Subtract. Check by adding.
A. 410
B. 610
C. 320
D. 420
Answer: D
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Provide an appropriate response.Explain how the difference of two polynomials in x, both of degree 3, can be of degree 2.
What will be an ideal response?
Find the second derivative of the function.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Use the square root property to solve the equation. (x - 2)2 = 10
A. 
B. 
C. 
D. 
A steel railroad expands and contracts according to the formula ?l = l??T, where ?l is the change in length, ? is a constant called the coefficient of linear expansion, l is the original length, and ?T is the change in temperature. If a 10 ft steel rail is installed at 0 o F how many inches will it expand when the temperature raises to 180 o F? 
A. ?l = 0.01 in. B. ?l = 0.54 in. C. ?l = 0.14 in. D. ?l = 0.24 in. E. ?l = 2.14 in.