Answer:
Step-by-step explanation:
To prove: The sum of a rational number and an irrational number is an irrational number.
Proof: Assume that a + b = x and that x is rational.
Then b = x – a = x + (–a).
Now, x + (–a) is rational because addition of two rational numbers is rational (Additivity property).
However, it was stated that b is an irrational number. This is a contradiction.
Therefore, the assumption that x is rational in the equation a + b = x must be incorrect, and x should be an irrational number.
Hence, the sum of a rational number and an irrational number is irrational.
Answer:
13 it is very easy
Step-by-step explanation:
In 1981<span>, about $1.1 </span>million was lost due to fires. in 1988, the loss<span> was about $9.6 million - 950063. ... Brainly has millions of high quality answers, </span>all<span> of them carefully moderated by our ... Let's </span>find<span> out, how many </span>percent<span> did it increased. => </span>9.6 million<span> - </span>1.1 million<span> = 8 .5 millions , this amount was the</span>difference<span> => 8.5 million ...</span>
Step-by-step explanation:
perimeter is 4x+6 +20x-8=20x-2
area is 20x^2+22x-12
The weight of the second one will be 4 tons
1 3/5=1.6
2 1/2=2.5
2.5×1.6=4
