39/50 simplified fraction

Choose the statement that best summarizes the purpose of King’s “Letter from Birmingham Jail.” to show that the leaders of Birmingham need to find new ways to negotiate with African American leaders instead of jailing them for marching without a permit to demonstrate that the Birmingham clergymen who criticize King want to stop African Americans from gaining equality in their city to explain that the protests led by King in Birmingham are necessary because the local leaders and courts are not willing to confront the issue to illustrate that the violence associated with King’s protests in Alabama is justified because a person who attacks a protestor should also be attacked

Which of the following passages uses hasty generalization? Nine out of ten cool kids at Parker's new school were coloring their hair and wearing cuffed jeans with boots, so he did too. Parker only met a few kids from his school and they all seemed cool; therefore, all the students at his school would likely be cool. The cool kids all had colored hair and wore cuffed jeans and boots because they were cool. When Parker wanted to color his hair and get new boots to go with his jeans, his mom asked, "If everyone jumped off a bridge, would you do that too?"

Find the two square roots of 121.

how far from a concave mirror (radius 27.8 cm ) must an object be placed if its image is to be at infinity? express your answer to three significant figures and include the appropriate units.