∠a and \angle b∠b are vertical angles. if m\angle a=(2x+1)^{\circ}∠a=(2x+1)
∘
and m\angle b=(8x-17)^{\circ}∠b=(8x−17)
∘
, then find the value of x.

Vertical angles are the same.

Set the two equations to equal each other ans solve for x:

2x + 1 = 8x -17

Add 17 to both sides:

2x + 18 = 8x

Subtract 2x from both sides:

18 = 6x

Divide both sides by 6:

x = 18/6

x = 3

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

the diameter is 16 cm. are you a teacher?

step-by-step explanation: