Suppose How to bake a chocolate cake<br>Preheat the oven to 350 degrees Fahrenheit. Grease and flour a 9x13 inch baking pan. In a large bowl, combine the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
Can we infer that "It is necessary to preheat the oven before baking a cake."? Yes, no, or maybe?