the data in 36, 72, 46, 42, 60, 45, 53, 46, 51, 49