+0  
 
0
134
1
avatar+3654 

Help#3

NotSoSmart  Mar 12, 2018
 #1
avatar+91141 
+1

3.  We have that

 

18 * [  r ]^2  = 8          divide both sides by 18 

 

 r^2  =  8/18  = 4/9

 

r^2  = 4/9

 

r = √[ 4/ 9]   = 2/3

 

So

 

The length of the second arc is

 

18 (2/3)  =  12 ft

 

 

4.  ​A little tricky, NSS

 

We have that

 

1250 * r^2  = 50     divide both sides by 1250

r^2  =  50/1250  = 1/25

r = √(1/25)  = 1/5

 

So.....the second term is

 

1250 (1/5)  =   250

 

 

 

cool cool cool

CPhill  Mar 12, 2018

11 Online Users

avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.