Graph the function.f(x) = e-x
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the coordinates of the vertex of the graph of the equation. If necessary, complete the square on x to write the equation in the form y = a(x - h)2 + k. Do not graph the equation.y = -4(x - 3)2
A. (0, -4) B. (5, 0) C. (-4, 0) D. (0, 3) E. (3, 0)
Mathematics
Decide whether or not the given equation is an identity.2 sin2 
- cos ? = 1
A. Yes B. No
Mathematics
Simplify the expression.2434/5
A. 2,187 B. 6,561 C. 19,683 D. 81
Mathematics
Find the amount of the ordinary annuity rounded to the nearest cent.
A. $603,699.89 B. $449,699.87 C. $265,824.88 D. $420,952.27
Mathematics