These two images show steps in a proof of the Pythagorean theorem. Which of the following statements about the proof is false?
a
b
a
b
b
С
с
a
a
a
b
C
с
b
a b
Step 1
b
a
Step 2

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet