How did the federal government promoted westward expansion in a
variety of ways.

The Federal government responded with measures (Homestead Act, transcontinental railroad) and military campaigns designed to encourage settlement, solidify Union control of the trans-Mississippi West, and further marginalize the physical and cultural presence of tribes native to the West.

the statement the greek philosophers aristotle and plato would be most likely to agree with is statement c, a countries leader should be motivated by the common good of the country.

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°