Use a calculator to verify the value found by using the double-angle formulas.Find cos 150° directly and by using functions of 75°.
A. 0.2588
B. 0.5176
C. 0.6993
D. -0.866
Answer: D
Mathematics
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Factor out the trinomial.
?
?
A. 
B. 
C. 
D. 
E. 
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Sketch the indicated graph.As an airplane passes near a radio tower, the strength of the signal it receives is described by the equation 
, 0.
Sketch the graph.
A. 
B. 
C. 
D. 
Mathematics
Determine whether the sequence of vertices is i) a walk, ii) a path, iii) a circuit in the given graph.
B ? F ? G ? C ? F ? B
A. Walk, path, and circuit B. Walk only C. Walk and path D. None of these
Mathematics
Provide an appropriate response.Find the arc length, s, if ? = 1.3 rad and r = 7 mm.
Fill in the blank(s) with the appropriate word(s).
Mathematics