Answer: 7cm
Explanation:
The surface area of a sphere is calculated by using the formula:
A = 4πr²
Since the surface area is 616cm², using the formula given, the radius will be calculated thus:
A = 4πr²
616 = 4 × 22/7 × r²
616 = 88/7 × r²
Multiply both side by 7/88
616 × 7/88 = 88/7 × 7/88 × r²
49 = r²
r = ✓49
r = 7
The radius is 7cm
Answer:
0.4 ml
Explanation:
The mother solution contains 10 mCi, but the patient just need 4 mCi.
So using a rule of three, it would be:
10 mCi - 1 ml
4 mCi - X X = (4x1) /10 = 0.4 ml
And considering the half life of 6 hours, need to pass 18 h to have a dose in the body that is insignificant. (at the first 6 h it will have 2 mCi, at the next 6 hours 1mCi, at the next 6 hours 0.5 mCi)
So it would be 0.4 ml of the mother solution every 18 h.
Answer:
see below
Explanation:
Cravings are one of the biggest reasons why people have problems losing weight and keeping it off.
Here are three simple ways to prevent or stop unhealthy food and sugar cravings.
1. Drink Water
Thirst is often confused with hunger or food cravings.
If you feel a sudden urge for a specific food, try drinking a large glass of water and wait a few minutes. You may find that the craving fades away, because your body was actually just thirsty.
2. Distance Yourself From the Craving
When you feel a craving, try to distance yourself from it.
For example, you can take a brisk walk or a shower to shift your mind onto something else. A change in thought and environment may help stop the craving.
3. Get Enough Sleep
Your appetite is largely affected by hormones that fluctuate throughout the day.
Sleep deprivation disrupts the fluctuations, and may lead to poor appetite regulation and strong cravings.
Hope this helps
Pernicious anemia is a disease where one cannot absorb the sufficient amount of vitamin B-12
Should be left to supervisors I think