A circle with radius 3 has a sector with a central angle of 1/9
radians.
What is the area of the sector?
Either enter an exact answer in terms of ar or use 3.14 for ar enter your answer as a decimal.

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

Which of the following circles have their centers in the third quadrant? check all that apply.

Find the missing factor. write your answer inexponential form.9^2=9^4×