the answer is that it is false
Answer:
a. subtract 7 from 10
Step-by-step explanation:
parenthesis goes before everything in this equation
Answer:
4t³-5t²+2t+200 - (3t³-2t²+5t+100) = t³-3t³-3t+100
Step-by-step explanation:
Answer:
If AB is a tangent to the circle, the triangle ABO is right angled, as the angle where a tangent meets the circumference is always 90 degrees.
We also know that Pythogoras' theorem only holds for right angled triangles.
The hypotenuse is 12 + 8 as 12 is the radius so is 20.
16^2+12^2 = 256 + 144 = 400 = 20^2 so AB must be tangent.
