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. 14.0
B. 13.5
C. 14.5
D. 13.0
Answer: A
Mathematics
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Which of the following can be assumed to be true? ?
A.
?If 
, then b> c.
B.
?If , then b< c.
C.
?If 
, then 
.
D.
?The mean of 
is 
.
E.
?None of the above are true.
Mathematics
Use Newton's method to approximate all the intersection points of the pair of curves. Some preliminary graphing or analysis may help in choosing good initial approximations. Round to six decimal places.y = cos x and y = 5x
A. x ? 0.085064 B. x ? 0.196164 C. x ? 0.197264 D. x ? 0.696164
Mathematics
Solve the inequality and graph the solution on the real number line.
?
?
A. 
B.
C.
?
D.
?
E.
?
Mathematics
Convert the equation to Cartesian coordinates.r = -9 csc ?
A. x = -9 B. -9y = 1 C. -9x = 1 D. y = -9
Mathematics