Factor the four-term polynomial by grouping.10x6 + 6x3 - 25x3 - 15
A. (2x3 + 5)(5x3 - 3)
B. (10x3 + 5)(x3 - 3)
C. (2x3 - 5)(5x3 + 3)
D. (2x6 - 5)(5x + 3)
Answer: C
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If the given graph is Eulerian, find an Euler circuit in it. If it is not Eulerian, first Eulerize it and then find an Euler circuit. 
A. A, B, C, A, D, E, F, A B. E, B, C, A, F, E, D, A, F, E C. Add edge BE; A, C, B, E, D, A, F, E, B, A D. C, B, A, F, E, D, A, C
Write an equation for the ellipse.foci at (0, 11), (0, -11), through the point 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find the center and radius of the circle whose graph is shown. Write the standard form of the equation of the circle.
A. r = 2; (h, k) = (-4, -2); (x - 4)2 + (y - 2)2 = 4
B. r = 
; (h, k) = (-4, -2); (x + 4)2 + (y + 2)2 = 2
C. r = 
; (h, k) = (-4, -2); (x - 4)2 + (y - 2)2 = 2
D. r = 2; (h, k) = (-4, -2); (x + 4)2 + (y + 2)2 = 4
Solve the problem.It costs $34 per hour plus a flat fee of $17 for a plumber to make a house call. Find the total cost to have a plumber come to a house for 6 hours.
A. $221 B. $584 C. $136 D. $204