Find the product.(n + 7)2
A. 49n2 + 14n + 49
B. n + 49
C. n2 + 14n + 49
D. n2 + 49
Answer: C
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Use grouping to factor the polynomial.18x3 + 15x2 + 6x + 5
A. (3x2 + 1)(6x - 5) B. (3x + 1)(6x + 5) C. (3x2 + 1)(6x + 5) D. (3x2 - 1)(6x + 5)
Find the center, foci, and vertices of the ellipse.64x2 + 25y2 = 1600
A. center at (0, 0)
foci at (0, - 
) and (0, 
)
vertices at (0, -8), (0, 8)
B. center at (0, 0)
foci at (- 
, 0) and (
, 0)
vertices at (-8, 0), (8, 0)
C. center at (0, 0)
foci at (0, 8) and (5, 0)
vertices at (0, 64) and (25, 0)
D. center at (0, 0)
foci at (0, -8) and (0, 8)
vertices at (0, -64), (0, 64)
Find the domain and the vertical asymptote of the function.f(x) = ln x - 3
A. Domain: (-?, ?); vertical asymptote: none B. Domain: (0, ?); vertical asymptote: x = 0 C. Domain: (- 3, ?); vertical asymptote: x = - 3 D. Domain: [0, ?); vertical asymptote: x = 0
Find the production matrix for the input-output and demand matrices.A = 
, D = 
A. 
B. 
C. 
D. 