Solve the equation.36n2 + 20n = 0
A. 
B. 
C. {0}
D. 
Answer: A
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Describe the curve represented by the equation. Identify the type of curve and its center (or vertex if it is a parabola).
- 
= 1
A. Hyperbola, (1, 5) B. Ellipse, (1, 5) C. Hyperbola, (5, 1) D. Parabola, (5, 1)
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
A = 11° 14', c = 247 ftRound side lengths to two decimal places.
A. B = 79° 45'; a = 48.12 ft; b = 238.27 ft B. B = 78° 46'; a = 48.12 ft; b = 242.27 ft C. B = 78° 45'; a = 51.32 ft; b = 243.47 ft D. B = 78° 46'; a = 47.55 ft ; b = 241.38 ft
Find an equation of the parabola described.Directrix the line y = 3; vertex at (0, 0)
A. x = - 
y2
B. x = 3y2
C. y = - 
x2
D. y = -12x2
Solve the problem.The table shows the number of new AIDS cases (in thousands) in the U.S. in five consecutive years.
Let x = 1 correspond to 1988 and let f(x) be the number of new AIDS cases (in thousands) in the U.S. in year x. Using the points 
and 
the following linear function is obtained to model the data: 
Compare the number of new AIDS
cases given by the model in 1990 with the actual number of new AIDS cases that year. How accurate is the model? What will be an ideal response?