its C
Step-by-step explanation:
- 2\sqrt5
this is the tan©
but you have to multiply by sqrt 5
so its become -2sqrt5/5
Answer:
-4 and 4
Step-by-step explanation:
You count between the zeros as when you jump on a number line or just don't count the zero
-4, -3, -2 ,-1, 0, 1, 2 ,3, 4
Hope this helps
Given that I no not see any explanation in the previos answer, I think you can benefit of this.
Exothermic refers only to the fact that the reaction releases energy in the form of heat when occurs. So, the enthalpy is higher at start and lower and the end.
Seen in this way, you can deduct that the change in enthalpy is negative, which is what the third option says.
Let C present amount of change
The expression is C = 50 - d
So hmmm let's do the left-hand-side first
now, let's do the right-hand-side then
