0
Still curious? Ask our experts.
Chat with our AI personalities
Coach
Judy
ReneAdd your answer:
Earn +20 pts
What is a system for solving problems using letters to represent numbers?
It is algebra.
What do negative numbers represent in real world situations?
Loss or negative growth, mostly in economic matters temperature
What do imaginary numbers represent?
The real numbers together with the imaginary numbers form a sort of vector. What these complex numbers (complex means the combination of real and imaginary numbers) represent depends on the specific situation. Just as there are situations where it doesn't make sense to use negative numbers, or fractional numbers, in many common situations it doesn't make sense to use complex numbers. In an electrical circuit (specifically, AC), the real numbers might represent resistance, while the imaginary number represent reactance - and voltages and currents are also represented by complex numbers, with the angle of the complex number representing how much one quantity is ahead or behind another quantity (the "phase angle"). In quantum mechanics, the complex numbers might not represent anything (perhaps they don't, I am not sure...), but they are useful for calculations.
Is there a number that doesn't have a square root?
Any negative number, and infinity. However, a number (called "i") was created to represent the square roots of negative numbers.
HOW TO write integers that can be used to represent the situation like a debit of 60?
If you use positive numbers to represent money which you have or are owed (credit), then use negative numbers to represent debits.Remember, though, that sometimes the choice of which of the two is positive is arbitrary and depends on you. If I owe you money, the situation would be represented by a negative number in my accounts but a positive entry in yours.
