makala431143 makala431143

14-10-2021
Mathematics

contestada

if a1 = 7 and an = -2an-1 then find the value of a5

if a1 7 and an 2an1 then find the value of a5 class=

Respuesta :

discipulus discipulus

14-10-2021

Answer:

[tex]a_1 = 7 \\ a_n = - 2a_{n - 1} \\ a_2 = - 2a_1 = - 2(7) = - 14 \\ a_3 = - 2a_2 = - 2( - 14) = 28 \\ a_4 = - 2a_3 = - 2(28) = - 56 \\ a_5 = - 2a_4 = - 2( - 56) = 112[/tex]

Answer Link

Otras preguntas

What is a benefit of online banking? A. No risk of identity theft B. Typically higher interest rates C. Ability to do banking anytime D. Customer se

A filter circuit is activated when the current reaches 5 amperes. If a charge is fed to the circuit starting at 1 ampere and is steadily increased by 50% of the

“Simile” by N. Scott Momaday What did we say to each other that now we are as the deer who walk in single file with heads high with ears forward with eyes watch

1+4=5 2+5=12 3+6=21 8+11=?

Which statement best describes a mole? It is used mainly for writing chemical formulas. It is used for chemical equations that have reversible reactions. It i

The picture below shows a portion of a river dam: Which of the following can be used to calculate the height of the river dam? a) 115/cos50 degrees b) 115 cos 5

sara is traveling home from a friends house. she drives 80 miles in 2 hours. if the total trip is 100 miles, how long will it take her to get home, assuming she

1.Which statement best describes scientific laws Scientific laws are scientists' opinions of why events occur in nature. Scientific laws describe specific relat

Find the distance between the points given. (-3, -4) and (0, 0)

Find the value of x. Round your answer to the nearest tenth. sin 46(degrees)=x/14