Answer:

Step-by-step explanation:
The area of a circle is given by 
For circle B, the radius is 3 cm, it has an area of 
Circle D also has a radius of 1 cm. Its area is 
Circle P also has a radius of 1 cm and area 
The area of the shaded region is then 
The answer is 49/9 because you can first convert the fraction into a decimal and devide 4 and 0.9 and you will get 5.4 repeating and which is 49/9
<u>Answer:</u>
<h2>
θ ≈ 81.37°</h2>
<u>Explanation:</u>
let the angle the ladder makes with the ground be θ
θ = cos⁻¹(3/20)
θ = cos⁻¹(0.15)
θ ≈ 81.37°
Answer:
circle T with radius 8 and 1/ 2 inches
Step-by-step explanation:
Answer:
n = 0.38 rotation per second
Step-by-step explanation:
The device rotates according to the mathematical equation :
...(1)
Where n is the rotational speed and is measured in rotations per second (s).
r is radius of the circulator and is measured in meters (m).
We need to find the rotational speed when radius is 1.7 m. Put r = 1.7 m in equation (1).

Hence, the rotational speed is 0.38 rotation per second.