KaylaBoo1234 KaylaBoo1234

19-02-2015
Mathematics

Answered

1)What are the first four terms of the sequence represented by the expression n(n-1)-5

Answer :

21-02-2015

[tex]a_n=n(n-1)-5 \\ \\ a_1=1(1-1)-5=1 \times 0-5=0-5=-5 \\ a_2=2(2-1)-5=2 \times 1-5=2-5=-3 \\ a_3=3(3-1)-5=3 \times 2-5=6-5=1 \\ a_4=4(4-1)-5=4 \times 3-5=12-5=7[/tex]

The first four terms are -5, -3, 1 and 7.

Answer Link

Other Questions

A jeweler creates triangular earrings by bending pieces of silver wire Each earring is an isosceles triangle with the dimensions shown how many can be made from

how can octapus camoflage with environment

On what piece of territory was the Battle of Bunker Hill fought

A goal of the Yalta Summit was to discuss agreements about nuclear weapons concerns about communist advances plans for postwar Germany and Europe creating a nuc

how did African Americans challenge segregation after world war 2

A cheetah runs with a positive acceleration What does this tell you about the velocity time graph for the cheetah A Graph negative slope B graph positive slope

ricky found a beetle that has a body one fourth the length of the fraction strips used in problem 12 how many beetle how many beetle bodies placed end to end wo

sarah has 122 jellybeans and jonah has 165 how do you add it equally

Andrew had 250 in his savings account He deposited the same amount of money for each of the next 6 weeks for the next 4 weeks he deposited twice the money as th

Which word in the sentence is the action verb Comets travel around the sun A travel B sun C around D Comets