Answer: Jerry earns $73.50
Step-by-step explanation:
let n = the number of hours she worked
10.50n
10.50 x 7 = 73.5
$73.50
Answer:
![\text{Exact area of the sidewalk}=40 \pi\text{ m}^2](https://tex.z-dn.net/?f=%5Ctext%7BExact%20area%20of%20the%20sidewalk%7D%3D40%20%5Cpi%5Ctext%7B%20m%7D%5E2)
![\text{Approximate area of the sidewalk}=125.6\text{ m}^2](https://tex.z-dn.net/?f=%5Ctext%7BApproximate%20area%20of%20the%20sidewalk%7D%3D125.6%5Ctext%7B%20m%7D%5E2)
Step-by-step explanation:
We have been given that at a zoo, the lion pen has a ring-shaped sidewalk around it. The outer edge of the sidewalk is a circle with a radius of 11 m. The inner edge of the sidewalk is a circle with a radius of 9 m.
To find the area of the side walk we will subtract the area of inner edge of the side walk of lion pen from the area of the outer edge of the lion pen.
, where r represents radius of the circle.
![\text{Exact area of the sidewalk}=\pi*\text{(11 m)}^2-\pi*\text{(9 m)}^2](https://tex.z-dn.net/?f=%5Ctext%7BExact%20area%20of%20the%20sidewalk%7D%3D%5Cpi%2A%5Ctext%7B%2811%20m%29%7D%5E2-%5Cpi%2A%5Ctext%7B%289%20m%29%7D%5E2)
![\text{Exact area of the sidewalk}=\pi*\text{121 m}^2-\pi*\text{81 m}^2](https://tex.z-dn.net/?f=%5Ctext%7BExact%20area%20of%20the%20sidewalk%7D%3D%5Cpi%2A%5Ctext%7B121%20m%7D%5E2-%5Cpi%2A%5Ctext%7B81%20m%7D%5E2)
![\text{Exact area of the sidewalk}=40 \pi\text{ m}^2](https://tex.z-dn.net/?f=%5Ctext%7BExact%20area%20of%20the%20sidewalk%7D%3D40%20%5Cpi%5Ctext%7B%20m%7D%5E2)
Therefore, the exact area of the side walk is ![40 \pi\text{ m}^2](https://tex.z-dn.net/?f=40%20%5Cpi%5Ctext%7B%20m%7D%5E2)
To find the approximate area of side walk let us substitute pi equals 3.14.
![\text{Approximate area of the sidewalk}=40*3.14\text{ m}^2](https://tex.z-dn.net/?f=%5Ctext%7BApproximate%20area%20of%20the%20sidewalk%7D%3D40%2A3.14%5Ctext%7B%20m%7D%5E2)
![\text{Approximate area of the sidewalk}=125.6\text{ m}^2](https://tex.z-dn.net/?f=%5Ctext%7BApproximate%20area%20of%20the%20sidewalk%7D%3D125.6%5Ctext%7B%20m%7D%5E2)
Therefore, the approximate area of the side walk is
.
Answer:
{1}
Step-by-step explanation:
A ∩ B ∩ C means A intersection B intersection C. That means the question is asking for a set of numbers that are in sets A, B, and C.
{1} is the answer since it is the only number that is in all three sets.
Answer:
11 units
Step-by-step explanation:
simply subtract -3 from 8, which is the same as adding 3 and 8, so the answer is 11 units.
Step-by-step explanation:
A rigid transnformation is also know as isometrie. <u>This are transformations of the plane that preserves the lengths</u>. There are 3 types of isometries and each one can be combined with the others.
- Reflection (First figure)
- Translation (second figure)
- Rotation (third figure)
Combining this transformations you will be able to transform ΔJKL onto ΔPQR