Suppose that there are 6 people at a bar. For any pair of people, ei-ther they are mutual friends or mutual enemies. Use the pigeonhole principleto show that either 3 of the people at the bar are all mutual friends, or that 3of the people at the bar are all mutual enemie

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

which expression represents the approximate length of bc?

step-by-step explanation:

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse