Subtract in the indicated base.2315 - 225
A. 1435
B. 2045
C. 1045
D. 2445
Answer: B
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Solve the compound linear inequality graphically. Write your answer in interval notation. 4 < 
< 9 
A. 
B. 
C. 
D. 
? 
Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 801. Find a linear function which fits this data.
A. y = -4.525x + 484.25 B. y = 4.0725x + 488.25 C. y = 4.0725x - 488.25 D. y = 4.525x + 484.25
Find the vertices and foci of the given ellipse.
+ 
= 1
A. Vertices: (0, 25) and (0, -25);
Foci: (0, 5) and (0, -5)
B. Vertices: (81, 0) and (-81, 0);
Foci: (9, 0) and (-9, 0)
C. Vertices: (0, 9) and (0, -9);
Foci: (0, 2
) and (0, -2
)
D. Vertices: (9, 0)and (-9, 0);
Foci:(2
, 0) and (-2
, 0)
Write as a decimal.0.095%
A. 0.000095 B. 0.0095 C. 9.5 D. 0.00095