243.875 rounded to the nearest tenth, hundredth, ten, and hundred on a number line
2 answers:
Answer:
The answers are:
- nearest tenth: 243.9
- nearest hundredth: 243.88
- nearest ten: 240.00
- nearest hundred: 200.00
Step-by-step explanation:
In order to determine the answer, we have to know about notation numbers.
In any number, every digit has a notation, depending on its position.
I have attached an image that shows some notation numbers.
Also, if we want to round the number, we have to see the position of the cut and the next digit.
There is a rule:
If the "next digit" is equal or greater than 5, we have to increase "the cut number" in one unit.
If the "next digit" is lesser than 5, "the cut number" does not change.
In this case, for 243.875:
nearest tenth:
cut number=8
next digit=7
rounded number=243.9
nearest hundredth:
cut number=7
next digit=5
rounded number=243.88
nearest ten:
cut number=4
next digit=3
rounded number=240.00
nearest hundred:
cut number=2
next digit=4
rounded number=200.00
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Answer:
Sadie's error is " she made error in step 2 where
"
Because she made error in splitting the powers to simplify the square root
<h3>Therefore the correct answer for Sadie's expression isStep-by-step explanation:
Given that " Sadie simplified the expression StartRoot 54 a Superscript 7 b cubed EndRoot, where a greater-than-or-equal-to 0, "
It can be written as where
The given expression is where
To find Sadie's error and explain the correct answer :
Sadie's steps are
where
where
(by using the identity
(by using the identity
)
Therefore where
Sadie's error is " she made error in step 2 " where
Because she made error in splitting the powers to simplify the square root
<h3>Therefore the correct answer for Sadie's expression is
For this case we have a function of the form:
Where,
A: initial amount
b: growth rate (for b> 1)
x: independent variable
y: dependent variable
We then have the following function:
Using the definition, the following statements are correct:
1) The function is exponential
2) The function increases by a factor of 2.5 for each unit increase in x
3) The domain of the function is all real numbers
Where,
A: initial amount
b: growth rate (for b> 1)
x: independent variable
y: dependent variable
We then have the following function:
Using the definition, the following statements are correct:
1) The function is exponential
2) The function increases by a factor of 2.5 for each unit increase in x
3) The domain of the function is all real numbers