The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4
At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5
-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5
This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
2(8-4)^2-5
16-32-5
-21
you can change the -10/2 to a -5 and it will be easier.
You can convert the fraction to a decimal form.
7/9 is .778
.778 is greater than .6
Answer:
-6n + 8
Step-by-step explanation:
-8n + 2n = -6n
11 - 3 = 8
Hope this helps :)
