Provide an appropriate response. Add: 15 + (-12)
A. -27
B. 27
C. -3
D. 3
Answer: D
Mathematics
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Solve the problem.Suppose that z varies jointly with x and y and that z = 343 when x = 7 and 
Find the constant of proportionality k. Then, find z when x = 7 and y = 8.
A. k = 2.9; z = 162.4
B. k = 33,614; z = 
C. k = 3.9; z = 218.4
D. k = 3.5; z = 196
Mathematics
Use implicit differentiation to find dy/dx.xy + x = 2
A. - 
B. - 
C. 
D. 
Mathematics
Simplify the expression using the order of operations.17 - (-7)2
A. 31 B. 32 C. 66 D. -32
Mathematics
Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
Mathematics