A rectangular package to be sent by a delivery service can have a maximum combined length and girth (perimeter of a cross section) of 168 inches.
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Write a function that represents the volume of the package.
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A. V(x) = - 4x2(42 + x)
B. V(x) = 4x2(42 + x)
C. V(x) = 4x2(42 -x)
D. V(x) = 4x2(-42 - x)
E. V(x) = - 4x2(42 - x)
Answer: C
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Use your graphing calculator to determine if the equation appears to be an identity by graphing the left expression and right expression together.
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A. This is not an identity B. This is an identity
Find the equation of the quadratic function that has the given vertex and given point on its graph.Vertex: (-2, -3) through: (-5, 24)
A. P(x) = -3x2 + 12x + 3 B. P(x) = 3x2 + 12x + 9 C. P(x) = 3x2 + 2x + 3 D. P(x) = -5x2 - 12x - 9
Express the sum or difference as a product.cos 6x + cos 4x
A. 2 cos 5x cos x B. 2 cos 5x C. 2 sin 5x sin x D. 2 cos 5x sin x
Use the graph of the equation 
shown below to identify the graph of one complete cycle of the equation 
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A. ?
B. ?
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C. ?
D. ?
E. ?
