Solve.x3 + 10x2 + 23x ? 0
A. (-?, -5 - 
] ? [0, ? ]
B. [-5 - 
, ?)
C. [-5 - 
, -5 + 
] ? [0, ?)
D. (-?, -5 - 
] ? [-5 + 
, ?)
Answer: C
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Solve the problem.A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 inches by 25 inches by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a function of x.
A. V(x) = x(12 - x)(25 - x) B. V(x) = x(12 - 2x)(25 - 2x) C. V(x) = (12 - 2x)(25 - 2x) D. V(x) = (12 - x)(25 - x)
Solve the logarithmic equation. Give an exact answer.log2 4 - log2 x = 4
A. 
B. 
C. 
D. 
Use a graphing utility to (a) plot the graphs of the given functions and (b) find the approximate x-coordinates of the points of intersection of the graphs. Then find an approximation of the volume of the solid obtained by revolving the region bounded by the graphs of the functions about the x-axis. Round answers to two decimal places.
Find the x-intercepts of the graph of the equation 
a. ( -10, 0 )
b. 
c. 
d. ( 10, 0 )
e. 