Answer:
$60 was the price of Zoe's dinner, before sales tax and tip.
Step-by-step explanation:
- Sales tax = 11% * original price = 0.11 * x= 0.11x
- Tips for dinner = 20% * original price = 0.20 * x = 0.2x
- 0.11x + 0.2x = 18.60
- 0.31x = 18.60
- x = 60
- $60 was the price of Zoe's dinner, before sales tax and tip.
f(x) given to us is e^(x)
Hence,
d/dx [f(x)^3] = 3 * [e^(x)]^2 * [e^(x)]'
= 3 * e^(2x) * e^(x)
= 3e^(3x)
which is the derivative of e^(3x and this is what we are finding in the answer.
Answer:
1/3
Step-by-step explanation:
4/12÷3/3 = 1/3 ÷ 1 = 1/3
