The brain volumes ​(​cm^3) of 50 brains vary from a low of 906cm^3 to a high of 1462 cm^3 . Use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 172.1cm^3 ​, assuming the estimate is accurate if it is within 15 cm^3.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.