Side 1 + Side 2 + Side 3 = Perimeter
First isosceles triangle: 2a + 2a + b = 4a + b
Second isosceles triangle: b/2 + b/2 + 4a = 4a + b
Answer:
This college library would hold approximately ![6*10^{5}/tex] books.Step-by-step explanation:Having books on both sides, and each book being 25 centimeters (there is 100 cm in a meter, so 25 cm=0.25 m) deep, shelves must be around 50 cm (or 0.5 m) wide.If corridors must be 1,5 m wide, every two linear meters (perpendicular to corridors and shelves) of floor space there is 1.5 m of corridors and 0.5 m of shelves and that sequence repeats itself, i.e. there is 75% (1.5 of every 2 meters) of space occupied by corridors and 25% (0.5 of every 2 meters) occupied by shelves, that is:[tex]Floor space_{shelves}=Total floor space*proportion of shelves=3500m^{2} *0.25=875m^{2}](https://tex.z-dn.net/?f=6%2A10%5E%7B5%7D%2Ftex%5D%20books.%3C%2Fp%3E%3Cp%3EStep-by-step%20explanation%3A%3C%2Fp%3E%3Cp%3EHaving%20books%20on%20both%20sides%2C%20and%20each%20book%20being%2025%20centimeters%20%28there%20is%20100%20cm%20in%20a%20meter%2C%20so%2025%20cm%3D0.25%20m%29%20deep%2C%20shelves%20must%20be%20around%2050%20cm%20%28or%200.5%20m%29%20wide.%3C%2Fp%3E%3Cp%3EIf%20corridors%20must%20be%201%2C5%20m%20wide%2C%20every%20two%20linear%20meters%20%28perpendicular%20to%20corridors%20and%20shelves%29%20of%20floor%20space%20there%20is%201.5%20m%20of%20corridors%20and%200.5%20m%20of%20shelves%20and%20that%20sequence%20repeats%20itself%2C%20i.e.%20there%20is%2075%25%20%281.5%20of%20every%202%20meters%29%20of%20space%20occupied%20by%20corridors%20and%2025%25%20%280.5%20of%20every%202%20meters%29%20occupied%20by%20shelves%2C%20that%20is%3A%3C%2Fp%3E%3Cp%3E%5Btex%5DFloor%20space_%7Bshelves%7D%3DTotal%20floor%20space%2Aproportion%20of%20shelves%3D3500m%5E%7B2%7D%20%2A0.25%3D875m%5E%7B2%7D)
Knowing that every square meter of floor space occupied by shelves is in reality eight (because of being 8 shelves high) square meters of shelve space where to put books and that the average area of a book is
![Area occupied=depth*width=0.25m*0.05m=0,0125m^{2} per book](https://tex.z-dn.net/?f=Area%20occupied%3Ddepth%2Awidth%3D0.25m%2A0.05m%3D0%2C0125m%5E%7B2%7D%20per%20book)
Having all the necessary data, we estimate how many books would this college library hold:
![Books=\frac{Shelve space}{area_{book} } =\frac{875m^{2}*8 }{0.0125\frac{m^{2} }{book} } =560000 books](https://tex.z-dn.net/?f=Books%3D%5Cfrac%7BShelve%20space%7D%7Barea_%7Bbook%7D%20%7D%20%3D%5Cfrac%7B875m%5E%7B2%7D%2A8%20%7D%7B0.0125%5Cfrac%7Bm%5E%7B2%7D%20%7D%7Bbook%7D%20%7D%20%3D560000%20books)
As it is an estimate, we round it up to the nearest hundred-thousand, i.e., approximately [tex]6*10^{5}/tex] books can be shelved on this library
Answer:Linear pair and X is 23
Step-by-step explanation:
<h3>
<u>Explanation</u></h3>
- How to see if a shown graph is function or not?
If we want to check that a graph is function or not, we have a way to check by doing these steps.
- Draw a vertical line, make sure that a line has to pass through or intercept a graph.
- See if a line intercepts a graph more than once.
If a line intercepts a graph only one point, a graph is indeed a function. Otherwise, not a function but a relation instead. That includes if a line intercepts more than a point which doesn't make a graph a function.
From the graph, if we follow these steps, we will see that a line will only pass or intercept the graph only one point. Hence, the graph is indeed a function. The following graph that is shown is called "Parabola" for a < 0.
<h3>
<u>Answer</u></h3>
The graph is a function.