IT IS THE THIRD ONE:
3+8.486
because I find it like that
5.75, 5.751, 59/10, 5 10/11 pls mark brainliest if it helped
2x²
quadratic and monomial
- 2
I'm guessing linear since x = - 2 and y = - 2 are both lines and it's a constant
3x - 9
linear and binomial
- 3x² - 6x + 9
quadratic and trinomial
In order to solve this question we first have to break down the terms.
Sum = Adding
Times = Multiplying.
The question states "3 times the sum of a number n and 12 is 45". In written form, it would be the following:
3(12+n) = 45
To solve this you first divide both sides by three and you'd be left with the following:
(12+n) = 15.
Then subtract 12 from both sides. Leaving you with:
n = 3
Answer:
The height of building to the nearest foot is h = 36 foot
Step-by-step explanation:
We have given,
Length of ladder leaning against a building, l = 45 foot
Bottom length between ladder and the building , b = 27
Now, we need to find the height of building to the nearest foot.
Let the height of building be h.
Using Pythagoras theorem,
![l^{2} = b^{2} +h^{2}](https://tex.z-dn.net/?f=l%5E%7B2%7D%20%3D%20b%5E%7B2%7D%20%2Bh%5E%7B2%7D)
Here, l = 45 , b = 27 and h =?
So,
![45^{2} = 27^{2} +h^{2}](https://tex.z-dn.net/?f=45%5E%7B2%7D%20%3D%2027%5E%7B2%7D%20%2Bh%5E%7B2%7D)
h² = 45² - 27²
h = √(45² - 27²)
h = 36
The height of building to the nearest foot is h = 36 foot