The graph of which function is decreasing over the interval (-4, ∞o)?

Find the missing dimension extra points

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?

What is the measure of angle x? a.101 b.158 c.44 d.79