Which equations for the measures of the unknown angles x and y are correct? Check all that apply.
-
a
<= cos()
O x=sin(6)
b
O x = tan-1
y
Dy=sin 1(a)
Oy=cosho)

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?