Answer:
1. Commutative Property of Addition
2. Distributive property
Step-by-step explanation:
Given
Required
Justify each step
From Line 1 to 2:
The property from Line 1 to 2 depicts 
;
i.e.
This is referred to as Commutative Property of Addition
From Line 2 to 3:
The property here depicts 
i.e.
This is referred to as Distributive property
Answer:
Step-by-step explanation:
x^2 + 2x + 1 = 17
x^2 + 2x = 17 - 1
x^2 + 2x = 16
x^2 + 2x + 1 = 16 + 1
(x + 1)(x + 1) = 17
(x + 1)^2 = 17
x + 1 = sqrt 17
x = -1 (+ - ) sqrt 17
x = -1 + sqrt 17 or x = -1 - sqrt 17 <===
Ok this is not as hard as it seems
(4.5 feet)^2 times the number of students (13)
20.25 x 13
263.25 is the correct answer
I hope it helps :<
The width of a room can be from around 15 cm to about 40 cm.
meaning 1 m
and about less than 1/6 of a km
Hope it helped!
200 cm is 2 m so 40m/2m = 20. Thus she will have 20 pieces
