Solve.The average summer temperature in the Antarctica was -25°F and the average winter temperature was 
How much higher was the summer average temperature?
A. 31°F
B. -81°F
C. -31°F
D. 81°F
Answer: A
Mathematics
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Evaluate the integral.
A. 
? cos 3
B. 
? cos 3
C. 
?2 cos 3
D. 
?2 cos 3
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?Graph the piecewise-defined function 
if
, and
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.
?
What will be an ideal response?
Mathematics
Give an appropriate answer to the question.Decide if the following statement is true or false (if false, give an example to show that it is false): A complete graph with three or more vertices cannot be a tree.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Evaluate the sum.
A. 14 B. -10 C. -34 D. 62
Mathematics