A statistic and a parameter are very similar. They are both descriptions of groups, like “50% of dog owners prefer X Brand dog food.” The difference between a statistic and a parameter is that statistics describe a sample. A parameter describes an entire population.
<em>Hope this helps :)</em>
We Cannot conclude that triangles DEF and LNM are similar if DF = 8 and LM = 4.
<u>Solution:</u>
Given that for two triangle DEF and LNM, DE = 8 and LM = 4.
To say that two triangles are similar the provided information is not complete.
Two triangles DEF and LNM , will be similar if there corresponding sides are in ratio which means
But we have only information of
But do not have any information regarding two remaining ratios that are
Hence cannot conclude that triangles DEF and LNM similar if DF = 8 and LM = 4
40. m∠2=148° m∠4=148°
41. ∠2 and ∠5
42. ∠1 and ∠2
43. ∠3 and ∠5
Sorry, I don't know how to do the rest, but I hope this helps!
draw a market and place the point (4 ; 1)
then you go on your right : 4 units
and go down : 3 units
you place a second point
and now you can graph the line