Find 36 - (-64) and (-64) - 36. Are they equal?

The regression coefficients of a bivariate distribution are -0.64 and -.36 . Then the correlation coefficient of the distribution is

Find the HCF of the 36 and 64

In /_ABC, if /_A=36^(@) and /_B=64^(@) name the longest and shortest sides of the triangle.

Show that the eccentricities of the two hyperbolas (x^(2))/(16) - (y^(2))/(9) = 1 and (x^(2))/(64) - (y^(2))/(36) = 1 are equal.

Simplify: (3.6+6.4) (3.6-6.4) - (3.6-6.4)^(2) = ?

Show that the eccentricities of the two hyperbolas x^2/16-y^2/9=1 and x^2/64-y^2/36=1 are equal.

Show that the eccentricities of the hyperbolas x^2/16-y^2/9=1 and x^2/64-y^2/36=1 are equal.

121 ? 81 64 49 36 25

If (64)^2 - (36)^2 = 20 k then the value of k is :