We will expand the factored form of (x − 9)(x − 1) into the same form as x² − 10x + 9 to show they are equal.
Distribute and multipy out:
(x − 9)(x − 1)
x * x = x²
x * -1 = -x
x * -9 = -9x
-9 * -1 = 9
Add together:
x² + -x + -9x + 9
x² − 10x + 9
Use the Reflexive property:
x² − 10x + 9 = x² − 10x + 9 ✓
800
There are 52 weeks in the year, so since 2 weeks are taken off, they only work 50 weekends a year, which is a total of 100 days. 100 days x 8 hours is 800 hours total
Each sandwich has 8 pieces and the guest only get 1 piece
4times8=32
32 people ate from the sandwich
Answer:
f'(x)=0
is the final answer
Step-by-step explanation:
1.Take the derivative
2.Rewrite the fraction
3.(answer)
So we start with the $60 untouched.
Then we add the tax which is $60•0.07= 4.20 that is the tax
Then add the tax to the total $60 + $4.20= $64.20
Next we must add the tip so $60•0.15= 9.
Then $64.20 + $9.00 = $73.20
Total cost of meal $73.20
Any questions? :)
