Find the area of the triangle. If necessary, round the answer to two decimal places. 
A. 16.91
B. 6.16
C. 12.31
D. 24.63
Answer: B
Mathematics
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Solve the problem.Find a parametrization for the ellipsoid 
+ 
+ 
= 1. (Recall that the parametrization of an ellipse 
+ 
= 1 is x = 7 cos ?, y = 8 sin ?, 0 ? ? < 2?).
What will be an ideal response?
Mathematics
Add and write the result in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the indicted product and simplify if possible.The expression 9x2 - 18(x - 3)2 - (x - 6)3 was used to determine the stress in a section of metal.
A. -x3 - 21x2 + 180x - 378 B. -x3 - 9x2 + 378 C. -x3 - 303x2 + 36x + 207 D. -x3 + 9x2 + 54
Mathematics
Use an identity to write the expression as a single trigonometric function or as a single number.
A. 
B. 
C. 
D. 
Mathematics