Scores for a civil service exam are normally distributed, with a standard deviation of 8. To be eligible for civil service employment, you must score in the top 10%. If the lowest score you can earn and still be eligible for employment is a 90, what is the mean score for the exam?

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

What is the length of the unknown leg in the right triangle ?

An appliance store sells lamps at $95.00 for two. a department store sells similar lamps at 5 for $250.00. which store sells at a better rate