The percentage of discount of the set is 20.21%.
Step-by-step explanation:
Given,
The original price of the set = $193
After discount the price of the set = $160
The amount of discount = $193-$160 = $ 39
To find the percentage of discount.
Formula
The discount price = [(The amount of discount)÷ the original price]×100%
Now,
The percentage of discount is
= ×100% = 20.21% (approx)
Hence,
The percentage of discount is 20.21%.
Step-by-step explanation:
let's simply do the multiplications and then compare with the original.
(x-m)² + n
right ?
or is it
let's go for the first.
x² - 2mx + m² + n = x² - 3x
-2mx + m² + n = -3x
fun there we see two things :
-2m = -3
m = 3/2
and
m² + n = 0
(3/2)² = -n
9/4 = -n
n = -9/4
so our transformed expression looks like
(x - 3/2)² - 9/4
Answer:
combined variation
Step-by-step explanation:
we have
we know that
a)<u> in the interval </u>----> (0,∞)
If the value of x increase the value of y increase
so
Is a direct variation
b) <u>in the interval -</u>---> (-∞,0)
If the value of x increase the value of y decrease
so
Is a inverse variation
therefore
Is a combined variation