Answer:
Step-by-step explanation:
Answer: root of 18
9+9=x^2
18=x^2
x = 3 root of 2 or root of 18
Answer:
the slope is 60
Step-by-step explanation:
the slope is the number multiplying the x value, or t in this case.
Step-by-step explanation:

from difference of two squares:

therefore:

factorise out ¾ :

Answer:1.56
Step-by-step explanation:
For constant of proportionality of k,
y=(1/k)*x
If y =9,
9=7/k
K=7/9=0.78
y=0.78x
y=0.78*2=1.56
When x