Solve the problem.A local civic theater has 22 seats in the first row and 21 rows in all. Each successive row contains 3 additional seats. How many seats are in the civic theater?
A. 1070 seats
B. 1092 seats
C. 1010 seats
D. 790 seats
Answer: B
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Factor the trinomial completely.12m2n2 - 47mn + 40
A. (4mn - 5)(3mn - 8) B. (4m2 - 5)(3n2 - 8) C. (4mn - 5)(3mn + 8) D. (4mn + 5)(3mn + 8)
Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.
A. {1, 2, 3, 4, 5, 6, 7, 8, 9} B. {1, 2, 3, 4, 5, 7, 8, 9} C. {0, 2, 3, 4, 5, 6, 7, 8, 9} D. {1}
Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (-1, 3)
foci at (-1 + 
, 3), (-1 - 
, 3)
vertices at (-3, -1), (9, -1)
B. center at (3, -1)
foci at (3 + 
, -1), (3 - 
, -1)
vertices at (-3, -1), (9, -1)
C. center at (3, -1)
foci at (- 
, -1), (
, -1)
vertices at (6, -1), (-6, -1)
D. center at (3, -1)
foci at (3 + 
, 3), (3 - 
, 3)
vertices at (6, -1), (-6, -1)
Use elimination by substitution to find the solution for the following system.
A. x = -1, y = 6 and x = 7, y = 13 B. x = -1, y = 4 and x = 7, y = 14 C. x = -1, y = 6 and x = 7, y = 14 D. x = -1, y = 6