Determine the time that elapses until half of of the element remains (pre-calc) GIVEN: a piece of charcoal is at 32% of what it originally had, 5800 years half life

what I found: k= -0.000119508, tree dies 9534 years ago

I need to know in years how long until half of the element remain please.
THANKS!!

here is your answer hope it's helpful for you

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong