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. 31.25
B. 30.0
C. 31.5
D. 29.75
Answer: B
Mathematics
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Evaluate the integral.
A. - 
cos 14x - 
cos 2x + C
B. - 
cos 14x - 
sin 14 x + C
C. 
sin 2x + 
sin 14x+ C
D. 
sin 2x - 
sin 14x+ C
Mathematics
Find the equation of the line passing through the indicated two points. Write the equation in slope-intercept form.(8, 7) and (-8, 7)
A. y = 4x - 37 B. y = 7 C. y = 12x - 101 D. y = 3x - 29
Mathematics
Find the domain of the composite function f?g. Write the domain in interval notation.f(x) = 2x + 4; g(x) = 
A. [-2, ?) B. [0, ?) C. (-?, ?) D. (-?, -2] ? [0, ?)
Mathematics
Solve the inequality. Write the solution in interval notation.
? 0
A. (-?, -12] ? (1, 5] B. [-12, 1) ? (1, 5] C. [-12, 1) ? [5, ?) D. (-?, -12] ? [5, ?)
Mathematics