Answer:
.
Step-by-step explanation:
Answer:
The rounded number is 10,000.
Step-by-step explanation:
Rounding means making a number simpler but keeping its value close to what it was.
The digit in the ten thousands place is 1.
The digit to its right is 2, so the digit in the ten thousands place stays the same.
Leave it the same if the next digit is less than 5, this is called rounding down. And increase it by 1 if the next digit is 5 or more, this is called rounding up
the sum of the lengths of any two sides of a triangle is always greater than the length of the third side
T=the third side
12+18>T
12+T>18
18+T>12
the first equation says that T<30
the second equation says that T>6
putting these together...
6<T<30
