Evaluate the determinant.
A. bc
B. a - bc
C. -bc
D. a + bc
Answer: A
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At what points is the given function continuous?f(x, y, z) = ln(x + y + z - 7)
A. All (x, y, z) B. All (x, y, z) in the first octant C. All (x, y, z) such that x + y + z > 7 D. All (x, y, z) such that x + y + z ? 7
Solve the problem.The profit for a product is given by the function P(x) = 35x - 1086, where x is the number of units produced and sold. Find the marginal profit for the product.
A. -$35 per unit B. $1086 per unit C. $35 per unit D. -$1086 per unit
Use a proportion to solve the problem.The ratio of the distances a 7-iron and a 5-iron will drive a golf ball is 5 to 6. If a golfer averages 155 yards with a 
how far should he average with a 
A. 144 yd
B. 129
yd
C. 186 yd
D. 166 yd
Graph the polynomial function. f(x) = -2x3(x + 1)2(x + 4)
A. 
B. 
C. 
D. 