Pharmaceutical companies must be 99.9% confident in the effectiveness of a new medicine. What alpha level would match this level of confidence if pharmaceutical companies are only interested in “greater than” as an alternative hypotheses?
A) 0.1%
B) 1%
C) 0.05%
D) 0.01%
E) 5%

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.