Which statement about bc←→ is correct?

bc←→ is a tangent line because △abc is a right triangle.

bc←→ is a tangent line because m∠abc is acute.

bc←→ is a tangent line because m∠abc=90°.

bc←→ is not a tangent line because m∠abc≠90°.

BC is not a tangent line because m∠ABC≠90°.

Step-by-step explanation:

From the given picture, we have given a triangle ΔABC, in which

∠A=25° and ∠C=60°, AB is the radius of the circle.

if BC is tangent to circle then ∠B must equals to 90°because tangent line makes right angle with the radius of the circle.

Since, we know that by angle sum property of a triangle , the sum of all angles of triangle is 180°.

Therefore, in ΔABC

∠A+∠B+∠C=180°

⇒∠B=180°-∠A-∠C

⇒∠B=180°-25° -60°

⇒ ∠B=95°≠90°

⇒ BC is not tangent line .

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

12*c

step-by-step explanation: