Answer:
square pyramid
Step-by-step explanation:
If 2 out of 20 pieces of corn werer otten then 13 corns out of 260 is rotten
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:
x^4- x^3- 4x^2-3
Step-by-step explanation:
Given
f(x)= x^4- x^2+9
And
g(x)= x^(3 )+ 3x^2+12
We have to find
(f-g)(x)= ?
The operations on functions are as easy as the operations on numbers or polynomials.
We have to subtract the functions to find the above mentioned operation.
=(f-g)(x)=f(x)-g(x)
(f-g)(x)=[x^4- x^2+9]-[x^(3 )+ 3x^2+12]
The minus will change the signs of function g.
= x^4- x^2+9- x^(3 )- 3x^2-12
= x^4- x^3- x^2- 3x^2+9-12
=x^4- x^3- 4x^2-3