Which of the following tools can be used to prove a statement using coordinate methods? select all that apply the distance formula the equation of a line theorems about parallel lines the midpoint formula theorems about perpendicular lines

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.