What is the length of chord vi in c below

A. 9.3 units

Step-by-step explanation:

line CR and CV are radius of the circle, therefore CR = CV

the length from C to the Mid chord is the same for VI and RA, i.e

CVI = CRA = 4.7 units

the radius CR for chord RA is 6.6 units, gotten using phythagoras theorem

since the radius and 4.7 unit are the same, therefore

the chord length VI = RA = 9.3 units

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

20

step-by-step explanation: