Find 
.y = xln x
A. xln x - 1ln x
B. 2xln x - 1ln x
C. 
D. 
2
Answer: B
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Multiply or find the special product.
?
?
A. 
B. 
C. 
D. 
E. 
Find the equation of the parabola described.Focus at (5, 0); vertex at (0, 0)
A. y = 20x2 B. x = 20y2 C. y2 = 20x D. x2 = 20y
Find the domain and range of the relation.
A. domain: {-6, -2, 2, 4}, range: {-5, -2, 2, 6} B. domain: (-?, ?), range: (-?, ?) C. domain: (-?, ?), range: {-6, -2, 2, 4} D. domain: {-5, -2, 2, 6}, range: {-6, -2, 2, 4}
Solve the problem.A store has a sale on workout gear. Mark bought three pairs of shorts and three T-shirts for $70.35 (before tax). Later, he went back and bought two more pairs of shorts and four more T-shirts for $63.90 (before tax). How much did the shorts and T-shirts cost?
A. shorts: $15.05; T-shirts: $8.45 B. shorts: $8.45; T-shirts: $15.05 C. shorts: $14.95; T-shirts: $8.50 D. shorts: $8.50; T-shirts: $14..95