Pplllzzz hellpppme

21

Step-by-step explanation:

Given the radius (SV) = 10.5 cm, the diameter (RT) is 21 cm.

10.5(21) = 10.5(21)

The intersecting chords theorem or just The chord theorem is a statement in elementary geometry that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal.

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

add a pic of the graph, then ill edit this "answer" and solve it for you : 3

step-by-step explanation: