Answer:
Given f(x) = 5x, find each of the following:
f(3) = 15
f(-2) = -10
fo
f(-1) = -5
f(8) = 40
f(-4) = -16
Step-by-step explanation:
When you have a value of x, it shows up inside the parenthesis.
For example: f(3) means x = 3.
Once you know what x is, you just have to plug in it's value into the original function.
So f(x) = 5x where f(3) means (5*3) or 15.
I’m pretty sure it’s the second one
The exact value of the other root to the quadratic equation is 
<h3>How to express the solution?</h3>
One of the root is given as:
As a general rule, the solution to a quadratic equation is represented by:
This means that the actual root of the given root is:
Split the equation
and 
Hence, the exact value of the other root to the quadratic equation is
Read more about quadratic equations at:
brainly.com/question/8649555
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Answer:
the answer would be the first one 321 m^2
Step-by-step explanation:
m=2(wl+hl+hw)=2·(10·6+6·6+6·10)=312
