ananduus143 ananduus143

02-07-2021
Mathematics

contestada

sum of first n terms of an ap sequance is 3n2+5n.what is the sum of its first n+1 terms.find the sum of its first 10 terms.

Respuesta :

loconte loconte

02-07-2021

Answer:

a) 3n^2 + 11n + 8

b) 350

Step-by-step explanation:

10) 3(10^2)+ 5*10 = 350

n+1) 3(n+1)^2 + 5(n+1)

3(n^2 + 2n + 1) + 5n+5

3n^2 + 6n+3 + 5n + 5

3n^2 + 11n + 8

Answer Link

Otras preguntas

Housands of japanese american were forced to leave their homes and live in government provided communities for the duration of wwii. these temporary housing uni

Since the year 2000, the incidence of type 2 diabetes in children and teens has

I need this answered correctly and fast! Please help me I beg of you. Find the value of angle c. Explain/justify your steps.

Efficacy and safety of canagliflozin monotherapy in subjects with type 2 diabetes

Arbuscular mycorrhizal fungi differ from ectomycorrhizal fungi in that arbuscular mycorrhizal fungi __________.

How much energy is required to heat 40g of water from -7 degrees Celsius to 108 degrees Celsius (Lf= 335,000J/Kg for ice)

Explain why not all collisions between reactant molecules lead to reaction

The articles of confederation created a ______ between the various states.

The book was written in 1924 in the bavarian fortress of landsberg am lech, where hitler was imprisoned after the abortive beer hall putsch of 1923. by 1939 it

you bought 4 bananas and 5 apples at the store for $2.50 the next day you bought 10 bananas and 3 apples at the store for $3.40. The bananas and apples had the