According to the commutative property of multiplication, which expression is equivalent to (3 + )? -2(3 + 7) 3(7 – 2) (3 + ) 3 + 7 – 2

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?