I dont understand this :( will give brainliest pls help

see explanation

Step-by-step explanation:

Calculate the length of EG in the right triangle using Pythagoras' identity

EG² + 6² = 8²

EG² + 36 = 64 ( subtract 36 from both sides )

EG² = 28 ( take the square root of both sides )

EG = = = 2

--------------------------------------------

tanF = = = =

---------------------------------------------

sec E =  and

cosE = = = , thus

secE = = = ← rationalise the denominator

secE = × =

-------------------------------------------------

cosF = = = =

=

=

=

Step-by-step explanation:

Because ∠G is a right angle, we know that the hypotenuse will be drawn from the two legs and will not touch ∠G.

E

|   \

|       \   8

|           \

G-----------F

     6

Using Pythagorean Theorem, we find that EG =  

= =

=

= =

=

= =

=

~Hope this helps!~

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.