For every ten yards on a football field there is a boldly marked line labeled with the amount of yards. each of those lines is perpendicular to both sidelines. what can be said about the relationship of the sidelines? justify your answer.
a. the sidelines are perpendicular to each other by the definition of the transitive property
b. the sidelines are parallel by the same-side interior angles theorem
c. the sidelines are perpendicular by the perpendicular transversal theorem
d. the sidelines are parallel because they are perpendicular to the same line.

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Write the fraction or mixed number and the decimal shown by the model

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0