46.  In Chapter 9, regular care (PM) of molds pays off in the long run.

Given the general triangle, which is not drawn to scale, and  a=10, b=5 and c=6{“version”:”1.1″,”math”:”a=10, b=5 and c=6″} Find the exact measure of angle A.  If A is a special angle, give me the angle in degrees.  Otherwise, leave it in terms of an inverse trigonometric function.

Solve the equation for all possible real number solutions. cosx=sin2x{“version”:”1.1″,”math”:”cosx=sin2x”}

5. Insulated mold plates are recommended if the operating mold temperature is greater than 150f.

19.  The correct vent depths for the following plastics recommended by material supplier     – ABS   .001-.0015″     – PP    .0005-.0012″     – Glass Filled Nylon  .001-.0025″

3.  The picture below is an example of which of the following?  

2.   How many Major OEM (original Equipment Manufacturer) Automotive Makers are within 300 miles of Tuscaloosa, discussed week 1.

  A B C  D E  F G  H    

Bonus 1   Calculate the indexing for 24 degrees 30′. hint: first convert into minutes   N/540=   ____turns   ___ holes _____ plate  

Calculate the following information for cutting a spur gear with 33 teeth and a Diametral pitch of 16.(5 points)a. Outside diameter   ___________b. Pitch diameter  ____________c. Whole depth  ___________d. cutter number  ____e. indexing     ____ full turn(s) and ____ holes on a ____ hole plate.