<span><span>Rene Descartes is known
for the Cartesian coordinate system and the belief that mathematics can explain
all of nature. He is the father of analytical geometry (by using algebra
to describe geometry). We often relate to his Cartesian coordinate system in
maps or graphs to know how far along and how far up it is. </span>He
was also the one who invented the representation of unknowns in
mathematical equations by using x, y, and z, and then the
knowns by using a, b, and c<span>.</span></span>
A) Protect and secure rights for African Americans.
B. same as turbidity currents
Answer:
FDR approves the “destroyers for bases” deal with Great Britain. Through this deal, the United States transferred destroyers to the British Navy in exchange for leases for British naval and air bases.
Explanation:
This allowed Britain to have new ships for the British Navy without buying them with cash.