Find the domain of the function.f(x) = log7(36 - x2)
A. (-?, -6) ? (6, ?)
B. (-36, 36)
C. (-6, 6)
D. [-6, 6]
Answer: C
Mathematics
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Solve.The circumference of a water heater is 56.52 in. What is the diameter of the water heater?
A. 8.49 in. B. 9 in. C. 18 in. D. 36 in.
Mathematics
Find the minimum-cost spanning tree for the graph.
A. 
B. 
C. 
D. 
Mathematics
Use Cramer's rule to solve the linear system.7x - 2y + 4z = 214x + 9y - 6z = 242x - 3y - 4z = -4
A. (3, 2, 1) B. (3, -2, -1) C. (2, 1, 2) D. (4, 0, 1)
Mathematics
Find the standard form of the equation of the following conic section.center (-4, 5); r = 2
A. (x + 5)2 + (y - 4)2 = 2 B. (x - 5)2 + (y + 4)2 = 2 C. (x + 4)2 + (y - 5)2 = 4 D. (x - 4)2 + (y + 5)2 = 4
Mathematics