Answer:
40 cm
Step-by-step explanation:
Perimeter of a square = 4a
=4 ( 10 )
=40cm
Have a nice day!
Answer:
2x+40 is what it simplifies down to
Step-by-step explanation:
Move constant to the right-hand side and change its sign
2x^2 + 8 = -2 + 7
-2 + 7 = 5
Divide both sides of the equation by
x^2 + 4x = 5/2
Add (4/2^2) to both sides of the equation
x^2 + 4x + (4/2)^2 = 5/2 + (4/2)^2
factor the expression
(x + 4/2)^2 = 13/2
reduce the fraction by 2
(x + 2)^2 = 13/2
now solve equation for x
Answer:
See attached picture
Step-by-step explanation:
The graph of
is shown below. To find the graph, plug in a few key x values including -2, 1, and 2 then connect.


