Percentage decrease formula =
difference / original x 100%
95-74=21
21/95 x 100% = 22.1052632 ≈ 22.1 ( 3sf )
hope my answer helps
Answer:
C. Each side in the pre-image is multiplied by three to find the corresponding side length in the image.
Step-by-step explanation:
The scale factor multiplies every linear dimension in the pre-image. It is the ratio of image dimensions to pre-image dimensions.
So, for a scale factor of 3, each side in the pre-image is multiplied by 3.
The answer is D if you combine like terms
Answer:
Each shade has a 22.5 degree angle from the middle
Each unshaded has a 67.5 degree angle from the middle.
Step-by-step explanation:
You can solve this by making each unshaded part equal to x and each shaded part equal 1/3x it is a circle so it has to equal 360 so you end up with:
x + 1/3x + x + 1/3x + x + 1/3x + x + 1/3x = 360
Combine Like terms:
16/3x = 360
Multiply both sides by the opposite:
(3/16) (16/3x) = (360) (3/16)
x=135/2 or x=67.5
Then you can plug 67.5 in for x:
1/3x ---> 1/3(67.5) = 22.5
