Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Make the indicated conversion within units of time.Convert 420 seconds to minutes.
A. 13 minutes B. 17 minutes C. 7 minutes D. 3 minutes
Mathematics
Multiply. Write the answer in lowest terms.
? 
A. 12z
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Find s explicitly in terms of the other unknowns: 2s + 3p + st = q
Fill in the blank(s) with the appropriate word(s).
Mathematics
Change the equation 
to quadratic form and solve it by any method. Give the sum of the two solutions of the equation.
?
A. -20 B. -19 C. -8 D. -9 E. -7
Mathematics