Find the second derivative.y = 5x3 - 7x2 + 5
A. 14x - 30
B. 20x - 14
C. 14x - 20
D. 30x - 14
Answer: D
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When you order merchandise from a web site you pay shipping costs 
, in dollars. The shipping costs depend on the weight 
, in pounds, of the merchandise. The relationship is
?
?
If my order weighs 5 pounds more than yours, how do shipping costs compare?
A. My costs are $1.87 more than yours.
B. My costs are $8.65 more than yours.
C. My costs are $8.10 more than yours.
D. My costs are $1.62 more than yours.
Solve.x2 = 24
A. ±6
B. ±2
C. 576
D. ±12
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.6x - 2.1y + 2.7z = 2.03.2x - 7.0y - 1.7z = -4.64.4x + 1.1y + 2.3z = 3.6
A. (0.1, 0.4, 0.7) B. (0.1, 0.3, 0.5) C. (0.2, 0.5, 1.0) D. (0.0, 0.1, 0.2)
Graph the level curves in the first quadrant of the xy-plane for the given function at heights of 
and 
- 
+ y = 4z
A. 
B. 
C. 
D. 
