Find the least common denominator of each fraction, show all of your work:
1/3 and 3/4

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Bring the fraction a/a-4 to a denominator of 16-a^2

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?