A beacon helps guide sailors via a lighthouse, just as a compass aids in navigation. The relationship is based on purpose.
The total number of marbles is 3+4+5=12.
The probability of the first green marble is 5/12
The probability of the second green marble (after one green is drawn) is 4/11
Thus, the combined probability is: 5/12 * 4/11 = 20/132 = 10/33.
The sequence follows the rule: +5, +10 , +20, +40. Adding 40 to 38 gives 78.
The pattern involves keeping the shape the same while changing the color from black to white.
Factorize 2𝑥 : 2^𝑥 (1+2) = 48 → 2^𝑥 multiplied by 3 = 48 → 2^𝑥 = 16.
𝑥 = 4 because 2^4 = 16
