Which problem would best be solved using 22/7 as an approximation of π? a. find the perimeter of a rectangle with side lengths of 3 ft and 4 ft. b. find the area of a circle with a radius of 33.1 in. c. find the circumference of a circle with a diameter of 14 ft. d. find the circumference of a circle with a radius of 12 m.

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x