Classify the number as rational or irrational.- 
A. Rational
B. Irrational
Answer: B
Mathematics
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Find the partial derivative of the dependent variable or function with respect to each of the independent variables.z = 
A. 
= - 
; 
= - 
B. 
= - 
; 
= - 
C. 
= - 
; 
= - 
D. 
= 
; 
= 
Mathematics
Provide an appropriate response. Raise the term to the indicated power: (-3xy4)2
A. 9xy6 B. 9x2y8 C. -9x2y8 D. 9xy8
Mathematics
Evaluate the expression for x = -2, y = 3, z = -4.
A. 4 B. -4 C. 2 D. -2
Mathematics
Solve the equation.2.8 = -10t + 7.2
A. t = 7.44 B. t = 0.44 C. t = –0.56 D. t = 1.44 E. none of these
Mathematics