Solve the system of equations. 3x - 4y = -3 6x + 2z = - 
2y - 4z = 4
A. x = - 
, y = 
, z = 
B. x = 3, y = 3, z = 
C. x = - 
, y = 
, z = - 
D. Inconsistent
Answer: C
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An open box is to be constructed from a piece of cardboard 24 cm by 35 cm by cutting squares of side length x from each corner and folding up the sides, as shown in the figure.
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(a) Express the volume V of the box as a function of x.
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__________
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(b) What is the domain of V? (Use the fact that length and volume must be positive.)
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__________ 
__________
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(c) Draw a graph of the function V and use it to estimate the maximum volume for such a box. Please round the answer to the nearest whole number.
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__________ cm3
What will be an ideal response?
Determine whether the given ordered pair is a solution to the system of equations.
6x + 1 = -1 - y-6x - 4y = -1
A. Yes B. No
Find the product.(4x + 9)(4x - 9)
A. 4x2 - 72x - 81 B. 16x2 - 72x - 81 C. 16x2 - 81 D. 16x2+ 72x - 81
Use both properties of equality to solve the equation.2x - 6 = 42 - 6x
A. -6 B. 48 C. 6 D. -4