Provide an appropriate response.Decide whether the expression is positive, negative, or zero. 
A. Positive
B. Negative
C. Zero
Answer: C
Mathematics
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Perform the indicated operation.-12 - (-7)
A. 19 B. 5 C. -5 D. -19
Mathematics
Determine the amplitude or period as requested.Period of y = -5 cos 
x
A. 
B. 
C. 8?
D. -5
Mathematics
Factor f(x) into linear factors given that k is a zero of f(x).f(x) = x4 + 6x3 + 7x2 - 12x - 18; k = -3 (multiplicity 2)
A. f(x) = (x -3) (x + 3) (x - 
)(x + 
)
B. f(x) = (x + 3)2(x - 
)(x + 
)
C. f(x) = (x + 3)2(x - 2)(x + 2)
D. f(x) = (x -3 )2(x - 
)(x + 
)
Mathematics
Solve the problem.A boat is moving away from shore in such a way that at time t hours its distance from shore, in kilometers, is given by the linear function 
What is the rate of change of the distance from shore?
A. 9.1 m/s B. 4.5 km/hr C. 4.5 m/s D. 9.1 km/hr
Mathematics