We will verify each options
option-A:
we can factor it
so, this is not irrational.........Answer
option-B:
Since, it can not be factored
so, this is irrational.........................Answer
option-C:
we can factor it
so, this is not irrational.........Answer
option-D:
we can factor it
so, this is not irrational.........Answer
Substitute x=9 and y=-2 into equation,
Left hand side=-2
Right hand side=1/3(9)+4= 3+4=7
Because LHS doesn’t = with RHS, the point (9,-2) doesn’t satisfy with the equation
Therefore the point doesn’t go through y=1/3x +4.
Step-by-step explanation:
To divide by a fraction, multiply by its reciprocal.
1) (m² / 9) / (n² / m)
(m² / 9) × (m / n²)
m³ / (9n²)
2) (4 / y) / (2 / (yx))
(4 / y) × (yx / 2)
2x
3) (x² / y) / (1 / y)
(x² / y) × (y / 1)
x²
4) (3 / b) / (9 / a²)
(3 / b) × (a² / 9)
a² / (3b)
5) (x² / 16) / (16 / y²)
(x² / 16) × (y² / 16)
x²y² / 256
Take the 2 times you are given and add them to x and divide the entire left side of the equation by 3:
54.3+56.1+x/3=55
54.3+56.1+x=165
x=54.6
The 3rd lap took him 54.6 seconds to run
