Answer should be A as both values in the expression need to be negative after expanding.
I don’t know so sorry maybe ask someone else but just go back to the passage and see if you can find it
Answer:
9.03x10^16---------1.5x10^-7 helium
2.709x10^24-------4.5 nitrogen
1.9264x10^28-------3.2x10^4 hydrogen
4.8782x10^14--------8.1x10^-10 xenon
Step-by-step explanation: i got it right PERIOD PURRRRR
Answer:
The angle of elevation of the sun is 
.
Step-by-step explanation:
Let 
be the angle of elevation of the sun as shown in the diagram.
Then the side length which is 
feet is opposite to and the side length which is 
feet is adjacent to .
Therefore we use the trigonometric ratio that involves the opposite and adjacent sides, which is the tangent ratio.
We solve for to get,
To the nearest degree, the angle of elevation is
Pemdas
exponent first
remember that x^0=1
basically anything to the 0 poiwer is 1
so
10^1=10
10^0=1
now we have 10+1=11
