X^2-12x+7=0 move constant to other side
x^2-12x=-7 add the square of half the linear coefficient to both sides...(12/2)^2=36
x^2-12x+36=29 now the left side is a perfect square...
(x-6)^2=29 so if
f(x)=(x-a)^2+b then
f(x)=(x-6)^2-29
So a=6
A=16500(1-0.0575)^5
A=16,500×(1−0.0575)^(5)
A=12,271.30
Answer:
b) 20 minutes
Step-by-step explanation:
Tom=0.5Mike
in 15 minutes, Tom will have done 1/2 of the lawn
in 15 minutes, Mike will have done 1/4 of the lawn
in 15 minutes, they will have done 3/4 of the lawn
15/3=5 minutes for 1/4 of the lawn to be done
5x4=20 minutes for the entire lawn
Equation for Liz:
L = 8n
Equation for Andy:
A = 8n + 35
Step-by-step explanation:
Let the no. of necklace be 'n'
Cost per necklace= $8
Equation for Liz:
L = 8n
Because Liz sells only necklace for $8 each
Equation for Andy:
A = 8n + 35
Because Andy sells each necklace for $8 and she sold the bracelets for $35
