Triangle a c b is shown. angle a c b is a right angle. altitude h is drawn from point c to point d on side a b, forming a right angle. side a c is labeled b and side c b is labeled a. the length of a d is 6 and the length of side d b is 14. use the geometric mean (leg) theorem. what is the value of a? 7 startroot 2 endroot 2 startroot 70 endroot 20 startroot 5 endroot 70 startroot 5 endroot

Demonstrate the proof of your new polynomial identity through an algebraic proof and a numerical proof in an engaging way! make it so the whole world wants to purchase your polynomial identity and can't imagine living without it! you must: label and display your new polynomial identity prove that it is true through an algebraic proof, identifying each step demonstrate that your polynomial identity works on numerical relationships create your own using the columns below. see what happens when different binomials or trinomials are combined. square one factor from column a and add it to one factor from column b to develop your own identity. column a column b (x − y) (x2 + 2xy + y2) (x + y) (x2 − 2xy + y2) (y + x) (ax + b) (y − x) (cy + d)

The table shows the number of students who signed up for different after school activities. activity students cooking 9 chess 4 photography 8 robotics 11 select the true statements about the information in the table.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.