Find the common ratio for the follwing sequence. 27, 9, 3, 1, ...

A. 3

B. - 1/3

C. -3

D 1/3

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Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.