There are two circles. Circle A has a radius of 22 m. Circle B has a radius of 13 m. What is the difference in circumference between the two circles? Use 3.14 for π. Enter your answers in the boxes. Circle A has a circumference of:
m

Circle B has a circumference of:
m

Their difference is
meters.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!