Multiply or divide as indicated. ? 

A. -12i
B. 12i
C. 12
D. -12


Answer: D

Mathematics

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Simplify.

A.  
B.  
C.
D.  

Mathematics

Solve the problem.The area of a triangle with vertices (x1, y1), (x2, y2), and (x3, y3) is ,where the symbol ± indicates that the appropriate sign should be chosen to yield a positive area. Use this formula to find the area of a triangle whose vertices are (10, 3), (7, -9), and (-5, -2).

A.
B.
C. 165
D. 33

Mathematics

Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.3, 5, 8,12, ...

A. Arithmetic; d = 3 B. Geometric; r = 3 C. Geometric; r = 9 D. Neither

Mathematics

Write fractions to represent the shaded and unshaded portions of the figure.

A.
B.
C.
D.

Mathematics