Solve.The angle of reflection ? of a ray from air to a medium of index n is given by Snell's Law to be sin ? = 1/n. Find ? if n = 10/9.
A. 1.6°
B. 25.8°
C. 115.8°
D. 64.2°
Answer: D
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Provide an appropriate response.If Rt = 
, where R1 = 3,300 and R2 = 4,700, then Rt =
A. 8,000 B. 3,300 C. 1,939 D. 969
Solve the problem. Round dollars to the nearest cent and rates to the nearest tenth of a percent.Find the amount of markup of an item which cost a store $215. The store has a 25% markup.
A. $53.75 B. $268.75 C. $172.00 D. $860.01
Using transformations, sketch the graph of the requested function.The graph of a function f is illustrated. Use the graph of f as the first step toward graphing the function F(x), where 
A. 
B. 
C. 
D. 
Sketch the graph of the quadratic function. Identify the vertex, intercepts, and the equation for the axis of symmetry.f(x) = 3 - x2 + 2x 
A. vertex: (1, 4)
x-intercepts: (-3, 0) and (1, 0)
y-intercept: (0, 3)
axis of symmetry: x = 1
B. vertex: (1, 4)
x-intercepts: (-1, 0) and (3, 0)
y-intercept: (0, 3)
axis of symmetry: x = 1
C. vertex: (- 1, 4)
x-intercepts: (-3, 0) and (1, 0)
y-intercept: (0, 3)
axis of symmetry: x = - 1
D. vertex: (1, - 4)
x-intercepts: (-1, 0) and (3, 0)
y-intercept: (0, 3)
axis of symmetry: x = 1