Answer: D. a heuristic.
Step-by-step explanation: Heuristic is the use of simple mental shortcuts to solve problems and make decisions quickly and efficiently without spending a lot of time thinking about the problem and how to solve it.
In this case, Tim uses the simple trick of reminding himself that "i" comes before "e" except after "c", without spending time to actually remember or memorize the correct spelling of the word.
Answer:
130} \atop {15.99+0.09*(m-130),m>130}} \right.[/tex]
Step-by-step explanation:
We will have a partial funcion to define an expression for the monthly phone charge, because we have a condition that changes the monthly cost.
For months under 130 minutes, there will not be any additional charge other that tha base monthly cost, so the expression for the months under 130 minutes will be the monthly fee.
For months over 130 we will have the same information than above, but we have to add a fee for every minute over 130 minutes. To find the amaunt of minutes over 30 minutes we will just subtract 130 to the amount of minutes used: (m-130). Then we will multiply that number times the cos of each minute over 130 minutes: 9*(m-130). Finally we will add the basic phone fee: 15.99 + (0.09*(m-130)).
Now we set the conditions and use the correct notation for a partial function and we get:
130} \atop {15.99+0.09*(m-130),m>130}} \right.[/tex]
he mixture refers to the one pound mix of peanuts and raisins that cost $7.50.
So you need to figure out how much of that 1 lb is raisins and how much is peanuts based on how much they each cost separately.
r=raisins, p=peanuts
(r x $3.25) + (p x $5.75) = $7.50
(sin^3 x + cos^2 x * sin x)/(cos^2 x)