I can’t quite figure out the right answer, but it’s either A or D.
Answer:
14 - 20 + 5
14 - 15 = -1
-1
If you take 14 meters and you go down 20 meters that is 14 - 20
Then, if you go up 5 meters, that is 14 - 20 + 5.
So simplify 14 - 20 + 5.
Simplified: 14 - 15
So the answer is -1 meter
the value of x is 8 cm.
<u>Step-by-step explanation:</u>
Correct Question : In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 220π cm2. What is the value of x? Enter your answer in the box.
We have ,
the area of a circle = πr²
the outer circle area = ![\pi(2x)^2 =4\pi x^2](https://tex.z-dn.net/?f=%5Cpi%282x%29%5E2%20%3D4%5Cpi%20x%5E2)
the inside circle area = ![\pi (6)^2= 36\pi](https://tex.z-dn.net/?f=%5Cpi%20%286%29%5E2%3D%2036%5Cpi)
According to Question,
the outer circle area - the inside circle area = he shaded region
⇒ ![\pi (4x^2)-36\pi =220\pi](https://tex.z-dn.net/?f=%5Cpi%20%284x%5E2%29-36%5Cpi%20%3D220%5Cpi)
⇒ ![x^2-9 =55](https://tex.z-dn.net/?f=x%5E2-9%20%3D55)
⇒ ![x^2=64](https://tex.z-dn.net/?f=x%5E2%3D64)
⇒![x =\sqrt{64}=8](https://tex.z-dn.net/?f=x%20%3D%5Csqrt%7B64%7D%3D8)
Therefore , the value of x is 8 cm.
The answer is B I think (the picture is a little hard to see)
Answer:
43 1 ÷12
Step-by-step explanation:
The computation of the length of the original roll of papers is shown below:
36 1 ÷3 and 6 3 ÷ 4 together
Now convert the above fractions into a number
36 1 ÷ 3 = 109 ÷3
And,
6 3 ÷4 = 27 ÷ 4
Now add these two numbers i.e.
109 ÷3 + 27 ÷ 4
= 436 + 81 ÷ 12
= 517 ÷12
= 43 1 ÷12