Each of A, C, and D are rational, so presumably B is the answer here.
A is rational, since

, so

.
C is also rational. If

, then

. This would mean

, and so

.
D is rational by a similar argument. If

, then

. So,

, which means

.
Answer:
x = 5
Step-by-step explanation:
5x5 = 25
25- 10 = 15
15 = 15
Answer:
b
Step-by-step explanation:
y is x + half of x so 12 + 6 is 18
Answer: The answer is m=1.5
Step-by-step explanation: Divide both sides by 0.5 and you will find m.
Answer:
The equation of the line would be y = 4/9x
Step-by-step explanation:
In order to find the equation, we first need to find the slope. We can do this by using the slope equation with the points.
m(slope) = (y2 - y1)/(x2 - x1)
m = (9 - 0)/(4 - 0)
m = 9/4
Now that we have this, we can use point-slope form along with one of the points to get the equation.
y - y1 = m(x -x1)
y - 0 = 4/9(x - 0)
y = 4/9x