Write each fraction or mixed numbers as a decimal 33/40

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square