6x - 2y = -12
X - 6y = -19
Solve systems of equations by substitution

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x