Solve.A box is constructed by cutting out square corners of a rectangular piece of cardboard and folding up the sides. If the cutout corners have sides with length x, then the volume of the box is given by the polynomial 
Factor out the greatest common factor for this expression.
A. 4x(x2 - 18x + 45)
B. 4(x3 - 18x2 + 45x)
C. 4x(x2 + 18x + 45)
D. 2x(2x2 - 36x + 90)
Answer: A
Mathematics
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Solve the given applied problem.A rectangular area of 2,600 ft2 is to be fenced off along the bank of a river; no fence is required along the river. If the material for the fence costs $16 per running foot for the two ends and $15 per running foot for the side parallel to the river, what end length results in a cost of $2,380.
A. 52 ft B. 100 ft C. 50 ft D. 25 ft
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(4 + 2i)(4 - 2i)
A. 12 B. 20 C. 16 + 4i D. 16 - 4i
Mathematics
Use a sum or difference identity to find the exact value.sin 
cos 
+ cos 
sin 
A. 
B. 
C. 1
D. 
Mathematics
Indicate whether the quotient is 0 or undefined.
A. 0 B. undefined
Mathematics