Divide 7 by 19.
The answer is 0.368421053
If you have any further questions feel free to ask.
Hope this helps.
Answer:
Step-by-step explanation:
By geometric mean property:
By Pythagoras Theorem:
Bill should put the brackets around 18-9 so the correct answer is option B. 10- 4 +3 x (18-9)
The area of the shaded region = 330 sq cm
Step-by-step explanation:
Given,
The radius of small circle (r) = 4 cm
The radius of large circle (R) = 11 cm
To find the shaded region
Formula
The area of circle of radius r = π
sq cm
So, The radius of the small circle = π×
sq cm = 16π sq cm
The radius of the large circle = π×
sq cm = 121π sq cm
Hence the area of the shaded region = 121π-16π sq cm
= 105π sq cm
= 105 ×
sq cm = 330 sq cm