Answer:
The linear equation is y = 6 x + 9
The graph is attached down
Step-by-step explanation:
The given information:
The cost of 1st km is 9 Rs
The cost of every kilometer after the first is 6 Rs
x represents the number of km
y represents the total cost of x km
The form of the linear equation is
y = m x + b, where
- m is the slope of the line (rate of change)
- b is the y-intercept (initial value)
From the given information above
m = 6 Rs/km
b = 9 Rs
Substitute them in the form of the equation
y = 6 x + 9
The graph:
Step-by-step explanation:
a-2=3+6a/3
By cross multiply
3(a-2)=3+6a
3a-6=3+6a
-6-3=6a-3a
-9=3a
a=-3
Answer:
14.67
Step-by-step explanation:
you added a dot and made this 14.6.7
Answer:
Yes, the set of numbers create a Pythagorean triple
Step-by-step explanation:
we know that
If a set of numbers create a Pythagorean triple, then the set of numbers must satisfy the Pythagorean Theorem
![c^2=a^2+b^2](https://tex.z-dn.net/?f=c%5E2%3Da%5E2%2Bb%5E2)
where
c is the greater side
a and b are the legs (perpendicular sides)
we have
![c=7.5\\a=2.1\\b=7.2](https://tex.z-dn.net/?f=c%3D7.5%5C%5Ca%3D2.1%5C%5Cb%3D7.2)
substitute
![7.5^2=2.1^2+7.2^2](https://tex.z-dn.net/?f=7.5%5E2%3D2.1%5E2%2B7.2%5E2)
![56.25=4.41+51.84](https://tex.z-dn.net/?f=56.25%3D4.41%2B51.84)
----> is true
therefore
Yes, the set of numbers create a Pythagorean triple