Find the value of the permutation.P(7, 6)
A. 7
B. 2520
C. 2
D. 5040
Answer: D
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Solve the inequality. Graph the solution set, and state the solution set in interval notation.|3k - 5| - 3 < 3
A. 
B. 
C. 
? 
D. 
Solve the problem.A sloping ramp is to be built with vertical supports at points B, C, and D as shown. The supports at A and E are 7 and 11 feet high, respectively. How high must the supports be at the points B, C, and D?
A. B = 8 ft, C = 9.5 ft, D = 10 ft B. B = 9 ft, C = 12 ft, D = 13 ft C. B = 8 ft, C = 9.5 ft, D = 11 ft D. B = 8 ft, C = 10.5 ft, D = 13.5 ft
Find the equation of the parabola passing through the given points.
?
, 
, and 
?
A. ?
B. ?
C. ?
D. ?
E. none of these
Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes B. No