Polonium-218 has a half-life of about 2 days.
after 10 days, how many milligrams of a 1200 mg sample will remain?

37.5 mg

Step-by-step explanation:

Half life of Polonium-218 = 2 days

Initial sample mass = 1200 mg

Time interval = 10 days.

Number of half lives in 10 days = = 5

After 5 half lives the initial sample will reduce to  of its initial amount.

So 1200 mg will reduce to  = 37.5 mg

The resultant sample weight will become 37.5 milligram after 10 days.

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

grab rope, tie a loop-de-loop, put it around ur neck, now jump while its tied to a high place. now your shoes are cool.

step-by-step explanation: