An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.
A. (x2 + 2)3/2(2x + 1)-1/2(x2 - x + 6)
B. 
C. 
D. (x2 + 2)3/2(2x + 1)1/2(x2 - x + 6)
Answer: C
Mathematics
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A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.a1 = 1, an+1 = 
A. 1, 
, 
, 
, 
B. 1, 
, 
, 
, 
C. 1, 
, 20, 
, 840
D. 1, 
, 
, 
, 
Mathematics
Solve the problem.A woman has $2.55 in dimes and nickels. She has 18 more dimes than nickels. How many nickels does she have?
A. 7 B. 5 C. 28 D. 23
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Rationalize the denominator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics
Find two equivalent expressions for the opposite of the polynomial.-x4 - 5x3 - x
A. -(-x4 - 5x3 - x); x4 + 5x3 + x B. -(-x4 - 5x3 - x); x4 + 5x3 + 1 C. -(-x4 - 5x3 - x); -x4 + 5x3 + x D. -(-x4 - 5x3 - x); x4 + 5x3 + x2
Mathematics