2.789 in word form and in expanded form
2 answers:
Answer:
The answers are Two and seventy hundred eighty-nine thousandths and 2.0+0.7+0.78+0.789
Step-by-step explanation:
In order to express the decimal number in its word form and in its expanded form, we have to know some notation about the position of every number.
In word form, you have to write the number in words. Every number position has a notation, both the whole number part as the decimal part.
I have attached two images that show some notations and examples about writting decimal numbers.
In expanded form, you have to separate the number in additions.
So, in this case:
Word form:
2.789= Two and seventy hundred eighty-nine thousandths
Expanded form:
2.789=2.0+0.7+0.78+0.789
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Answer:
Step-by-step explanation:
The graph you see there is called a parabola. The general equation for the graph is as below
To find the equation we need to find the constants a and b. The constant b is just how much we're lifting the parabola by. Notice it's lifted by 1 on the y axis.
To find a it's a little more tricky. Let's use the graph to find a value for a by plugging in values we know. We know that b is 1 from the previous step, and we know that when x=1, y=3. Let's use that!
Awesome, we've found both values. And we can write the result.
I'll include a plotted graph with our equation just so you can verify it is indeed the same.
