In this question , to find the total surface area , we have to find the area of all faces and add them .
And here the base is a hexagon. THe formula of area of hexagon is
And in the given diagram, side length , a=4cm , so area is
Now we need to find the area of triangle.
We have 6 triangular faces. And for area of triangle, we need the slant edge, and for that we use pythagorean formula
Now we use the formula of area of triangle which is half times the product of base times height. And since there are 6 triangles, so we have to multiply by 6 too.
So total surface area is
The quadratic formula works for every quadratic equation, with no exception. Other methods are often tedious and time-consuming, such as completing the square, and others don't work in all situations, such as factoring. Being universal, the quadratic equation becomes an essential tool to solve any quadratic function with little to no thinking, due to the simple solving nature of it.
B. 12
5x = 62-2
5x= 60
x = 60/5
x = 12
Answer:
Well rewriting literal equations can help you understand better and you'll have more room to write the answer and figure it out.
Step-by-step explanation:
I'd use synthetic div. here, with 2 as my divisor:
________________
2 / 1 -11 18
2 -18
----------------------------
1 -9 0
Note that the coefficients of the missing factor are given here and are 1 and -9. Thus, (x-9) is the missing factor.
