Solve the system of equations using elimination. 
A. 
B. 
C. infinitely many solutions
D. no solution
Answer: B
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Solve the problem.The parabola y2 = -28x is shifted 7 units down and 4 units to the right. Find the focus and directrix of the new parabola.
A. Focus: (-7, -3); Directrix: y = 11 B. Focus: (11, -7); Directrix: x = 11 C. Focus: (-3, -7); Directrix: x = -3 D. Focus: (-3, -7); Directrix: x = 11
Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when x = 0 and x = 4.
A. 8600, 172,000 B. 8600, 26,875,000 C. 43,000, 5,375,000 D. 8600, 5,375,000
Solve the problem.Find the average height of the paraboloid 
above the annular region 
in the 
.
A. 725
B. 700
C. 475
D. 
Insert either < or > to make a true statement.- 
- 1
A. > B. <