Find the difference.6 - 9
A. -15
B. 15
C. 3
D. -3
Answer: D
Mathematics
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Solve the problem.Show that the vectors 
b + 
a and 
b - 
a are orthogonal.
What will be an ideal response?
Mathematics
Determine if the number is divisible by 2, 3, 4, 5, 6, 8, 9, 10, and/or 12.3358
A. 4 B. 2 C. 2, 3, 4 D. 3, 4
Mathematics
Find the mean of the set of data. Round to the nearest tenth.229, 221, 213, 213, 213, 213, 221, 215, 215, 215, 221, 221
A. 217.7 B. 217.5 C. 218.4 D. 217.2
Mathematics
Find the value of k so that the equation will have exactly one rational solution.49x2 + kx + 64 = 0
A. 56 or -56 B. 112 C. 112 or -112 D. -112
Mathematics