A= [3 0 2 -1] b= [2 8 .6 3] what is matrix a + matrix d?

A + B = [5  8  2.6  2]

Explanation:

Adding matrices adds up by element to the corresponding element of the other matrix.

A + B = ...

= [3 0 2 -1] + [2 8 .6 3]

= [3+2  0+8  2+.6  -1+3]

= [5  8  2.6  2]

they believed democracy was worth the fight

for the 2 countries u can do china and america because america has a democratic government while china has a communist government.

a democracy is a government run by the people either by directly voting or indirectly by electing representatives. an oligarchy is a government run by a few or a small group of people. a democracy and oligarchy are similar because both in an oligarchy and an indirect democracy, a small group of induvial determine the laws for a large group of people they are different because in an oligarchy it is easier to control and they do not have to answer to a large number of people in the country, unlike a democracy where they do have to answer to a large number of people an county that is a democracy would be the united states. a country that is an oligarchy would be the china.