Q2) An electrical overhead transmission line has a length of 80m between its supports at 15°C. Its length increases by 92mm at 65°C. Determine the coefficient of linear expansion of the material of the line.

Find the domain and range of the following function f(x) = 51x - 21+ 4

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42