What is most likely reason the powers of the us government are divided

known as separation of powers and insures checks and balances.

Explanation:

The government is divided into three branches to limit the powers of each. They created this so no one branch can exercise the core function of another, this prevents a concentration of powers.

To make sure that one of the three branches does not gain too much power

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.