Answer the question.Which of the following statements are true?I: If F1 and F2 are 5 dimensional flats in ?7, then the dimension of F1 ? F2 could have a dimension of 6.II: If F1 and F2 are strictly separated, then F1 ? F2 = ?.
A. I
B. II
C. Neither I or II
D. Both I and II
Answer: B
Mathematics
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Solve the problem.The textbook for a history class costs $48. There are 23 students in the class. Find the total cost of the history books for the class.
A. $71 B. $1081 C. $1056 D. $1104
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Find the equation that the given graph represents.
A. P(x) = -3x3 - 10x2 + 5x + 12 B. P(x) = -3x5 + 2x4 - x2 + 2x - 12 C. P(x) = x4 - 2x2 - 3x + 12 D. P(x) = 2x3 - 12x2 - 5x - 12
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Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. - 
B. - 
C. -24
D. -7
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Find the specified domain.Find the domain of (fg)(x) when f(x) = 
and g(x) = -4x - 5
A. (-?, ?) B. (-?, 12) ? (12, ?) C. (-?, 5) ? (5, ?) D. (-?, -12) ? (-12, ?)
Mathematics