Which is the cosine ratio of ∠A? ACB is right angle triangle. The length of AC is 28, the length of CB is 195, and the length of AB is 197.

A. 195197
B. 28197
C. 28195
D. 19528

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.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?