20 points and Brainliest !
2 answers:
You might be interested in
Answer:
ŷ = -1.618X + 215.636
191
Step-by-step explanation:
From the graph:
The data below could be obtained to produce the best fit line :
Week, x :
0
1
2
3
4
5
6
7
8
9
10
Weight :
216
214
213
210
210
207
206
202
203
202
200
Using a linear regression calculator. The best fit line obtained is :
ŷ = -1.618X + 215.636 ; which shows decrease in weight has the number of weeks grow.
Carters weight 15 Weeks into his diet :
X = 15
ŷ = -1.618(15) + 215.636
= 191.366
= 191 (nearest whole number)
Answer:
The sample size to obtain the desired margin of error is 160.
Step-by-step explanation:
The Margin of Error is given as
Rearranging this equation in terms of n gives
Now the Margin of Error is reduced by 2 so the new M_2 is given as M/2 so the value of n_2 is calculated as
As n is given as 40 so the new sample size is given as
So the sample size to obtain the desired margin of error is 160.
A) The car is moving 75 degrees to northeast because if the car Is going east and now going northeast. Clearly it's 75 degrees.
B) the angle would be 75 degrees because the angle because of the vertical angle ( vertical looks like a bow tie and the picture) and vertical angles are always the same.
C) The angle created by the turning is 105 degrees, remember the horizontal lines are 180 degrees and the other side if 3rd street would be 75 degrees, but subtract 75 from 180 you would get 105 degrees.
B) the angle would be 75 degrees because the angle because of the vertical angle ( vertical looks like a bow tie and the picture) and vertical angles are always the same.
C) The angle created by the turning is 105 degrees, remember the horizontal lines are 180 degrees and the other side if 3rd street would be 75 degrees, but subtract 75 from 180 you would get 105 degrees.