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:
The value of c that completes the square
is 1
Step-by-step explanation:
We need to find the value of c that completes the square 
The formula used will be: 
In the question given the value c can be found by breaking the middle term. we are given 2x while the general formula is 2ab for middle term so,
2(x)(1) = 2x
so, c= 1
Solving:

So, the value of c that completes the square
is 1
Answer:
2970
Step-by-step explanation:
2700+ 270
270 because that is 10% of 2700
2700 because that is 75 x 36
Answer:
D
Step-by-step explanation:
Data without variability means data that doesn't change.
Whatever you do, the number of games the Texans won in the 2014-15 season won't change.