In how many ways can a gymnastics team of 4 be chosen from 9 gymnasts? type a numerical answer in the space provided. do not type spaces in your answer.

How do the graphs of y = 1/x and y=5/x+6 compare?

What is the relationship between all triangles that can be drawn given the same three angles

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?