Classify these numbers as rational or irrational

-4/5, 2.5, 0.4, √16 are rational and √2 is irrational.

Step-by-step explanation:

-4/5 is a rational number.

Reason: It is in the fraction form with -4 in the numerator and 5 in the denominator.  .

√2 is irrational.

Reason: since it cannot be written as a fraction.

2.5 is rational number.

Reason: It can be written in the form of fraction such as 5/2.

0.4 is represented with a bar above the 4 which means that 4 gets repeated. It is a rational number

Reason: because it an integer.

√16 is rational.

Reason: It can be simplified as +4 or -4 which are integers.

answer: y=4000x+14000

step-by-step explanation:

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.