Suppose we have four coins and possibly one coin is either too light or too heavy (all four might be true). (a) Show how to determine which of the nine possible situations holds with just two weighings, if given one additional coin known to be true. (b) Show that two weighings are not sufficient without the extra true coin

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Adistribution has the five-number summary shown below. what is the third quartile, q3, of this distribution? 22, 34, 41, 55, 62