Factor completely, if possible.x2 - 16xy + 64y2
A. (x - 8y)(x + 8y)
B. (x + 8y)2
C. (x - 8y)2
D. Prime
Answer: C
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Consider these figures:
Which figure above, if any, is topologically equivalent to the given figure? Identify the topologically equivalent figure by letter.A coffee cup
A. A B. B C. C D. None of these
Use graphical methods to find values of x and y satisfying the given conditions. Find the value of the maximum or minimum.Find x ? 0 and y ? 0 such that2x - 4y ? 10 2x + y ? 15 and z = 4x + 5y is minimized.
A. Minimum of 20 when x = 5 and y = 0 B. Minimum of 39 when x = 1 and y = 7 C. Minimum of 75 when x = 0 and y = 15 D. Minimum of 33 when x = 7 and y = 1
Use the commutative or the associative property to complete the statement. State which property is used.-3 ? 1 = 1 ? 
A. 3; associative property B. 3; commutative property C. -3; commutative property D. -3; associative property
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, 
< ? < ?Find cos 
.
A. 
B. - 
C. 
D. - 