Ashard from a vase originally contained 250mg of carbon -14 and now contains 170 mg of carbon -14. use the equation a = ao(0.5)t/5570, where ao is the original amount of carbon -14 in the shard and a is the amount of carbon -14 in the shard t years later, to find the approximate age of the shard. round to the nearest while number.

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

a

step-by-step explanation:

believe it or not anna is correct good job anna give me a fist bump there u go gal