Convert. When necessary, round the answer to two decimal places.420 minutes = hours
A. 17
B. 7
C. 168
D. 3
Answer: B
Mathematics
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Solve the equation.2 - 
= 6
A. x = ±4 B. x = -8 C. x = -4 D. The equation is a contradiction.
Mathematics
Evaluate the improper integral.
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(8x3/2)(7x2/3)
A. 56x13/5 B. 56x5/6 C. 56x13/6 D. 56x3/2
Mathematics
Factor completely. If a polynomial cannot be factored, say it is prime.4m2 - 49n4
A. (2m - 7n2)2 B. (2m - 7n2)(2m + 7n2) C. (2m + 7n2)2 D. prime
Mathematics