Answer:
Always
Step-by-step explanation:
If the irrational parts of the numbers have zero sum, the sum is rational. If not, the sum is irrational. It is true, for example, for 2 7, 3. It is false, for example, for3+2 5,−2 5 .
Answer:
BC = 7
Step-by-step explanation:
AB + BC = AC
39 + BC = 46
BC = 46 - 39
BC = 7
Answer:
The range for Problem 18 is

The range for problem 19 is

Step-by-step explanation:
To find the range you subtract the smallest value from the largest value. In problem 18 the largest value was 17.6 and the smallest was 1.5.

In problem 19 the largest value was 181 and the smallest was 14

Answer:
4 dollars 80 cents
Step-by-step explanation:
if annual is 12%, find monthly, 12/12=1
monthly rate is 1%
convert to decimal
0.01
480*0.01
4.8