Answer: 3
Step-by-step explanation: [ 3.6 ] represents the greatest integer function [ x ]
If x is an integer use that integer
If x is not an integer use the next smaller integer
[ 3.6 ] is not an integer, hence
[ 3.6 ] = 3
The area of a rectangle is equal to length times width.
Mathematically,
.
We can arbitrarily choose one expression for length and one for width; the result is the same.
Let's say that
cm is the length, and
cm is the width.
We simply write
.
I am assuming you did not mean to write
for the first dimension.
Answer:
(x-15) × (x+15)
Step-by-step explanation:
x^2 - 225 --> x^2 - 15^2 --> (x-15) × (x+15)
90. Something about being tricked to think 0, I guess.
You can try 4x^3-12
I got the 3 from x^2 and the x next to the 4. Even though you don’t see it, there’s an invisible one there. So you add them, and therefore it would be x^3. :)