Answer:
5(a-b)=3(a+b)
5a-5b=3a+3b
2a-2b=0
2a=2b
a=b
a:b=1
Step-by-step explanation:
Answer:

Step-by-step explanation:
You use the Pythagorean theorem since a triangle is formed.


36-4 =
x= 
perimeter = 20 +20 +24 = 64 feet
area = 12^2 + x^2 = 20^2
144 + x^2 = 400
x^2 = 256
x = sqrt(256) = 16 feet
area = 1/2 x 16 x 24 = 192 square feet
cost = 192 x $2 = $384
Answer:
11. f(x) =3x-5
put x = 4 as given in question
ie:
f(4)= 3(4)-5
=12-5
=7