A cheetah travels an average of 40 mph to go from a rock to the river. On its return trip it travels 70 mph. If it traveled for 15 minutes, how many minutes did the return trip take...to the nearest minute and second.

How do i do this activity, is appreciated

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

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?