A straight road makes an angle, A, of 10° with the horizontal. When the angle of elevation, B, of the sun is 56°, a vertical pole beside the road casts a shadow 8 feet long parallel to the road, see figure. Approximate the length of the pole. Round answer to two decimal places.
A. 2.48 feet
B. 10.29 feet
C. 6.22 feet
D. 11.86 feet
E. 6.94 feet
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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The following table shows some function values.
1.95.17.28.4
21.66156.06311.04423.36?
Which formula below fits these data?
?
A. 
B. ?
C. ?
D. ?
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Evaluate 
for the given x and function f.f(x) = 2x2 + 5 for x = 4
A. 21 B. 32 C. 16 D. Does not exist
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Solve the equation for exact solutions.arctan x = arccot 
A. ?
B. 
C. 
D. {0}
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