Find all the values of x (if any) where the tangent line to the graph of the given equation is horizontal. Round your answer to two decimal places.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve the differential equation.y'' - 6y' + 8y = 0
A. y = e4x(C1 cos 2x + C2 sin 2x) B. y = e2x(C1 cos 4x + C2 sin 4x) C. y = C1e-2x + C2e-4x D. y = C1e2x + C2e4x
Mathematics
Find the mean. Round to the nearest tenth unless otherwise stated.Annual salaries: $21,096, $18,265, $30,962, $24,944Round to the nearest whole number.
A. $23,816 B. $23,817 C. $18,265 D. $21,096
Mathematics
Find the reciprocal of the number.
A. 7
B. 
C. 
D. 
Mathematics
Write the sum in summation notation.
+ 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. 
Mathematics