austinbrewer382 austinbrewer382

10-09-2021
Mathematics

contestada

Given the arithmetic sequence with the following two
terms, write the explicit rule.
a_5 = 25 and a_11 = 85

Respuesta :

lynnkc2000 lynnkc2000

10-09-2021

Answer:

aₙ = -15 + 10 * (n-1)

Step-by-step explanation:

aₙ = a₁ + (n-1)*d a₁: first term d: common difference

a₅ a₁ + 4d =25 .... (1)

a₁₁ a₁ + 10d = 85 ...(2)

(2) - (1) 6d = 60

d = 10

a₁ = -15

Formula: aₙ = -15 + 10 * (n-1)

Answer Link

Otras preguntas

the Oregon trail streched from oregon to

Tina drew an animal cell in her science notebook. What’s wrong with the cell?

what is the function of the structure labeled nucleus

During the 1950 federal government funded educational initiatives in math and science in response to

please help. I do not know how to answer this question. :\

Write an equation, in point-slope form, for the line that goes through points (4,4) and (-4,-1). A.) Y= 5/8x - 3 1/2 B.) Y= 4x + 1 1/2 C.) Y= 5/8x + 1 1/2 D.) Y

How does energy usually flow in ecosystems? A. from the Sun through consumers to producers B. from the Sun through producers to consumers C. from pr

The density of a hippo is approximately 1030kg/m^3,so it sinks to the bottom of the freshwater lakes and rivers. A 1500kg hippo is completely submerged ,standin

Which of the following is an equation of a line perpendicular to the equation y=-2/4x-4

1. Describe three ways in which work influences lifestyle?