Answer:
E
Step-by-step explanation:
let a, b, c represent the number of students in 6th, 7th, 8th grade
ratio of students : teachers = 28 : 1
There are 82 teachers , so 28 × 82 = 2296 students
Then
a + b + c = 2296 , that is
828 + b + c = 2296 ( subtract 828 from both sides )
b + c = 1468 → E
Answer:
The Area of the shaded region = (Area of the largest circle) – (Area of the circle with radius 3) – (Area of the circle with radius 2). Whatever is left over is the shaded region. The diameter of the largest circle is 10, so its radius is 5 and thus its area is 25π. SO do this in that problem and you will get the answer.
Step-by-step explanation:
pls give me brainliest
Answer:
![{( \sqrt{3.5} })^{2} - {( \sqrt{1.5} )}^{2}](https://tex.z-dn.net/?f=%20%7B%28%20%5Csqrt%7B3.5%7D%20%7D%29%5E%7B2%7D%20%20-%20%20%7B%28%20%5Csqrt%7B1.5%7D%20%29%7D%5E%7B2%7D%20)
Step-by-step explanation:
The difference of two squares identity is
![{x}^{2} - {y}^{2} = (x - y)(x + y)](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%20-%20%20%7By%7D%5E%7B2%7D%20%20%3D%20%28x%20%20-%20y%29%28x%20%2B%20y%29)
When we let
![\sqrt{3.5}](https://tex.z-dn.net/?f=%20%5Csqrt%7B3.5%7D%20)
and
![\sqrt{1.5}](https://tex.z-dn.net/?f=%20%5Csqrt%7B1.5%7D%20)
, we get:
![{( \sqrt{3.5} )}^{2} - {( \sqrt{1.5}) }^{2} = (3.5 - 1.5)(3.5 + 1.5)](https://tex.z-dn.net/?f=%20%7B%28%20%5Csqrt%7B3.5%7D%20%29%7D%5E%7B2%7D%20%20-%20%20%7B%28%20%5Csqrt%7B1.5%7D%29%20%7D%5E%7B2%7D%20%20%3D%20%283.5%20-%201.5%29%283.5%20%2B%201.5%29)
This will simplify to give us the required factors
![{( \sqrt{3.5} )}^{2} - {( \sqrt{1.5}) }^{2} =2 \times 5](https://tex.z-dn.net/?f=%20%7B%28%20%5Csqrt%7B3.5%7D%20%29%7D%5E%7B2%7D%20%20-%20%20%7B%28%20%5Csqrt%7B1.5%7D%29%20%7D%5E%7B2%7D%20%20%3D2%20%5Ctimes%205)
Answer:
The volume is 160 inches
Step-by-step explanation:
If u search in googl volume of pyramid and add in the lengths it will give u the answer!
the formula is lwh/3
Answer:
95.40
Step-by-step explanation:
The sales tax is an equivelant to 5.40 dollars :)