The graph of an exponential function is given. Select the function for the graph from the functions listed.
A. f(x) = - 3-x
B. f(x) = 3-x
C. f(x) = 3x
D. f(x) = - 3x
Answer: B
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Solve the problem.A square with sides of length 8 is inscribed in a circle and circumscribed about another circle. What is the area of the larger circle?
A. 4? B. 32 C. 32? D. 16?
Solve the system of equations by the substitution method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent. x - 2y = -1-3x - 1y = 3
A. (-1, 0) B. No solution; inconsistent C. (0, -1) D. (1, -1)
For the initial value problem, compute the first two approximations u1 and u2 given by Euler's method using the given time step.y'(t) = -y, y(0) = -4; ?t = 0.3
A. u1 = -2.8; u2 = -1.96 B. u1 = -1; u2 = -2.59 C. u1 = -2.8; u2 = -2.8 D. u1 = -4; u2 = -2.8
Find the derivative of y with respect to the appropriate variable.y = 5 ln x + 
sech-1 x
A. 5 ln x - sech-1 x
B. 
- 
C. 
- 
D. 
- 