Scientific notation is
(number <u>></u>1 and <u /><10) times 10^x
so if you have 4.5 times 10^3 that means
4.5 times 1000=move the decimal place down 3 places
4500 so
0.001
it needs to be 1 times 10^x power
count the decimal places
3 places to the right
when you need to move the decimal place to the right, you multiply it by -x
so 1 times 10^-3 is the answer
Answer:
see explanation
Step-by-step explanation:
1
Given
2x² - 16 = 0 ( add 16 to both sides )
2x² = 16 ( divide both sides by 2 )
x² = 8 ( take the square root of both sides )
x = ±
= ± 2
------------------------------------
2
Given
- 5x² + 9 = 0 ( subtract 9 from both sides )
- 5x² = - 9 ( divide both sides by - 5 )
x² =
( take the square root of both sides )
x = ±
= ± 
-----------------------------------------
3
Given
6x² - 15 = 27 ( add 15 to both sides )
6x² = 42 ( divide both sides by 6 )
x² = 7 ( take the square root of both sides )
x = ± 
using the law of sines, you can say that f=28 units. Hope this helps
Okay I did the work and I think it’s either answer a or b but goodluck sorry
But I still don’t understand this.
The answer is 18. It says that Trina scored 6 less than Rachel and Trina scored 12. Add 12 and 6 and get 18. Rachel scored 18 points