Situation: A farmer in China discovers a mammal
hide that contains 73% of its original
amount of C-14.
N = Noekt
No - inital amount of C-14 (at time
t = 0)
N-amount of C-14 at time t
k = 0.0001
t = time, in years

step-by-step explanation:

how many centimeters did the level of the salsa go down by?

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

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