20 miles/2 hours = 10 miles/1 hour, therefore her average speed is 10mph
1 joule = 6,242e+18ev
20 joule = 20 joule *6,242e+18 ev/joule =1,248e+20 ev
1,248e+20 ev / (10 ev / photon) =1,248e+19 photons.
Answer:
21
Step-by-step explanation:
s=2
so, v=2+19
19+2=21
Answer:
B
Step-by-step explanation:
Let divide g(x) by f(x)

The domain of a rational function cannot equal zero so let set the bottom function to zero.


Square both sides

Also we can simplify the bottom denomiator into a square root function

The domain of a square root function is all real number greater than or equal to zero because a square root of a negative number isn't graphable.
So we must find a answer that
- Disincludes 4 from the interval
- Doesnt range in the negative number or infinity)
- Range out in positve infinity
- The answer to that is B