15-05-2021
Mathematics

contestada

Find the sum of the 1st 112 terms of: 7 + 11 +15 + .....
25648
112
224
25846

Relax

Respuesta :

spectrojamz spectrojamz

15-05-2021

Answer:

It is an Ap (Arithmetic Sequence)

d=4

a=7

n=112

Using the Formula

Sn= n/2[2a + (n-1)d]

Sn= 112/2 [2(7) + (112-1)(4)]

Sn= 56[14 + (111)(4)]

Sn= 56[14 + 444]

Sn= 56(458)

Sn= 25,648.

Answer Link

Otras preguntas

Find x in the following (it’s not allrealnumbers, 0, no solutions by the way, i checked)

What did we learn about encounters between European & Muslim civilizations?

Translate the sentence into an equation four more than six times a number is 11

If one plant is named Salvia greggii and another is named Salvia vanhouttei, what does this tell you about these plants? A.) They belong to the same genus and c

HELP MEEEEEEEE PLEASE

I already know the FEC = 90 but whats ABC

(Help asap!) Select Is a Function or Is not a Function to correctly classify each relation. which one is a function and which is not? {(3,2),(6,4),(9,6),(12,8)}

How successful was the Civil Rights Movement? Back up your response with specific evidence from the readings along with any outside knowledge that you can.

help me with this please

lon khoáng nào đóng vai trò đặc biệt quan trọng trong quá trình đông máu?