Paige and thuy are on a hill by a river. paige throws a stone into the river. her
stone's path is described by the equation y=-3x2 + 9x + 5.
thuy is higher on the hill than paige. she also throws a stone into the river.
the path of her stone is shown in the graph,

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.