Answer:
A =7 B=14
Step-by-step explanation:
AREA OF RING
PERIMETER OF RING
1/2 or 0.5 hope this helps
Answer:
Option C is correct.
Equation of a line
passing through (0,6) and (9,0).
Explanation:
Given the two points (0, 6) and (9 ,0).
To find the equation for the given two points
and
is,
; where m is the slope and is given by:
![m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_%7B2%7D-y_%7B1%7D%7D%7Bx_%7B2%7D-x_%7B1%7D%7D)
First find the slope m:
![m=\frac{0-6}{9-0} =\frac{-6}{9} =\frac{-2}{3}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B0-6%7D%7B9-0%7D%20%3D%5Cfrac%7B-6%7D%7B9%7D%20%3D%5Cfrac%7B-2%7D%7B3%7D)
Substitute this value in equation of line:
or
![y-6=\frac{-2}{3} x](https://tex.z-dn.net/?f=y-6%3D%5Cfrac%7B-2%7D%7B3%7D%20x)
⇒ ![y=\frac{-2}{3}x+6](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-2%7D%7B3%7Dx%2B6)
Therefore, the equation for the given point is: ![y=\frac{-2}{3}x+6](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-2%7D%7B3%7Dx%2B6)
Answer:
p ≥ 53
Step-by-step explanation:
Answer: c.
Step-by-step explanation:
As per given , we have
Total number of residents injured from roller-skating =1,800
Total number of deaths from roller-skating = 90
Formula for Mortality rate : ![Mortaility\ rate= \dfrac{Deaths\ due \ to\ injury}{Tota\ injuries}](https://tex.z-dn.net/?f=Mortaility%5C%20rate%3D%20%5Cdfrac%7BDeaths%5C%20due%20%5C%20to%5C%20injury%7D%7BTota%5C%20injuries%7D)
Then, the proportional mortality ratio (%) due to roller-skating was
=![\dfrac{90}{1800}\times100\%](https://tex.z-dn.net/?f=%5Cdfrac%7B90%7D%7B1800%7D%5Ctimes100%5C%25)
= 5%
Hence, the correct answer is c.![\dfrac{90}{1800}\times100\%](https://tex.z-dn.net/?f=%5Cdfrac%7B90%7D%7B1800%7D%5Ctimes100%5C%25)