Determine whether f is continuous at c.f(x) = 9x4 - 3x3 + x - 8;c = 8
A. continuous
B. not continuous
Answer: A
Mathematics
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Multiply and simplify.(cos x - sin x)2
A. 1 - 2 sin x cos x B. 1 C. cos2x + 2 sin2x D. cos2x + 2 sin x - sin2x
Mathematics
Find the sum.
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?
A. 
B. 
C. 
D. 
E. 
Mathematics
?Use Cramer's Rule to solve the system of equations 
.
?
A. ?
, 
B. ?
, 
C. ?
, 
D. ?
, 
E. ?
, 
Mathematics
Convert as indicated.0.9 m to millimeters
A. 90 mm B. 0.0009 mm C. 9000 mm D. 900 mm
Mathematics