Solve the system.
A. (0, -3, 0)
B. (0, -3, 3)
C. (0, 0, -3)
D. ?
Answer: A
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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 "5" button as a product of sines and cosines.
A. y = 2 sin (2247?t) cos (707?t) B. y = 2 sin (707?t) cos (2247?t) C. y = 2 sin (566?t) cos (2106?t) D. y = 2 sin (2106?t) cos (566?t)
Provide an appropriate response.If a ? 0, 
is called the reciprocal of a. Use this definition to express the reciprocal of 
in the form 
Fill in the blank(s) with the appropriate word(s).
Round to the indicated place value.Round to the nearest hundredth: 1.776
A. 1.77 B. 1.79 C. 1.8 D. 1.78
Write the expression as one logarithm.log4 8 + log4 11
A. log8 88 B. log4 88 C. log8 19 D. log4 19