25-01-2019
Mathematics

contestada

a recursive rule for an arithmetic sequence is a1=-4 an=4+a (n-1)
What is the 4th term?

Respuesta :

28-01-2019

Answer:

4th term is 8

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}a_1=-4\\a_n=4+a_{n-1}\end{array}\right\\\\a_2=4+a_1\to a_2=4+(-4)=4-4=0\\\\a_3=4+a_2\to a_3=4+0=4\\\\a_4=4+a_3\to a_4=4+4=8[/tex]

Answer Link

Otras preguntas

Mrs. Monroe is painting her room and she uses 5 gallons of paint. How many pints of paint did she use?

For StartFraction 8 x Superscript 7 Baseline + 10 x Superscript 6 Baseline + 20 x Superscript 5 Baseline + 33 x Superscript 4 Baseline + 23 x cubed + 37 x squar

Why China's Silk Road is so significant?

Determine the measure of angle A, B, and C in triangle ABC. If m∠A=(x-10)°,m∠B=(2x-50)°,and m∠C=x°

Write -0.06 as a fraction

y=1+sinx/cosx find dy/dx

What function do names play in society? (for an essay so please be specific)

50 points plsssss help 12. A triangle has side lengths of 6, 8, and 10. Is it a right triangle? Explain.

Subraya de rojo la personificación y de azul la comparaciónLa primavera besabasuavemente la arboleda,yel verde nuevo brotabacomo una verde humareda,Antonio Mach

HELP ASAPPPP PLEASE I NEED TO FINISH ASAP