Solve the quadratic equation.x(x - 1) = 20
A. {-4, 5}
B. {4, 5}
C. {-5, -4}
D. {1, 20}
Answer: A
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Solve the problem.S(x) = -x3 + 6x2 + 288x + 4000, 4 ? x ? 20 is an approximation of the number of salmon swimming upstream to spawn, where x represents the water temperature in degrees Celsius. Find the temperature that produces the maximum number of salmon.
A. 20°C B. 12°C C. 4°C D. 8°C
Solve the equation.
- 5 = 
A. {-2}
B. {2}
C. 
D. ?
Two sides and an angle (SSA) of a triangle are given. Determine whether the given measurements produce one triangle, two triangles, or no triangle at all. Solve each triangle that results. Round lengths to the nearest tenth and angle measures to the nearest degree.B = 41°, a = 4, b = 3
A. no triangle B. A1 = 61°, C1 = 78°, c1 = 4.5; A2 = 119°, C2 = 20°, c2 = 1.6 C. A = 29°, C = 110°, c = 5.7 D. A1 = 61°, C1 = 78°, c1 = 0.1; A2 = 119°, C2 = 20°, c2 = 0.1
Find the function value 
.
A. 13 B. 9 C. 10 D. 12 E. 11