Answer:
Step-by-step explanation:
C looks right
as shown in the graphs :P
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.
........................................ 40 ......................................
Let me help you with this :)
John = x
Mike = y
x = 4 + 3y (4 more than 3 times)
x + y = 20 (we put the x above into this equation)
4 + 3y + y = 20
4y = 16 (we transfers the 4 on the left side to the right side and subtract it from the 20)
y = 4 (the answer is 4)
we use this for the equation:
x = 4 +3*4
x = 16
John is 16 years old and Mike is 4 years old :)
Answer:
88m of fencing
Step-by-step explanation:
the cicumference of the garden is what we are looking out for,
and with the raduis .ie.14m
C=2πr
C=2•22/7•14
C=88m
