Which statement describes the life of rené descartes?
he studied only mathematics his entire life.
he always loved mathematics, but started his career studying law and joining the army.
he devoted his life to the study of what was already known to be true.
he is known as the father of mathematics and the father of psychology.

- "He always loved mathematics, but started his career studying law and joining the army" is the right statement which describes the life of Rene Descartes.

Explanation:-

Rene Descartes also called the "father of modern philosophy". He always loved mathematics but he started his career studying law and got a degree and a license in civil and canon law at the University of Poiters, then joined the army. But after leaving army he started his study and research in mathematics and philosophy, which shows that he always loved mathematics.

Thus the life of Rene Descartes is described as "He always loved mathematics, but started his career studying law and joining the army."

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm

step-by-step explanation: