Choose the system of equations that matches the following graph:
1-6
5
4
3
v
x - 2y = -10
3x - y = 12
//
©x+2y=-10
3x + y = 12
ox-2y =-10
3x + y = 12
.

3x - y = 12 and x + 2y = - 10

Step-by-step explanation:

The first straight line passes through the points (2,-6) and (4,0).

Therefore, the equation of the straight line from two point form

⇒ y = 3(x - 4) = 3x - 12

⇒ 3x - y = 12 .......... (1)

Again, the second straight line passes through the points (2,-6) and (0,-5).

Therefore, the equation of this straight line will be

⇒ - 2(y + 5) = x

⇒ x + 2y = - 10 ......... (1)

Therefore, (1) and (2) are the system of equations. (Answer)

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

step-by-step explanation:

a and d