User row operations to change the matrix to reduced form.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse centered at the origin having focus (0, -2
) and directrix y = - 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find the area of the shaded region.
A. 
B. 
C. 
D. 
Mathematics
Find the base. Round to the nearest hundredth unless otherwise indicated.15 is 5% of what number?
A. 30 B. 75 C. 3000 D. 300
Mathematics
Find the sum of the sequence.
A. 8 B. 6 C. 14 D. 20
Mathematics