Hunter120H Hunter120H

04-02-2022
Mathematics

contestada

Please help me I will give you extra points and the brain thing
The sum of the first n consecutive even numbers can be found using S = n2 + n, where n > 2. What is the value of n when the sum is 30?
A. 5
B. -6
C. -5
D. 6

Respuesta :

semsee45 semsee45

04-02-2022

Answer:

A. n = 5

Step-by-step explanation:

S = n² + n

When S = 30:

n² + n = 30

Subtract 30 from both sides: n² + n - 30 = 0

Factorize: (n - 5)(n + 6) = 0

Therefore n = 5 or -6

As n > 2, then n = 5 only

Answer Link

Otras preguntas

What are some ways in which companies can attract and retain employees?

Is kindergarten part of elementary school?

Vitamin A is excellent for the eyes. Which fruit contains, by far, the most Vitamin A? Pears, Oranges, Tangerines, or Cantaloupe

What are some behaviors pandas have to learn before it can be reintroduced into the wild?

Rationalize the denominator (-7x^2)/√(6x-6)

Which element of fiction is shaped across the work and can be revealed implicitly when a text is read closely? a. characterization b. plot c. setting d. theme e

Some viruses cause infected cells to _____, or rupture, as when hiv infects and reproduces within t cells.

In Section 8, which clause gives Congress the most general, non-specific powers?

A box contains 10 items, of which 3 are defective and 7are non defective. Two items are randomly selected, one at a time, with replacement, and x is the number

A woman has been brought to the emergency room because she says that she has been seeing green ooze running down the walls of her bedroom. she is demonstrating: