stronium-90 has a half life of approximately 29 years. let the initial amount of st-90 in a sample be 100g. if decay function S(y)=100*0.5^y/29 expressing the amount of st-90 that remains in a sample after y years in how many years 1g of st-90 will be left?

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

could you provide figure.

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%

i belive the biggest ratio would be 18: correct me if im wrong