Find the domain of the rational function.r(x) = 
A. All real numbers except 0 and 6.
B. All real numbers except 0.
C. All real numbers except -6 and 6.
D. All real numbers except 0 and-6.
Answer: A
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y, z) = z(ex)y
A. 
= zyexy; 
= zxexy; 
= exy
B. 
= zxexy; 
= zyexy; 
= exy
C. 
= zyexy; 
= zxexy; 
= zexy
D. 
= zexy; 
= zexy; 
= exy
Mathematics
Find the slope of the line containing the two given points.(6, -8) and (7, 5)
A. 
B. 13
C. - 13
D. - 
Mathematics
Find the value of the determinant.
A. -13 B. 13 C. 65 D. -51
Mathematics
Indicate whether the list of terms are like or unlike.2xy2z, -17xy2
A. like B. unlike
Mathematics