Find the center of the ellipse.16x2 + y2 - 64x + 48 = 0
A. (-2, -4)
B. (-2, 0)
C. (2, 0)
D. (4, 0)
Answer: C
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The following expressions represent denominators of rational expressions. Find their LCD.2(a + 7) and 7(a + 7)
A. 14(a + 7)2 B. 14(a + 7) C. 9(a + 7)2 D. 9(a + 7)
Given the floor plan, determine whether a person could traverse through each unit by passing through each door only once.
A. Yes B. No
Provide an appropriate response.According to data collected during one year in a large metropolitan community, 30% of commuters used public transportation to get to work, and this rose by 4% the following year. This is modeled by the transition matrix 
M = 
where P represents the percentage of people that use public transportation and P' the percentage of people that do not. Let S0 = [0.3 0.7]. Find S1.
A. [0.3 0.7] B. [0.66 0.34] C. [0.9 0.1] D. [0.34 0.66]
Find the base. Round to the nearest hundredth unless otherwise indicated.1
% of what number of caps is 91 caps? Round to the nearest whole number.
A. 60,670 B. 607 C. 1 D. 6067