Answer:
Is irrational
Step-by-step explanation:
Let
be a rational number, and
be an irrational number. If their sum were rational, say
, then we'd have

but
is the difference between two rational numbers, and thus a rational number. But it also equals
, which is irrational by hypothesis. Since we have a contradiction, we conclude that the sum of a rational and an irrational can't be rational.
Answer:
a=100 sq. cm.
Step-by-step explanation:
a= l×w
a=10×10
a=100
Answer:
C The system has no solution
Step-by-step explanation:
They are parallel lines so there is no solution :).
Answer:
5870
Step-by-step explanation:
587*10=5870