Find the area of the triangle. If necessary, round the answer to two decimal places.a = 6, b = 6, c = 7
A. 21.14
B. 18.25
C. 15.54
D. 17.06
Answer: D
Mathematics
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Solve the equations.x2 - 81 = 0
A. 43 B. ±9 C. ±8 D. 9
Mathematics
Find the domain of the rational function.g(x) = 
A. {x|x ? 6, x ? 7} B. all real numbers C. {x|x ? -6, x ? -7, x ? -2} D. {x|x ? -6, x ? -7}
Mathematics
Find an equation for the graph.
A. y = 5 cos 
B. y = 3 cos (2x)
C. y = 2 cos (3x)
D. y = 3 cos 
Mathematics
Find an equation for the hyperbola described.Vertices at (0, ±8); asymptotes at y = ± 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics