Simplify the radical. Assume that all variables represent positive numbers.
A. 2
B. 2
C. 2
D. 8
Answer: C
Mathematics
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Find 
by using the Chain Rule. Express your final answer in w = y2 - x ln y; x = st, y = 
A. s
B. s2
C. s
D. s
Mathematics
Solve the problem.The ellipse 
+ 
= 1 is shifted horizontally and vertically to obtain the ellipse
+ 
= 1.Find the foci of the new ellipse.
A. (5, -2), (5, 6) B. (-2, 2), (6, 2) C. (5, -1), (5, 5) D. (-1, 5), (5, 5)
Mathematics
Determine whether number is rational or irrational.- 
A. Irrational B. Rational
Mathematics
Solve the problem.Five friends drove at an average rate of 60 miles per hour to a weekend retreat. On the way home, they took the same route but averaged 65 miles per hour. What was the distance between home and the retreat if the round trip took 10 hours?
A. 624 mi
B. 7800 mi
C. 312 mi
D. 5
mi
Mathematics