Answer:
18
Step-by-step explanation:
The elements you can see in the reaction are Calcium(Ca), Hydrogen(H), and Oxygen(O). So there are 3 elements in the chemical reaction.
Answer: I think it’s E and D
Explanation:
Because they lie above the plane W not on the plane.
Answer:
log5 19 - log5 x
Step-by-step explanation:
log5 19/x
log ( a/b) = log a - log b
log5 19 - log5 x
Complimentary angles add up to 90 degrees
2x + 4x = 90
6x = 90
x = 90/6
x = 15 <==