Change the logarithmic expression to an equivalent expression involving an exponent.ln  = -5

A. -5e =  
B. -5 = e
C. e = -5
D. e-5 = 


Answer: D

Mathematics

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Solve the problem.A 20-kg mass is attached to a spring that hangs vertically and is stretched 3 m from the equilibrium position of the spring. Assume a linear spring with F(x) = kx. How much work is required to stretch the spring and lower the mass 1 m? Round to four decimal places when appropriate.

A. 16.3333 J B. 424.6667 J C. 228.6667 J D. 212.3333 J

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Round to the indicated place value.Round to the nearest ten: 86.1

A. 89 B. 91 C. 90

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Use implicit differentiation to find the specified derivative at the given point.Find  at the point (1, 0) for cos xy + yex = 0.

A.
B. e
C. 1
D. 0

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Identify the equation as either an identity or not.cos x csc x tan x = 1

A. Identity B. Not an identity

Mathematics