Write the augmented matrix for the system. Do not solve. 5x + 9y + 9z = 61 4x + 2y + 9z = 70 4x + 3y + 6z = 50
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Assume that f is an even function, g is an odd function, and both f and g are defined on the entire real line. State whether the combination of functions (where defined) is even or odd.f ? f
A. Even B. Odd
Mathematics
Verify the identity.(1 - cos x)(1 + cos x) = sin2 x
What will be an ideal response?
Mathematics
Factor by factoring out the GCF.-18x3 - 36x2 + 27x
A. -9x(2x2 - 4x + 3) B. -18x(x2 + 2x - 3) C. -9x(2x2 + 4x - 3) D. -9(2x3 + 4x2 - 3x)
Mathematics
Write the following as an algebraic expression in u, u > 0.cos(arctan u)
A. u
B. 
C. 
D. 
Mathematics