Use the given information to find the exact value of the expression.tan ? = 
, ? lies in quadrant III
Find sin 2?.
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Find the solution to the system of equations by the substitution method.
A. (5, 7) B. (4, 8) C. (-4, 7) D. (8, 4)
Mathematics
Write the augmented matrix for the system. 5x - 2y + 6z = 82 7x + 8y - 2z = 32 4x + 7y + 2z = 49
A. 
B. 
C. 
D. 
Mathematics
True or false?
?
If 
and 
, then
.
What will be an ideal response?
Mathematics
Give an appropriate answer.If f(x, y, z) = 
3/2 find fz(x, y, z).
A. 
B. 
C. 
D. 
Mathematics