Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 12.9 ft2
B. 13.1 ft2
C. 12.5 ft2
D. 12.3 ft2
E. 11.9 ft2
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Perform the indicated operations.(8x3 + 2x2) - (7x2 - 5x -1) - (6x3 + x - 5)
A. 14x3 - 9x2 + 4x - 6 B. 2x3 - 3x2 - 4x + 6 C. 2x3 - 5x2 + 4x + 6 D. 2x3 + 5x2 + 6x - 6
Mathematics
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A. [-6, -2)
B. (-6, -2]
C. [-6, -2]
D. (-6, -2)
Mathematics
Find the determinant of the given matrix.
A. 2ab B. a2 - b2 C. a2 + b2 D. 0
Mathematics