The formula n(a +ab)
2 gives the partial sum of an arithmetic sequence. What is the formula solved for an?
2S-a,
a,=
n2
2S+ an
n
a,= 2S+a, 1+1
O a, = 2S-a, nun

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit