Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -4x2 - 2x - 5
A. minimum; - 
B. maximum; 
C. maximum; - 
D. minimum; 
Answer: C
Mathematics
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Test the vector field F to determine if it is conservative.F = -csc2 x csc yi - cot x cot y csc yj - cos xk
A. Not conservative B. Conservative
Mathematics
Simplify.
(x - 6) - 6
A. 
x + 7
B. 6x - 7
C. 
x - 5
D. 
x - 7
Mathematics
Solve the problem.A cross-country skier reaches the 13-km mark of a race 40 min after reaching the 
mark. Find the speed (average rate of change) of the skier.
A. 8 km/hr
B. 32 km/hr
C. 
km/hr
D. 12 km/hr
Mathematics
Find the missing length to the nearest tenth.
A. b = 3.3 m B. b = 429 m C. b = 28.7 m D. b = 20.7 m
Mathematics