A sightseeing balloon is 280 feet high. The angle of depression to a car in the parking lot is 28°.
What is the distance on the ground from the point
directly under the balloon to the car?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.