The regression equation:
y = m x + b
m = ( 57 - 50 ) / ( 178 - 168 ) = 7 / 10 = 0.7
50 = 0.7 * 168 + b
50 = 117.6 + b
b = 50 - 117.6
b = - 67.6
y = 0.7 * x - 67.6The graph is in the attachment.
The weight of supermodel who is 171 cm tall:
y = 0.7 * 171 - 67.6 = 119.7 - 67.6 =
52.1 kg
112 = 4.5p +40
112-40 =4.5p
72= 4.5p
72/4.5 = p
p= 16
he will.have to sell 16 pairs to hit is daily goal
Step-by-step explanation:
H(x)=

If g(x) values =0, h(x) will be undefined.
So f(x)=0, h(x) will be undefined.
Zo find values of f(x) equal 0.
That is when x=2. So the answer to first solution is 2.
h(x) is negative when (-oo, -3) U (2,oo)
1.x×2+24=0
2x=0-24
2x=-24
x=-24/2
x=-12.
9.x×2-9x+3=0
2x-9x=0-3
-7x=-3
x=-3/-7
11.x×2+4x+13=0
2x+4x=0-13
6x=-13
x=-13/6
Hope it is correct and helps u.