Plot the graph of the equation. Check for symmetries and find all x- and y-intercepts.y = x3 + 5x2 - x - 5

A.
B.
C.
D.


Answer: B

Mathematics

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Determine the indicated function.A rectangular garden is to be surrounded on three sides by a fence costing $5 per foot and on one side by a stone wall costing $20 per foot. Let x be the length of the side with the stone wall, and let y be the length of each of the other three sides. Express the cost C of enclosing the garden as a function of the length and width.

A. C(x, y) = 20x - 15y B. C(x, y) = (20x)(15y) C. C(x, y) = 15x + 20y D. C(x, y) = 20x + 15y

Mathematics

Multiply and simplify.cos ? sin ? (sec ? - csc ?)

A. cos2? - 1 B. 1 C. sin ? - cos ? D. sin ? - 2 csc ?

Mathematics

Use the definition of a logarithm to prove . ? 

A. By the definition  means .
B. By the definition  means .
C. By the definition  means .

Mathematics

Factor the trinomial.n4 - 6n2 - 16

A. (n2 - 2)(n2 - 8) B. (n2 + 2)(n2 - 8) C. (n2 + 6n + 2)(n2 - n - 8) D. (n2 - 2)(n2 + 8)

Mathematics