The figure below shows a triangular wooden frame ABC. The side AD of the frame has rotted and needs to be replaced: D 15 BO 30 10 in. What is the length of the wood that is needed to replace AD? 4.2 inches 5.7 inches 2.5 inches 1.3 inches

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%