Answer:
y = 1/3x+6
Step-by-step explanation:
Step 1
- Rewrite f(x) as y
f(x) = 3x-18 => y = 3x-18
Step 2
- Swap x and y
y = 3x-18 => x = 3y-18
Step 3
- Slove for y (By that it means isolate y)
x = 3y-18 (+18 both sides)
x+18 = 3y (Then divide both sides by 3)
1/3x+6 = y
Final Answer:
y = 1/3x+6
Answer:
What do we need to find??
Step-by-step explanation:
Answer:
2.3 cm
Step-by-step explanation:
![\textsf{Area of a trapezium}=\dfrac{1}{2}(a+b)h \quad \textsf{(where a and b are the bases and h is the height)}](https://tex.z-dn.net/?f=%5Ctextsf%7BArea%20of%20a%20trapezium%7D%3D%5Cdfrac%7B1%7D%7B2%7D%28a%2Bb%29h%20%5Cquad%20%5Ctextsf%7B%28where%20a%20and%20b%20are%20the%20bases%20and%20h%20is%20the%20height%29%7D)
Given:
- base a = 3.8 cm
- base b = 6.1 cm
- h = x cm
Substituting the given values into the formula and solving for x:
![\implies \dfrac{1}{2}(3.8 + 6.1)x=11.385](https://tex.z-dn.net/?f=%5Cimplies%20%5Cdfrac%7B1%7D%7B2%7D%283.8%20%2B%206.1%29x%3D11.385)
![\implies \dfrac{1}{2}(9.9)x=11.385](https://tex.z-dn.net/?f=%5Cimplies%20%5Cdfrac%7B1%7D%7B2%7D%289.9%29x%3D11.385)
![\implies 9.9x=22.77](https://tex.z-dn.net/?f=%5Cimplies%209.9x%3D22.77)
![\implies x=2.3](https://tex.z-dn.net/?f=%5Cimplies%20x%3D2.3)
Didn’t get it. What’s this??!