What is the vertex of f(x)= 5x²+20x-16

Put the events of the cuban missile crisis in the correct sequence

Choose the right phrase to complete the sentence. segregation in the united states in the late 1800s and early 1900s was supported by law alone. by custom alone. by both law and custom.

Which of these is not a purpose of the constitution as explained in the preamble? • to make a better country • to keep states more powerful the the u.s. • to keep peace in the country • to protect freedom