Sep 14, 2024 · A fair coin is flipped until either three heads in a row or four tails in a row occur. What is the expected number of times the coin is flipped? Express your answer as a common fraction.

Dec 8, 2018 · There are possible codes without restrictions. There are codes that differ in only one spot from mine (three choices for the differing digit and nine choices for its value), 3 codes that result from …

Feb 14, 2017 · For example: log 4 ≈ 0.477 log 4 ~ 0.477 Which statement is more correct? : Equivalence relation between elements and is proportional to

May 14, 2024 · To solve this problem, let's consider each square individually. Each square must have two adjacent squares of the same color. Let's count the possibilities for each square: 1. **Corner …

Mar 15, 2022 · Another code I like to use to make things invisible is \phantom {} It will makes whatever you put inside invisible! I sometimes use it for spacing Also there is the \hspace command which can …

Feb 3, 2018 · A pencil, eraser and notebook cost a total of S1.00. If a pencil costs more than 2 erasers, 8 erasers cost more than 3 notebooks, and 5 notebooks cost more than 6 pencils, find the cost of a …

Mar 6, 2019 · In Morse code, each symbol is represented by a sequence of dashes and dots. How many distinct symbols can be represented using sequences of 1, 2, 3, or 4 total dots and/or dashes?

Jan 13, 2016 · Best Answer Click on LaTeX, clear the textbok, then type tan. Then type {}^ {}. Inside the second brackets type -1. Then click on OK.

May 14, 2022 · The UPC code, made up of numbers and dashes, on a video tape is 9-78094-11006-x. The digit x is in the 12th position. Let n be the value obtained by adding the digits in the odd …

Apr 10, 2023 · May not contain 0 or 1. No repeats. Calculate the probability - open lock at first attempt - code > 5000 - 3rd digit is 2. So I said: For the 1st number, we can only have a 5,6,7,8,9. However, …