Find all points (x, y) where f(x, y) = x2 + y3 - 6y2 + 6x - 15y has a possible relative maximum or minimum.Enter your answer exactly as just (a, b), (c, d) with 
and where a, b, c, d are all integers.
Fill in the blank(s) with the appropriate word(s).
(-3, -1), (-3, 5)
Mathematics
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Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?15 ft
A. 4.6 ft B. 4 ft C. 3.7 ft D. 4.4 ft
Mathematics
Find the area of the rectangle.
6 mi
A. 24 sq mi B. 32 sq mi C. 39 sq mi D. 36 sq mi
Mathematics
Without graphing, find the maximum value or minimum value.f(x) = (x + 6)2 - 2
A. 5 B. -2 C. 7 D. 6
Mathematics
Evaluate the integral.
Mathematics