Answer:
$32
Step-by-step explanation:
First, find 20% of 40.
20% as a decimal is 0.20 (20/100)
0.20 x 40 = 8
Now, subtract 8 from the original price.
40 - 8 = 32
Answer:
Step-by-step explanation:
Given
Required
Represent the diagonal as a function
Using Pythagoras theorem, the diagonal is:
Substitute x for Side
Take the square root of both sides
Split
Express as a function.
Y = sqrt(x - 5) - 1
for the square root to be a real number x must be >= 5
The domain is x>= 5 , or in interval notation [5, ∞)