Ones place i think would be the awser
I think it is 15, just by looking at it
We have equation:
t=20x+31
x is number of years after 1997.
To calculate number of laptops in 2005:
x=2005-1997
x=8
t=20*8+31
t=160+31
t=191
In year 2005 school had 191 laptops.
Answer:
20
Step-by-step explanation:
The pythagorean theorem states that

So 
You would then do

Because a square root is the opposite of a square.

because 20 * 20 = 400
Answer:
Odd function
Step-by-step explanation:
The given function is 
We know that:
- The function is even if f(-x) = f(x)
- The function is odd if f(-x)=-f(x)
- If the function doesn't satisfy these two properties then it is neither odd nor even.
Hence, we substitute x = -x to find f(-x)

Since, f(-x)=-f(x). Hence, the function is odd.