Find the length of the polar curve.
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In ?PQR and ?STU, PQ = ST, PR = SU, and m
m What will be an ideal response?
Solve the problem.On a Touch Tone phone, each button produces a unique sound. The sound produced is the sum of two tones and is given by 
and y = sin (2?ht), where l and h are the low and high frequencies (in hertz = Hz) associated with that button. 
The tone produced is thus given by y = sin (2?lt) + sin (2?ht). Write an expression that models the tone by pressing the "3" button as a product of sines and cosines.
A. y = 2 sin (1906?t) cos (512?t) B. y = 2 sin (512?t) cos (1906?t) C. y = 2 sin (2174?t) cos (780?t) D. y = 2 sin (780?t) cos (2174?t)
Solve the problem.To get a B in biology, Katie must average 82 on five lab reports. Scores on the first four lab reports were 93, 78, 79, and 80. What is the lowest score that Katie can get on the last lab report and still receive a B?
A. 76 B. 80 C. 83 D. 82
Solve the problem.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long will it take the object to move 11 meters? Round to the nearest tenth.
A. 12.0 sec B. 3.2 sec C. 20.9 sec D. 3.0 sec