Subtract.4x4?+ 9x3?+ 1
A. 3x4 + 15x3 + x2 - 8x
B. 3x4 + 15x3 + x2 - 9x + 1
C. 3x4 + 15x3 - x2 + 9x + 1
D. 3x4 + 3x3 - x2 - 9x + 1
Answer: C
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Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. If the force of attraction is 
when the masses are 
apart, what is the attraction when the masses are 
apart?
A. 4 lb B. 1 lb C. 3 lb D. 2 lb
Divide and simplify to the form a + bi.
A. 
+ 
i
B. 15 - 5i
C. 
- 
i
D. 
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = (-x)2
A. 
B. 
C. 
D. 
Find any inflection points given the equation.f(x) = ln (10 - x2)
A. Inflection point at (-ln 10, 0) B. No inflection points C. Inflection point at (0, -ln 10) D. Inflection point at (0, ln 10)