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brandiwingard
08.12.2020 •
Mathematics
Amaya had 5 letters to mail. How many stamps did she use if she put x stamps on every letter?
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Ответ:
5x
Step-by-step explanation:
Ответ:
But the definition of a reciprocal is: "A mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity."
Which means
Negative reciprocals means, on the other hand, literally negative of reciprocals.
For example,
And when you multiply a number with its negative reciprocal, you get -1.
In choices, it says "the product of", which means when you multiply two numbers, the answer is the product of the two numbers.
So, if their slopes are negative reciprocals, their "product" has to be -1.