Answer the question.If the graphs of a system of two equations are a circle and a parabola, what are the possible numbers of solutions (with real coordinates) of this system?
Fill in the blank(s) with the appropriate word(s).
0, 1, 2, 3, or 4
Mathematics
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Solve the formula for the stated variable.A = lw; solve for l
A. l = Aw
B. l = 
C. l = 
D. l = A - w
Mathematics
Solve the problem.A formula for calculating the distance, d, one can see from an airplane to the horizon on a clear day is 
where x is the altitude of the plane in feet and d is given in miles. How far can one see in a plane flying at 27,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 16,470 mi B. 1647 mi C. 181.5 mi D. 200.5 mi
Mathematics
Use DeMoivre's Theorem to find the indicated power. Write the answer in rectangular form.
4
A. - 
+ 
i
B. - 
- 
i
C. - 
+ 
i
D. - 
- 
i
Mathematics
Graph the function.Use the graph of f(x) = ex to obtain the graph of g(x) = e-x.
A. 
B. 
C. 
D. 
Mathematics