Example 9 In July of 2018 you used 800 kilowatt-hours of energy for electricity. How much total electrical energy was used in Joules? What was your average power in watts? Assume that your power supplier generates electricity by burning oil. Note that 1 liter of oil releases 12 million joules of energy. How much oil is needed to generate the electricity you use? Give your answer in both liters and gallons.

Sea \( f(x)=\frac{1}{x} \quad g(x)=x \) la función \( f(x) / g(x) \) será:

Consider the following equilibrium system: \[ \mathrm{PCl}_{5}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \] A 10.00 L evacuated flask is filled with 0.4150 mol \( \mathrm{PCl}_{5}(\mathrm{~g}) \) at 297.4 K . The temperature is then raised to 501.7 K , where the decomposition of \( \mathrm{PCl}_{5} \) gas takes place to an appreciable extent. When equilibrium is established, the total pressure in the flask is \( \mathbf{2 . 4 3 3} \) atm.

ва комбайна убрали пшеницу с поля. Первый убирал 0 га в день, а второй - с 8 га в день. Первый работ дней, а второй - на один день меньше. Какова пл адь поля?

Solve the following: Show your solutions 1. All items in Store ACE have \( 12 \% \) sales tax inclusive. Ernesto bought a wallet and observed that in his receipt, he paid a total tax of P126 for his purchased wallet. How much is the cost of the wallet? 2. Jha bought a lipstick with tag price of P600 + \( 8 \% \) sales tax. How much should she pay for her purchase? 3. Jena bought some food from a fast-food restaurant. The total amount of her ordered food was P855 plus a \( 12 \% \) VATQHow much was the total amount she paid to the cashier? 4. Cora bought a new laptop computer that costs P28 985 . Looking at her Official Receipt, she found out that a sales tax of P2 318.80 was added to the cost of the laptop she bought. Find the sales tax rate. 5. The sales tax on a P13 800 appliance is P1 656 . What is the rate of sales tax? 6. How much sales tax is charged for an item that costs P250 if the sales tax rate is 6\%? How much is the total price? 7. A set of 6 -piece notebook is sold at P150 and the sales tax is \( 8 \% \). What is the total cost of this set of 6 -piece notebook including the sales tax? 8. The cost of a watch including a tax of \( 20 \% \) is Php 1344 . What is the price without the tax?

в) \( |-7|-|-1|+|3| \)