karrrina21 karrrina21
  • 03-06-2021
  • Mathematics
contestada

Write an explicit formula for an, the nth term of the sequence 7, -28, 112, ....

Respuesta :

hnori22003
hnori22003 hnori22003
  • 03-06-2021

t( 1 ) = 7

q = t( 2 ) ÷ t( 1 ) = - 28 ÷ 7 = - 4

____________________________

t( n ) = t( 1 ) × q^( n - 1 )

t( n ) = 7 × ( - 4 )^( n - 1 )

Answer Link

Otras preguntas

write an equation with the solution x=25
luz earns $400 for 40 hours of work. use the ratio table to determine how much she earns for 6 hours of work.
The fastest a human has ever run is 27 miles per hour. How many miles power minute did the human run?
-3x+25+x+21=2please explain the steps i'm really confused
Natural disasters can have positive effects on an ecosystem. True or false?
Why did a division of labor occur when people started to produce a surplus of food?
What is the value of x?
Millie has a box of 1 hundred cubes. She also has a bag of 70 cubes. How many trains of 10 cubes can she make?
i am in 5th grade. jorrod's sports card holder can hold 9 cards on each page. how many pages will jarrod need if he has 75 sports card.solve using models. expla
Will someone please explain how to do -(7c-18)-2>0 Step for step??? I don't understand how to.