Find the measure of ∠a if ∠a = 3 2 x + 20 ∠b = 7 2 x + 20 ∠c = 5 2 x + 40 ∠d = 3 2 x + 10

65°

Step-by-step explanation:

Opposite angles in a cyclic quadrilateral are supplementary.

5

2

x + 40 +

3

2

x + 20 = 180

x = 30

then,

∠A =

3

2

x + 20

∠A =

3

2

(30) + 20 = 65

step-by-step explanation:

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: