Answer:
is irrational
Step-by-step explanation:
Let us assume that is rational. Thus, it can be expressed in the form of fraction 
, where x and y are co-prime to each other.
=
Squaring both sides,
Now, it is clear that x is an even number. So, let us substitute x = 2u
Thus,
Thus, 
is even, which follows the fact that y is also an even number. But this is a contradiction as x and y have a common factor that is 2 but we assumed that the fraction was in lowest form.
Hence, is not a rational number. But is a an irrational number.
Answer: 2 and 1/10
Step-by-step explanation: To subtract mixed numbers, we first subtract the fractions.
Notice that 1/2 and 2/5 are unlike fractions so we need a common denominator which in this case is 10. <em>If you need a review on how to find the common denominator for these fractions, let me know in the comments below and I will be more than happy to explain</em>.
To get a 10 in the denominator of 1/2, we multiply the numerator and the denominator by 5 to get 5/10. To get a 10 in the denominator of 2/5, we multiply the numerator and denominator by 2 to get 4/10.
So we have 4 and 5/10 - 2 and 4/10.
Subtracting the fractions, 5/10 - 4/10 is 1/10 and subtracting the whole numbers, 4 - 2 is 2. So 4 and 1/2 - 2 and 2/5 is 2 and 1/10.
Answer:
three out of the eight homes have red doors. so 3 homes have red doors
Step-by-step explanation:
Answer:it will it take him 6 minutes to cook the rest.
Step-by-step explanation:
The chef needs to cook a total of 9 potatoes. He has already cooked 7 potatoes. That means that the number of uncooked potatoes left is total number of potatoes - number of cooked potatoes. It becomes
9-7 = 2 potatoes
If each potato takes 3 minutes to cook, this means that 2 potatoes will take 3 minutes × 2 j = 6 minutes
Since there are only 2 potatoes left uncooked, it will it take him 6 minutes to cook the rest.
Answer:
900000000
Step-by-step explanation:
Area=400×500
=60000m²
Since
1m² = 15000
60000m² = x
x = 60000×15000
x = 900000000
