Find the roots of the following factored quadratic equation.
y = (4x - 7) (8x +9)


What is the domain of the of the exponential function shown below?

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.

Acone with radius 5 cm and height 12 cm how many cm ?