Compute.3 yr 7 mo + 1 yr 11 mo
A. 4 yr 18 mo
B. 5 yr 5 mo
C. 4 yr 6 mo
D. 5yr 6 mo
Answer: D
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Solve the system by graphing.
A. ? B. (5, 2) C. (2, 5) D. (3, 14)
Find the vertex, focus, and directrix of the parabola with the given equation.(y + 4)2 = 12(x + 1)
A. vertex: (-1, -4) focus: (-4, -4) directrix: x = 2 B. vertex: (-4, -1) focus: (-1, -1) directrix: x = -7 C. vertex: (1, 4) focus: (4, 4) directrix: x = -2 D. vertex: (-1, -4) focus: (2, -4) directrix: x = -4
Use scientific notation to solve the problem.Assume that the volume of the earth is 5 × 1014 cubic meters and the volume of a bacterium is 
cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 2.0 × 1030 bacteria B. 5.0 × 10-31 bacteria C. 5.0 × 1031 bacteria D. 2.0 × 10-30 bacteria
Perform the indicated operation. Assume that all variables are nonnegative.-
- (-3
)
A. -4
B. 4
C. 2
D. 2