Find the square root of 20 1/4​

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

Which of the following parabolas opens down?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =