Solve the problem.A weather forecaster predicts that the temperature will drop 3 degrees each hour for the next 8 hours. If the temperature is 4 degrees before the temperature starts falling, what is the temperature after the drop?

A. 24°
B. -7°
C. -20°
D. -24°


Answer: C

Mathematics

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Solve the problem.Select the correct statement for the definition of the limit: f(x) = L means that __________________

A. if given any number ? > 0, there exists a number ? > 0, such that for all x, 
0 <  < ? implies  < ?.
B. if given a number ? > 0, there exists a number ? > 0, such that for all x, 
0 <  < ? implies  > ?.
C. if given any number ? > 0, there exists a number ? > 0, such that for all x, 
0 <  < ? implies  > ?.
D. if given any number ? > 0, there exists a number ? > 0, such that for all x, 
0 <  < ? implies  < ?.

Mathematics

Evaluate the limit if one exists.

A.
B.
C.
D. Does not exist

Mathematics

Find the exact value by using a half-angle identity.cos 

A.  
B.  
C. -  
D. -  

Mathematics

Solve for the unknown in the equation.182 = 13S + 13

A. S = 1 B. S = 13 C. S = 156 D. S = 160

Mathematics