Multiply.
(x - 9y - 9z)
A. 
x - 9y - 9z
B. 
x - 
y + 9z
C. 
x - 
y - 
z
D. 
x - 
y - 
z
Answer: D
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Determine the amplitude and find the phase shift in radians (to the nearest tenth).y = 
sin x + 
cos x
A. 
, -0.3
B. 
, 0.3
C. 
, -0.3
D. 
, 0.3
Write the word statement in symbols.Eight is equal to eleven minus three.
A. 11 = 8 - 3 B. 11 < 8 + 3 C. 8 - 11 < 3 D. 8 = 11 - 3
Solve the problem.The polynomial 0.0054x3 + 0.0054x2 + 0.117x + 1.32 gives the approximate total earnings of a company, in millions of dollars, where x = 0 corresponds to 2008, x = 1 corresponds to 2009, and so on. This model is valid for the years from 2008 to 2012. Determine the earnings for 2011. Round to the nearest hundredth.
A. $1.87 million B. $1.62 million C. $2.22 million D. $1.77 million
Round the decimal to the indicated place value.14.4073
hundredth
A. 14.4073 B. 14.31 C. 14.41 D. 14.51