Find the domain of the rational function.f(x) = 
A. {x|x ? -4, x ? 4}
B. {x|x ? 0, x ? -16}
C. {x|x ? -4, x ? 4, x ? -9}
D. all real numbers
Answer: D
Mathematics
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Find a formula for the function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Find the limit.
A. 0
B. 
C. -
D. Does not exist
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, write "prime."3t2 + t - 44
A. (3t - 4)(t + 11) B. (3t + 4)(t - 11) C. (3t + 11)(t - 4) D. (3t - 11)(t + 4)
Mathematics
Solve the problem.S(x) = -x3 + 6x2 + 288x + 4000, 4 ? x ? 20 is an approximation to the number of salmon swimming upstream to spawn, where x represents the water temperature in degrees Celsius. Find the temperature that produces the maximum number of salmon.
A. 12°C B. 4°C C. 20°C D. 8°C
Mathematics