Answer:
aprox: 9 years?
Step-by-step explanation:
im sorry if this is wrong!
The chemical structure includes the bonding angle, the type of bonds, the size of the molecule, and the interactions between molecules. Slight changes in the chemical structure can drastically affect the properties of the compound.
Answer:

Step-by-step explanation:
Given that the change is -13/10 in 10 seconds
Here, you can write this statement as;
10s = -13/10
30s=?----------------perform cross-multiplication
(-13/10 * 30 ) /10

Answer:
B) 6.68
Step-by-step explanation:
Use Cosine.
Cosine= Adjacent ÷ Hypotenuse
In this case the base you want to find is adjacent to the angle, 42°. Hence,
Cos (42)= adjacent ÷ hypotenuse
Cos (42) = x ÷ 9
x = Cos (42) × 9. Input that into your calculator.
x= 6.68
To remember the trigonometric ratios/formulas
Use the acronym, SOHCAHTOA
Hope this helps!!!!