Solve the problem.The formula C = 1.5x + 18 represents the estimated future cost of yearly attendance at State University, where C is the cost in thousands of dollars x years after 2002. Use a compound inequality to determine when the attendance costs will range from 30 to 36 thousand dollars.
A. From 2011 to 2015
B. From 2009 to 2013
C. From 2011 to 2013
D. From 2010 to 2014
Answer: D
Mathematics
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point 
for ex2cos yz = 0.
A. 2
B. - 2
C. - 
D. 
Mathematics
Graph the linear inequality.y < x + 3
A. 
B. 
C. 
D. 
Mathematics
Divide, if possible.39 ÷ (-3)
A. -13 B. 23 C. -23 D. 13
Mathematics
Prove the statement below directly from the definitions of the terms. Do not use any other facts previously proved in class or in the text or in the exercises.
For all integers n, n^2 + n + 1 is odd.
Mathematics