Answer:
x = 9
Step-by-step explanation:
By remote exterior angle theorem:

Cos(30)=x/15
15cos(30)=x
Cos= adjacent/ hypotenuse
Answer: c. 66
Step-by-step explanation:
Add 76 and 38.
76+38 = 114
Take 180 minus 114
180-114 = 66
Answer:
2.
Step-by-step explanation:
To find the answer, we take Gordon's result, 3, and subtract 2, which is what he added to get 3. This gives us a result of 1. We then multiply by 2, as 1 was the quotient of dividing the original number by 2. This leaves us with an answer of 2.
Answer:
Step-by-step explanation:
- Initial amount = 2112 g
- Time = 188 days
- Half-life = 47 days
188 days / 47 days = 4 periods
<u>Mercury left after 188 days:</u>
- 2112 * (1/2)^4 =
- 2112* 1/16 =
- 2112/16 =
- 132 g