" (e) "4(2-x)=8

State which of the following are equations (with a variable). Give reason for your answer. Identify the vaeiable from the equations with a variable. (e) 5×4-8=2x

Check whether the following equations are consistent or inconsistent. Solve them graphically. (e) (4)/(3) x + 2y = 8 2x + 3y = 12

The maximum value of x^4e^ (-x^2) is (A) e^2 (B) e^(-2) (C) 12 e^(-2) (D) 4e^(-2)

The maximum value of x^4e^ (-x^2) is (A) e^2 (B) e^(-2) (C) 12 e^(-2) (D) 4e^(-2)

The maximum value of x^4e^ (-x^2) is (A) e^2 (B) e^(-2) (C) 12 e^(-2) (D) 4e^(-2)

" (2) "int(e^(x)dx)/(e^(2x)+4)

The random variable X has variance 4 and E(x^(2))=8 , then the mean of x is