A triangle with vertices at (x1, y1), (x2, y2), and (x3, y3) has area equal to the absolute value of D, where . Use this information to solve the problem.Use D to find the area of the triangle shown.

A. 9.5
B. 11.0
C. 10.0
D. 10.5


Answer: B

Mathematics

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A. 34,541 B. 340,541 C. 304,541 D. 345,041

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Perform the indicated matrix operations.Let A =  and B = . Find 2A + 2B.

A.
B.  
C.
D.

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Find the length of the unknown side of a right triangle with legs a and b and hypotenuse c. Round to the nearest thousandth, if necessary.a = 6, b = 8

A. c = 5 B. c = 9 C. c = 7 D. c = 10

Mathematics