Answer:
He needs to check his work more, and stop asking middle schoolers to do his cooking math.
Step-by-step explanation:
Answer:
117.99
Step-by-step explanation:
First step is to find the discount
Discount = original price * discount rate
= 135 * 20%
= 135*.20
=27
Take the discount from the original price and that is the new price
new price = original price - discount
= 135-27
=108
Now we need to find the tax
tax = new price * tax rate
= 108 * 9.25%
= 108 * .0925
=9.99
The final price is the new price plus the tax
final price = new price + tax
= 108+9.99
=117.99
There are a bunch of ways to do it but a couple would be 4 tens and 9 ones, or 49 ones. I hope this was helpful.
The number is 290 because 2 is in the hundreds and 9 more in tens than ones place then has to be 0.
Answer:
f^-1(x) = (x/8)^(1/5) is a function
Step-by-step explanation:
The inverse of a function is the function reflected across the line y=x. This results in the coordinate points (x,y) of the function becoming (y,x) for the inverse function. Algebraically to find the inverse, switch the x and y locations and solve for y.
y = 8x^5
x = 8y^5
x/8 = y^5
(5)√(x/8) = y
This is a fifth root of (x/7) also written in exponents as y = (x/8)^(1/5).
This is a function. While it appears not to be a function because the middle portion over the origin appears vertical, it is a function because the middle portion over the origin is changing and graphing software shows it has no input with more than one output. Without graphing software you would rule it is not a function.
