What are all the numbers between 300 and 400 with fewer than 2 ones

What is the length of the unknown leg in the right triangle ?

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?