Find the value of x such that 25+22+19+16 +….+ x=112

Find the value of x , 3/5 = x/-25

Find the value of x of equation x^2=16

Find the value of : -19-(-16)

Find the value of : -19-(-16)

Find the value of x when 36: x::x:16.

Find the value of x in each of the following : 16 : x : : x : 25

Find the approximate value of f(x) = x^3 + 5 x^2 -7x + 10 at x=1.12

If the mean of the data 3,21,25,17,(x+3),19,(x-4) is 18, find the value of x. Using this value of x. find the mode of the data.

Find the values of k, if the equation 8x^(2)-16xy + ky^(2) - 22x + 34y = 12 respresents an ellipse.