Simplify 3 y + 2 + 4y - 2y + 6 - 4 + 3 answer in the box

How do i solve using pythagorean theorem?

Three coins are flipped. what is the probability that there will be at least two tails?

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?