This is the concept of algebra:
y=^3sqrt(x-5) can be written as:
y=(x-5)^(1/3)
Given that y=0 at the point x=5, that is:
when x=5 then
y=(5-5)^(1/3)
y=0^(1/3)
y=0
from the above we conclude that the domain is:
{x∈ R: x≥5}
That means that the domain is all real numbers greater than or equal to 5.
Answer:
C) A =
Step-by-step explanation:
First, read through what the question is asking.
Now, read it again, but slowly and take in everything it is saying (Don't read into it too slowly, or else you will over-complicate the problem and get frustrated - told from experience :) )
Alright, 4 less than 3 times the width. So, lets rearrange this and give width a variable (w).
So, the length is equal to:
l = 3w - 4
and the width is equal to:
w = w
The area of a rectangle is A = l * w
Let's plug in the values.
A = (3w - 4) * w
Now, simplify:
A =
A = is your final answer.
I hope this helps!
20 times 10 is 200 divided by 2 is 100. so 100 cm squared