Simplify.-(-8x4 - 7x3 - x2 + 3.8)
A. -8x4 - 7x3 - x2 + 3.8
B. 8x4 - 7x3 + x2 - 3.8
C. 8x4 + 7x3 + x2 - 3.8
D. 8x4 - 7x3 - x2 + 3.8
Answer: C
Mathematics
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x - 
x = 6
A. 60 B. -60 C. -120 D. 120
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Write the system of equations associated with the augmented matrix. Do not solve.
A. x = 3 y = 5 z = 8 B. x = -3 y = -5 z = -8 C. x = 5 y = 3 z = 0 D. x = 0 y = -8 z =-11
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Find the amplitude, period, or phase shift of the given function as requested.Find the amplitude of y = 3 cos
A. 3
B. -3
C. - 
D. 
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