Perform the indicated operations.(4x - 5y)2
A. 4x2 + 25y2
B. 16x2 - 40xy + 25y2
C. 4x2 - 40xy + 25y2
D. 16x2 + 25y2
Answer: B
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Solve the problem.The percent increase for in-state tuition at a certain public university during the years 1991 through 1999 can be modeled by the quadratic function defined by f(x) = 0.151x2 - 2.05x + 10.9, where x = 1 represents 1991, x = 2 represents 1992, and so on.(i) Based on this model, by what percent (to the nearest tenth) did tuition increase in 1991?(ii) In what year was the minimum tuition increase? (Round down to the nearest year.) To the nearest tenth, by what percent did tuition increase that year?
A. (i) 7.4%; (ii) 1995; 4.4% B. (i) 18.4%; (ii) 1998; 37% C. (i) 10.9%; (ii) 1996; 4% D. (i) 9%; (ii) 1997; 3.9%
Match the equation to the graph.(y - 2)2 = -7(x - 1)
A. 
B. 
C. 
D. 
Use the formula for the nth term of a geometric sequence to find the indicated term of the sequence with the given first term, a, and common ratio, r.Find a8 when a = 4,000,000, r = 0.1.
A. 4 B. 0.004 C. 0.4 D. 0.04
Solve.A planet's orbit about the Sun can be described as an ellipse. Consider the Sun as the origin of a rectangular coordinate system. Suppose that the x-intercepts of the elliptical path of the planet are 
and that the y-intercepts are 
Write the equation of the elliptical path of the planet.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1