Let ABC be a right triangle at A(AB a. Prove: AH=MN.
b. Prove: angle B = angle ANM.
c. Let AD be the median of triangle ABC. Prove: AD is perpendicular to MN.

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.

b

step-by-step explanation:

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step-by-step explanation: