Simplify the expression.7x + 3 + 4x + x + 9
A. 10x + 12
B. 11x + 12
C. 11x - 12
D. 12x + 12
Answer: D
Mathematics
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Find the indicated cardinal number.Find n(E), given that n(C × E) = 18 and C = {4, 5, 6}.
A. 3 B. 6 C. 54 D. 9
Mathematics
Use lattice multiplication to determine the product.9 × 215
A. 2150 B. 1944 C. 1926 D. 1935
Mathematics
Identify the vertex and axis of symmetry of the parabola.x = -y2 - 4y - 2
A. Vertex (6, 2); Axis of symmetry y = 2 B. Vertex (6, -2); Axis of symmetry y = -2 C. Vertex: (2, -2); Axis of symmetry y = -2 D. Vertex (- 6, 2); Axis of symmetry y = 2
Mathematics
Express as a sum, difference, and product of logarithms, without using exponents.logb 
A. 
logb x2 - logb y7 - logb z9
B. 2logb x - 7logb y - 9logb z
C. 
logb x - 
logb y - 3logb z
D. 
logb x - 
logb y + 3logb z
Mathematics