Which properties were used to simplify the following expression? Select all that apply. 8 + 3(1 - 2)
8 + (3 × 1) - (3 × 2)
8 + 3 - 6
11 - 6
5

associative property of addition
associative property of multiplication
commutative property of addition
commutative property of multiplication
distributive property
identity property of addition
identity property of multiplication

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.