Solution:
A number is said to be irrational , if the decimal expansion of a number is non terminating non repeating.
For example , 2.01001000100001......., √3,∛5,....
Now coming to Options
(A) 4 + 2.5
4 as well as 2.5 is rational . So sum of two rational is a rational.
(B) 3 × 
Since 3 is rational , but is irrational. So product of rational and irrational should be irrational.
Because = 0.333333.......(non terminating non repeating)
But numerator which is 3 and denominator which is 3 cancels out and result is 1 which is rational number.
(C) 2 × (real number=a )raised to power of 7
=
= 
has denominator of the form other than 
, then it is irrational number.
So, is rational or irrational depends on the value of a.
(D) 1.25 + 4.25
Both 1.25 as well as 4.25 are rational. So their sum is rational.
So, option (C) may be irrational , it totally depends on the value of a.
Answer:
Not sure if this works but here you go
Step-by-step explanation:
Junko spends 27 dollars on bananas the tax is 3 dollars and each banana is 8 dollars how many bananas did junko buy
Answer:
C) (-3,1) is the solution
Answer:
Step-by-step explanation:
m∠2 ≅ m∠7 [Alternate exterior angles]
m∠7 + m∠8 = 180° [Linear pair theorem]
m∠2 + m∠8 = 180° [Substitution property]
∠2 and ∠8 are supplementary [Definition of supplementary angles]
The answer is A
the answer is A
700
what i did was i divided 7000 by 10 and i got 700. then to check, i multiplied 700 by 10 and got 7000
