Solve the quadratic inequality. Write your answer in interval notation.x2 - 3x - 18 ? 0
A. (-?, -3]
B. [6, ?)
C. [-3, 6]
D. (-?, -3] ? [6, ?)
Answer: C
Mathematics
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Find the intersection.x = -2 + 8t, y = 8 - 5t, z = 9 + 8t ; 3x + 8y - 7z = 2
A. (6, 3, 17)
B. (-10, 13, 1)
C. 
D. 
Mathematics
Graph the solution set of the inequality, where x is an integer, on the number line.-1 < x + 2 ? 6
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response. For f(x) = 5x - 2 is the sequence f(1), f(2), f(3), ... arithmetic, geometric, or neither?
A. geometric B. neither C. arithmetic
Mathematics
Find the direction angles of the vector. Round to the nearest degree, if necessary.v = -3i + 2j - 4k
A. ? = 124°, ? = 68°, ? = 138° B. ? = 129°, ? = 65°, ? = 147° C. ? = 137°, ? = 61°, ? = 166° D. ? = 125°, ? = 67°, ? = 140°
Mathematics