Set is a sum of two intervals :(1,4) u [2,6]
In the first interval it is open on both sides so 1 and 4 don't belong to this interval, the second is closed so both 2 and 6 belong to interval and numbers between 2 and 6
We can write it as 1<x
summing both sets we have one set: (1,6]
so
a) represent our set
b) also represent because all numbers between 4-6 and 6 are in our set
c)also represent, all numbers are in main set
d)also represent
If we try to simplify the ratio or try to multiply both by any number, we will get the equivalent ratio
Like :
Divide ( simplify ) by 2
Or multiply by any number,
From the example, 2 / 3 and 8 / 12 are equivalent ratios to 4 / 6
OK. So I hiked 7 and 5/8 miles last month. (In my dreams !). Do you have a question to ask ?
P=32cm
A= 64cm^2
Step by Step
Formula(Perimeter): P=s+s+s+s
S=side P=perimeter
P=8*4
P=32
Formula(Area for Square): A=s^2
A=Area s=side
A=8^2
A=84