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)
Let's solve for x.
−b3+3b2+8−(x−5b2−9)=5b3+8b2+17
Step 1: Add b^3 to both sides.
−b3+8b2−x+17+b3=5b3+8b2+17+b3
8b2−x+17=6b3+8b2+17
Step 2: Add -8b^2 to both sides.
8b2−x+17+−8b2=6b3+8b2+17+−8b2
−x+17=6b3+17
Step 3: Add -17 to both sides.
−x+17+−17=6b3+17+−17
−x=6b3
Step 4: Divide both sides by -1.
−x
−1
=
6b3
−1
x=−6b3
Answer:
x=−6b3
1. Equilateral
2. Isosceles<span />
8/x -5/x=4
multiple x on both side
8-5=4x
3=4x
x=3/4