Solve the equation for exact solutions.arctan x = arccot 
A. ?
B. 
C. 
D. {0}
Answer: B
Mathematics
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Convert the units.45 mL = 
L
A. 4500 L B. 0.045 L C. 45,000 L D. 0.45 L
Mathematics
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A stone is thrown into a pond. A circular ripple is spreading over the pond in such a way that the radius is increasing at the rate of 4.3 feet per second. Find a function, r(t), for the radius in terms of t. Find a function, A(r), for the area of the ripple in terms of r. 
A. (A ? r)(t) = 18.49?2t B. (A ? r)(t) = 18.49?t2 C. (A ? r)(t) = 8.6?t2 D. (A ? r)(t) = 4.3?t2
Mathematics
The graph of an exponential function is given. Match the graph to one of the following functions.
A. y = 2.4x B. y = 0.65x C. y = 3.5x D. y = 0.32x
Mathematics