Assume that Q, R, and S are the angles of a triangle, with opposite sides q, r, and s respectively. Select all of the following that represent the law of cosines. q2 = r2 + s2 – 2rscos(Q)

q2 = r2 + s2 – 2qscos(R)

r2 = q2 + s2 – 2qscos(Q)

r2 = q2 + s2 – 2qscos(R)

s2 = q2 + r2 – 2qrcos(S)

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

12

step-by-step explanation:

1 1/7 hope i

step-by-step explanation:

8/7 = (1 * 7 + 1) / 7 = 1 + 1/7 = 1 1/7

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.