Answer:
1.58 is rational
Step-by-step explanation:
"hope this helps"
First, distribute the 2 on the right side of the equation so you get 4a-26. Then add 26 to both sides so you have 7a+21 =4a. Subtract 7a and get 21 = -3a. Divide by -3 and your final answer is -7.
Answer:
1: 3\sqrt2 - \sqrt14
2: \sqrt21 - 2\sqrt(7)
3: 4\sqrt3 - \sqrt15
4: 2\sqrt5 - \sqrt10
5: -3 + 3\sqrt5
I already gave you these answers man
Step-by-step explanation:
Answer:
pi + -pi = 0
Step-by-step explanation:
We need to have irrational numbers that we are adding and end up with a rational number. This means that it is not closed under addition
pi is an irrational number
0 is a rational number
pi + -pi = 0
irrational + irrational = rational
