Determine if each triangle is acute, right, or obtuse.
15,12,19
14,11,8
6,7,5
show all necessary work!

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

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.