Answer:
46m
Step-by-step explanation:
2(18)+2(5)=46
Like terms" are terms whose variables (and their exponents such as the 2 in x2) are the same. In other words, terms that are "like" each other. Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.
<h2>
Answer</h2>
The equation is y = 2x - 12
<h2>
Explanation</h2>
Equation in slope intercept form is
![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
Where,
m = slope
b = y-intercept
Putting the value of slope in this equation:
From this we can solve the equation for b
![b = y - 2x](https://tex.z-dn.net/?f=b%20%3D%20y%20-%202x)
![b = -2 - 2(5)](https://tex.z-dn.net/?f=b%20%3D%20-2%20-%202%285%29)
![b = -12](https://tex.z-dn.net/?f=b%20%3D%20-12)
Now, the equation of y-intercept becomes
![y = 2x - 12](https://tex.z-dn.net/?f=y%20%3D%202x%20-%2012)
So the question tells to express the expression in your problem where N0 is N-naught and the symbol represent the lower case Greek letter lambda. So the best answer or expression would be that the lambda is the wavelength of the expression. I hope you are satisfied with my answer
Answer:
3ft
Step-by-step explanation:
We are given that
Height of lamp, h=12ft
Height of shadow, l=6ft
Height of shadow of hydrant, l'=1.5ft
Let height of hydrant=h'
We have to find the height of fire hydrant.
All right triangles are similar
When two triangles are similar then, the ratio of their corresponding sides are equal.
Using the property
![\frac{h}{h'}=\frac{l}{l'}](https://tex.z-dn.net/?f=%5Cfrac%7Bh%7D%7Bh%27%7D%3D%5Cfrac%7Bl%7D%7Bl%27%7D)
![\frac{12}{h'}=\frac{6}{1.5}](https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7Bh%27%7D%3D%5Cfrac%7B6%7D%7B1.5%7D)
![h'=\frac{12\times 1.5}{6}](https://tex.z-dn.net/?f=h%27%3D%5Cfrac%7B12%5Ctimes%201.5%7D%7B6%7D)
ft
Hence, the height of fire hydrant=3 ft