Dilate a square with vertices (0,0),(0,4)$ , and (4,0) using the scale factor k=0.5. What is the value of the ratio (new to original) of the perimeters? the areas?

Multiplying an even number of negative numbers gives an answer that is choose from:

Solve the equation x/4 - 5= -8 -27 -12 -7 12

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?