Squares of Natural numbers from the range of 1 to 20:
1^2 = 1
2^2 = 4
3^2 = 9
4^2 = 16
(whereas 5^2 = 25 which is outside the range).
There are 4 numbers out of 20, so the probability is 4/20*100% = 20%
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Answer:
10x+11y-3w
Step-by-step explanation:
you just have to add the side up and do it by matching up with the values of the variable
Here you go this took me time
Answer: X intercept: (-4,0) Y Intercept: (0,-3)
Step-by-step explanation: i dont know if thats how it was suppose to be done or not but that is just the intercepts for it.
Morse code is essentially the same as binary. That is, there are two "digits", a dot or a dash.
There are 26 letters in the English alphabet. Clearly, we can't just use one dot or dash, since that could only encode 2 letters at the most. We can't use two symbols because that could only encode 4 letters at the most. Similarly, 3 symbols means

letters at most.
We have to select the smallest power of 2 that exceeds or is equal to 26. In this case,

, so we would have to use up to 5 symbols to encode each letter in the alphabet.