Use the table of record trout lengths at Yosemite Lake to answer the question. To find the average, add up the values you are interested in and then divide the sum by the number of values. Round your answer to the nearest tenth.
Find the average length of record trout caught on a holiday weekend (Saturday, Sunday, Monday).
A. 13.3 in.
B. 12.8 in.
C. 12.1 in.
D. 9.6 in.
Answer: B
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Solve the given differential equation. (The form of yp is given.)D2y + 9y = sin x - 2 (Let yp = A + B sin x + C cos x.)
A. y = c1 sin 3x + c2 cos 3x + 
+ 
sin x
B. y = c1 sin 3x + c2 cos 3x - 
+ 
sin x
C. y = c1 sin 3x + c2 cos 3x - 
- 
sin x
D. y = c1 sin 3x + c2 cos 3x - 
+ 
sin x + 
cos x
Solve the system.-0.5x + 0.7y = -0.5-0.6x - 0.1y = 4.1
A. {(-5, -6)} B. {(-6, -5)} C. {(-0.6, -0.5)} D. {(-60, -50)}
Find the sum of the infinite geometric sequence.
A. S = 24 B. S = 48 C. S = 36 D. S = 32
Test the equation for symmetry with respect to the given axis, line, or pole.r = 2 sin(3?); the line ? = 
A. May or may not be symmetric with respect to the line ? = 
B. Symmetric with respect to the line ? = 