Solve the quadratic inequality. Write your answer in interval notation.x2 - 10x + 21 ? 0
A. (-?, 3]
B. (-?, 3] ? [7, ?)
C. [7, ?)
D. [3, 7]
Answer: B
Mathematics
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Find a rational function that satisfies the given conditions. Answers may vary, but try to give the simplest answer possible.Vertical asymptotes x = 1, x = 7; x-intercept 
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Use the given graph to find the x-intercept and the zero of the function.
A. (3, 0); 3 B. (0, 0); 0 C. (-5, 3); -5 D. (-5, 0); -5
Mathematics
For the pair of vectors, find 
.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Evaluate the discriminant, and predict the type and number of solutions.s2 = -8s - 2
A. 0, one rational B. 56, two different rational C. -56, two different imaginary D. 56, two different irrational
Mathematics