Determine the absolute value of the complex number.z = -2 - 4i
A. 
B. i
C. 2
D. 2i
Answer: C
Mathematics
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Find the vertices and foci of the ellipse.
+ 
= 1
A. Vertices: (0, ±5); Foci: (0, ±3) B. Vertices: (±4, 0); Foci: ( ±3, 0) C. Vertices: (0, ±5); Foci: (0, ±4) D. Vertices: (±5, 0); Foci: ( ±4, 0)
Mathematics
Find the eccentricity of the hyperbola.64x2 - 49y2 = 3136
A. 
B. 
C. 
D. 
Mathematics
Write the percent problems as equations or proportions and solve. Round to the nearest tenth or tenth of percent. 56 is what percent of 85 ?
A) 64.9% B) 66.9% C) 67.9% D) 63.9% E) 65.9%
Mathematics
Solve. Write a mixed numeral for the answer.The second tallest child in a class is 33
inches tall. The tallest child is 4
inches taller. How tall is the tallest child in the class?
A. 37
in.
B. 38
in.
C. 37
in.
D. 37
in.
Mathematics