Given the graph of the function f(x) = -x3 + 3x; find a formula for g(x) .f(x) = -x3 + 3xg(x) =
?
A. g(x) = -(x + 3)3 + 3(x + 3)
B. g(x) = -x3 + 3x - 3
C. g(x) = -x3 + 3x + 3
D. g(x) = -(x - 3)3 + 3(x - 3)
Answer: D
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Solve the problem.A construction crane lifts a 100-lb bucket originally containing 130 lb of sand at a constant rate. The sand leaks out at a constant rate so that there is only 65 lb of sand left when the crane reaches a height of 50 feet. How much work is done by the crane?
A. 4875 ft ? lb B. 11,500 ft ? lb C. 2250 ft ? lb D. 9875 ft ? lb
Simplify each side of the equation, if possible. Then solve the equation.-2a + 5 + 3a = 10 - 20
A. -15 B. 15 C. 35 D. -35
Complete the following sentence.
?
The symbol 
is read as
?
A. "is less than." B. "is equal to." C. "is less than or equal to." D. "is greater than or equal to." E. "is greater than."
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = - 
- 
w, y = 
- 
w, z = 1 - w, where w is any real number
B. inconsistent
C. x = 
- 
w, y = - 
- 
w, z = 1 - w, where w is any real number
D. x = - 
+ 
w, y = 
+ 
w, z = 1 - w, where w is any real number