Find the eccentricity of the ellipse.Find the eccentricity of an ellipse centered at the origin having a focus of (0, 
) and corresponding directrix y = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Change the given polar coordinates (r, ?) to Cartesian coordinates (x, y).
A. (5
, 5)
B. (10
, 10
)
C. (10, 10)
D. (5
, 5
)
Mathematics
A survey showed that students had these preferences for instructional materials. Use the graph to answer the question.
About how many students would you expect to prefer radio in a school of 500 students?
A. About 180 students B. About 25 students C. About 5 students D. About 90 students
Mathematics
Graph the function defined by a radical expression.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Find percent notation.0.00063
A. 0.0063% B. 0.000063% C. 0.063% D. 0.63%
Mathematics