Find the extreme values of the function and where they occur.y = 
A. Local maximum at (0, -1).
B. Local maximum at (-1, 0), local minimum at (1,0).
C. Local maximum at (1, 0), local minimum at (-1, 0).
D. None
Answer: A
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Evaluate the expression for the given values of the variables, if possible.n ? (m - 20)2, for m = 11, n = 7
A. 81 B. 567 C. -63 D. -567
What is the sum of the measures of the interior angles of any quadrilateral? ? The sum is equal to __________°.
Fill in the blank(s) with the appropriate word(s).
Find the value of the indicated sum.
A. 
+ 
= 
B. 
? 
? 
= 165
C. 
+ 
+ 
= 
D. 
+ 
+ 
= 30
Solve.A flagpole casts a shadow of 23 ft. Nearby, a 9-ft tree casts a shadow of 7 ft. What is the height of the flag pole? Round to the nearest tenth of a foot, if necessary.
A. 1449 ft B. 2.7 ft C. 17.9 ft D. 29.6 ft