From a pool of 12 candidates, the offices of president, vice-president, secretary, and treasurer will be filled. In how many different ways can the offices be filled?
?
A. 12,380
B. 13,380
C. 12,880
D. 13,880
E. 11,880
Answer: E
Mathematics
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Decide whether the expression is or is not an identity.csc2 
tan 
= csc x
A. Not an identity B. Identity
Mathematics
Convert as indicated.70 cm to millimeters
A. 7000 mm B. 0.7 mm C. 70 mm D. 700 mm
Mathematics
Use the given equation to find the missing member of each of the given ordered pairs. Assume the ordered pairs are in the form (x, y).y = -x - 1; ( , 5), ( , 0), ( , -1)
A. -6; 5; -1 B. -6; -1; 0 C. -6; -1; 5 D. -6; -8; 0
Mathematics
Factor the trinomial completely.15a2 + 8ab - 16b2
A. (15a + b)(a - 16b) B. (3a - 4b)(5a + 4b) C. (15a + 4b)(a - 4b) D. (3a + 4b)(5a - 4b)
Mathematics