Simplify.
A. 
B. 
C. 
D. none of these
Answer: B
Mathematics
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Provide an appropriate response.
= 
.
A. 2n - m B. 2m - 2n C. 2m/n D. 2m - n
Mathematics
Solve by making a u-substitution.x6 + 9x3 + 8 = 0
A. {-2, 1} B. {2, -1} C. {2, 1} D. {-2, -1}
Mathematics
Find the product.(w - 7)2
A. 49w2 - 14w + 49 B. w + 49 C. w2 - 14w + 49 D. w2 + 49
Mathematics
Solve the problem.The focal length f of a lens with index of refraction n is 
= (n - 1)
where R1and R2 are the radii of curvature of the front and back surfaces of the lens. Express f as a rational expression.
A. f = 
B. f = 
C. f = 
D. f = 
Mathematics