Simplify the expression. Assume that all variables represent nonnegative real numbers. y
+ 
- 6y
A. (3x - y)(3x + y)
B. (3x - y)2
C. (2x - y)2
D. (2x - y)(2x + y)
Answer: B
Mathematics
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-5x5)(3x4)
A. -15x9 B. 8x20 C. -15x20 D. 8x9
Mathematics
Find the derivative of y with respect to x.y = 3 sin-1 (5x4)
A. 
B. 
C. 
D. 
Mathematics
For the given functions f and g, find the requested function and state its domain.f(x) = 8x + 8; g(x) = 5x + 9Find f ? g.
A. (f ? g)(x) = 40x2 + 112x + 72; all real numbers B. (f ? g)(x) = 40x2 + 72; {x|x ? 72} C. (f ? g)(x) = 13x2 + 112x + 17; all real numbers D. (f ? g)(x) = 40x2 + 49x + 72; {x|x ? 72}
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 
Mathematics