In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B...

Mar 18, 2011 · Other symbols I have seen used for "is defined to be equal to" are three horizontal lines instead of two, and $=$ with either a triangle or "def" written directly above it. I have seen variants of …

Dividing by a negative number is the same as dividing by a positive number and then multiplying by $-1$. Dividing an inequality by a positive number retains the same inequality. But, multiplying by $-1$ …

Feb 16, 2025 · You should sign the back of your debit card on the signature strip to activate it and help prevent fraud.

Feb 15, 2025 · Yes, you typically need to sign the back of a check in order to deposit it. This signature is known as an endorsement and is required by most banks to verify the authenticity of the deposit.

Nov 1, 2022 · I came across a question that seemingly breaks the rule of flipping the sign when multiplying or dividing by a negative sign. Here is the equation to be solved. $$|-x| \\geq 6$$ The …

Jan 1, 2025 · To sign "tender" in American Sign Language (ASL), use a gentle touch or patting motion on the back of your non-dominant hand with your dominant hand's fingertips.

Sep 15, 2023 · The dollar sign is placed before the amount in standard American English. For example, you would write "$50" rather than "50$." This convention is used in financial documents, pricing, and ...

Feb 15, 2025 · Yes, you can sign over a government check to someone else by endorsing the back of the check with your signature and writing "Pay to the order of recipient's name" above your signature.

Mar 7, 2025 · Sign your name exactly as it appears on the front of the card, ensuring consistency for verification purposes. Avoid using a marker or pencil, as these may fade or be erased over time.