Find the domain of the rational function.r(x) = 
A. All real numbers except -4 and 2.
B. All real numbers except -6 and 6.
C. All real numbers except -2 and 4.
D. All real numbers.
Answer: B
Mathematics
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Determine whether the graph opens upward or downward.f(x) = 3x2 - 24x + 53
A. Upward B. Downward
Mathematics
Solve by the substitution method.
= 59x = 10 + 9y
A. 
B. 
C. {(x, y)|
= 5}
D. ?
Mathematics
Find the greatest common factor of the following.s3t3 and s2t5
A. s3t3 B. s2t3 C. s5t5 D. s2t2
Mathematics
Find the real solutions, if any, of the equation. Use the quadratic formula.7x2 = -12x - 3
A. 
B. 
C. 
D. 
Mathematics