Hello,
Answer D
16x²y²-24xyz+9z² a perfect square trinomial
which
le square of the difference of 3z from 4xy.
Do both as equation it will make it easier for her
Answer:
468
Step-by-step explanation:
=13[42-6]
=13 (36)
=13×36
=468
3 < 3x+6
-3<3x
-1<x
3x+6<24
3x<18
x<6
-1<x<6 the book is right
A circular pool with a diameter of 18 ft will have a uniform
4 ft concrete walkway poured around it. If the concrete cost $4.25 a square
foot, how much will it cost for the concrete?
This can be solve be solving the area of walkway
Area of walkway is equal to = (pi)( 9 ft +4) ^2– (pi)(9ft)^2
= 276.46 sq ft
Cost = 276.46 sq ft * ($4.25 a square foot) = $1174.70
