Solve the problem.The area of a triangle with vertices (x1, y1), (x2, y2), and (x3, y3) is given by Area = ± 
, where the symbol ± indicates that the appropriate sign should be chosen to yield a positive area. Use this formula to find the area of a triangle whose vertices are (9, 5), (7, -6), and (-8, -3).
A. 
square units
B. 
square units
C. 5 square units
D. 171 square units
Answer: A
Mathematics
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Solve the problem.Find the center of mass of the hemisphere of constant density bounded 
and the 
A. 
= 0, 
= 0, 
= 4
B. 
= 0, 
= 0, 
= 2
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Mathematics
Multiply.(a - 6)(a - 5)
A. 2a2 - 30 B. 2a + 30 C. a2 - 11a + 30 D. a2 + 11a - 30
Mathematics
Find the integral. 
Mathematics
Find the quotient and simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics