Solve the problem.The amount A (in g) remaining of a radioactive substance after time t (in years) is found by solving the equation 
If there are 350 grams of the substance initially, solve for A as a function of t.
A. A = 350e0.029t
B. A = e-0.029t + 350
C. A = 350 ln 0.029t
D. A = 350e-0.029t
Answer: D
Mathematics
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Solve the problem.Suppose that the x-intercepts of the graph of y = f(x) are 4 and 5. What are the x-intercepts of 
A. -3 and -2 B. 4 and 5 C. 20 and 35 D. 11 and 12
Mathematics
Perform the indicated operation
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Complete the identity.
= ?
A. tan x B. cos2 x C. cot x D. sin2 x
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Graph the function.y = -4 tan 
A. 
B. 
C. 
D. 
Mathematics