Last year winner set a school record by completing 37 sit-ups. Amelia wants to know how many weeks she will need to train to beat this record. Part A Why is Amelias goal of breaking the record best described by an inequality

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.