The angle between the two tangents drawn from an external point to a circle and the angle subtended by the line segment joining the points of the contact at the Centre are supplymentary,
So,
15.) let the unknown angle be x
=》x + 55° = 180°
=》x = 180° - 55°
=》
16. let the unknown angle be n
=》n + 80° = 180°
=》n = 180° - 80°
=》
we are given
For finding inverse function , we do following steps
step-1:
Set f(x)=y
step-2:
Switch x and y
step-3:
now, we can solve for y
Multiply both sides by 9y-2
Add both sides by 2x
now, we can divide both sides by 9x
so, we get inverse function as
................Answer
The answer is 4 but I don’t see that in the answer choices you have provided. Is there anything more to the question?
The 7th tower will be 161 cm tall. You take 115 and divide it by 5 and then you get how much each cube is ,then you get 23 per cube then you multiply 23 by 7 and that's how you get your answer.