Answer:
The expression seems to be bugged.
Step-by-step explanation:
Based on how it says null, there is probably something wrong with the program you are using. You should contact your supervisor or teacher or whatever, it might have bugged.
Well 3 to the 5th power is 243 and 5 to the 3rd power is 125 and 243-125 is 118
9 15 *The denominator must be the same. 9 4 36
--- + ---- = --- × --- = ----
10 40 10 4 40
36 15 51 *Then simplify.
--- + --- = ----
40 40 40
51 11 * This the answer
--- = 1 ---
40 40
As I calculated the answer is the last option. If I made a mistake you can report me. I am not too sure.
648 in^3
Answer:
1. 
2. 
3. 
Step-by-step explanation:
1. 
I like to make it an improper fraction first.
Now take the LCM. The LCM is 20.
Now add them.
Make this into a mixed number.
That's your answer for number 1.
2. 
Do the same thing as the previous addition problem but subtract instead.
is your answer for number 2.
3. 
is your answer for number 3.
I hope this helps! Let me know if you need help or if I got anything wrong :)
