Which shows 60^2 − 40^2 being evaluated using the difference of squares method?
1 answer:
The difference of squares method uses the following formula:
Answer A has the squares multiplied out, then put into the formula, which is incorrect.
Answer B does not use this formula, as the squares are multiplied out and solved without using this method.
Answer C subtracts in terms of the power, which is completely wrong.
The answer is D.
Answer A has the squares multiplied out, then put into the formula, which is incorrect.
Answer B does not use this formula, as the squares are multiplied out and solved without using this method.
Answer C subtracts in terms of the power, which is completely wrong.
The answer is D.
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Answer:
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Answer:
<h2>The total value of all the letters in the alphabet is 676.</h2>Step-by-step explanation:
The problem is about an arithmetic sequence where the difference is 2, the first term is 1 and we know that the alphabet has 26 letters.
To find the total sum of all values, we have to use the following formula
Where ,
and
. Replacing values, we have
Therefore, the total value of all the letters in the alphabet is 676.