Answer:
The length of the bridge is 126.492 feet.
Step-by-step explanation:
Let
, where
is the position from the middle of the bridge, measured in feet, and
is the height of the bridge at a location of x feet, measured in feet. In this case, the length of the bridge is represented by the distance between the x-intercepts of the parabola, which we now find by factorization:
(Eq. 1)
![x^{2} = \frac{40}{0.01}](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%3D%20%5Cfrac%7B40%7D%7B0.01%7D)
![x =\pm \sqrt{\frac{40}{0.01} }](https://tex.z-dn.net/?f=x%20%3D%5Cpm%20%5Csqrt%7B%5Cfrac%7B40%7D%7B0.01%7D%20%7D)
![x = \pm 63.246\,ft](https://tex.z-dn.net/?f=x%20%3D%20%5Cpm%2063.246%5C%2Cft)
Given that the parabola is symmetrical with respect to y-axis, then the length is two times the magnitude of the value found above, that is:
![l = 2\cdot (63.246\,ft)](https://tex.z-dn.net/?f=l%20%3D%202%5Ccdot%20%2863.246%5C%2Cft%29)
![l = 126.492\,ft](https://tex.z-dn.net/?f=l%20%3D%20126.492%5C%2Cft)
The length of the bridge is 126.492 feet.
Answer:
345,456
Step-by-step explanation:
The value of 3 in 135,864 is 30,000.
We want to write a number that is ten times 30,000.
We could write any other number in which the value of 3 is 300,000.
There are infinitely many numbers that we can write.
Some examples are:
345,456
1,315,445
5,354,456
and so on and so forth.
? =2
proof;
•(28/100 = 7/25)
2/10 + 8/100 = 7/25
Okay, so first I want to turn 80% into a decimal.
80%= .8
Multiply .8 by 21.60
.8*21.60= 17.28
Add 17.28 to the discounted price.
21.60+17.28= 38.88
38.88 is the original price. <span />
Answer
No right answer
Step-by-step explanation:
The answer i got was not in the answers...
It would be $31,200
6% of 24,000 is 1440
if you multiply that by 5 it would give you 7200
if you add the 24,000 and 7200 together it would be $31,200