9. To adopt the practice that the denominator of a fraction be positive (numerator may be negative or zero),
the set of rational numbers may be built by Q = { me Zane N). Consider each rule from Q to Z.
Use fractions to verify the underlined statement (show by example).
a. Let r(m/n) = mn. Then r is not well-defined: the relation r defined by (m/n, mn) er is not a fetn;
that is, the relation r on Q x Z via xry (y=mn VmeZAneNo: x=m/n) is not a function.

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees

Proportions in triangles solve for x