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Mathematics
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Determine the amplitude and find the phase shift in radians (to the nearest tenth).y = 2 sin x - 9 cos x
A. 
, 0.2
B. 170, 0.2
C. 170, -0.2
D. 
, -0.2
Mathematics
Provide an appropriate response.Convert the decimal .980980980. . . to a fraction by writing it as the infinite series 
A. 0.981
B. 
C. 0.979
D. 0.98198198
Mathematics
Write the decimal number in words.9.4
A. nine and four millionths B. nine and four thousandths C. nine and four hundredths D. nine and four tenths
Mathematics
Solve the equation.7x - 6x = 11
A. {0}
B. 
C. {11}
D. {-11}
Mathematics