The sides of a right triangle abc are a, b and c, where c is the hypotenuse. what will be the radius of the in circle of this triangle?

Find the length of cu, the triangles are similar.

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers