Angles ∝ and β are the two acute angles in a right triangle. use the relationship between sine and cosine to find the value of ∝ if ∝ < β. sin(2x - 8) = cos(6x - 6) a) 13° b) 18° c) 72° d) 77°

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old

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.