Answer:
Step-by-step explanation:
How to write numbers in standard form:
Write the first number 8.
Add a decimal point after it: 8.
Now count the number of digits after 8. There are 13 digits.
So, in standard form: 81 900 000 000 000 is 8.19 × 10¹³
Answer:
18 inches and 57 inches
Step-by-step explanation:
The diameter and the circumference of a circle are proportionate to each other.
The circumference of a circle will always be the diameter times . We know this because the circumference of a circle is represented as
Since the diameter is twice the radius, we multiply the radius by 2 - there's already a in this equation, so .
1st option: , this is close to 57 so it's reasonable.
2nd option: , this isn't close to 28 at all.
3rd option: , this isn't close to 80 at all.
So the 1st option is reasonable.
Hope this helped!
Answer:
my answer is A, C, and D...................
Answer:
C) cannot be simplified
<u>Explanation</u>
We want to simplify the radicals:
We can rewrite this as exponents:
Since the base are the same but are subtracting, we do not have any rule of indices for subtracting unlike indices .
Therefore the expression cannot be simplified further.