Need help fast Yesterday's afternoon temperature was 21°F. It plunged overnight to -3°F. How many degrees did the temperature dr
1 answer:
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Answer:
99
Step-by-step explanation:
Through some clever algebra, we can combine our first two equations using the fact that
We have the a² and the b² in the equation , and we <em>almost </em>have a 2ab in the equation
. To get that 2ab, we can simply double both sides of the first equation to get
. From there, we'll add the first two equations together, giving us the summed equation
And since , we can equivalently say that
Word form:
<span>ninety billion, one hundred seventy-five million, eighty-seven thousand, three hundred nine
Number form: view attachment</span>
<span>ninety billion, one hundred seventy-five million, eighty-seven thousand, three hundred nine
Number form: view attachment</span>