Its very easy
455 means 5*7*13
now divide (5*7*13) by 7
you will easily get 5*13=65
The volume of the pyramid is 40
.
Explanation
The volume of the pyramid is determined by its base area and the height.
Given that
The base of the pyramid given in the problem is a rectangle
length of the base= 5 cm
breadth of the base=4 cm
base area A= length*breadth(area of rectangle)
=4*5=20 
height of the pyramid h=6 cm
volume of the pyramid=1/3 Ah
=1/3 *20*6=40
It’s the 2nd one have a nice day
Step-by-step explanation:
Our roots are 3, and i so our roots form
will be

Since i is one root, it conjugate, must be the other.
so we have

Simplify


So the function is
