Answer:
Answer: 13.4 m
Step-by-step explanation:
For small angles, x, in radians,
tan(x) ≈ sin(x) = x
Use this to create an approximate diagram for the problem as shown in the figure below.
The actual deflected shape is parabolic, but it is approximated by an isosceles triangle with small equal angles.
The extend length is 3 km + 12 cm, which is
3000 + 0.12 = 3000.12 m
Half of the extended length is 1500.06 m
Let h+ the rise of the center of the rail above ground.
From the Pythagorean theorem, obtain
h² + 1500² = 1500.6²
h² = 1500.06² - 1500² = 180.004
h = 13.4 m, which is about 0.9% of the original length.
Read more on Brainly.com - brainly.com/question/5596356#readmore
Answer:
Convert fraction (ratio) 1 / 16 Answer: 6.25%
Answer:
Less than
Step-by-step explanation:
7.5 < 48.75
48.75 is a bigger number than 7.5
Therefore, 7.5 is less than it.
<span>The fundamental idea of
multiplying is <em>repeated addition</em>. For example:
By taking the number five and add it itself three times we have:
In contrast, let's take the number
three and add it itself five times, so:
.
Both 3 and 5 are called
factors that are numbers. We can multiply them to get another number. Multiplying can also be expressed like this:
So you have the factors:
You can even write any multiplication as the
product of factors. On the other hands, factoring shows that you can write any nth-degree polynomial as the product of linear factors, so:
To conclude the <em>relationship</em> between both concepts is the
product of factors.</span>
Distribute : 1/2x + 3 = 18
subtract the 3 from both sides: 1/2x= 15
divide: x= 30