Francesca and Will want to find out if the triangle formed by connecting the points G, H, and I is a right triangle.

Francesca's Plan:

• Use the distance formula to find the lengths of the sides.

• Then see if the side lengths satisfy the equation a2+b2=c2 to see if it is a right triangle.

Will's plan:

• Find the slopes of the three sides.

• See if any two slopes are the same.

Which student’s plan will work?

A-Only Fransecas plan is correct
B-only will plan is correct
C-netheir plans is correct
D-both plans are correct

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