matthewryan15 matthewryan15

04-07-2020
Mathematics

contestada

Find the sum of the arithmetic series for which a_1 = 7, n = 31, and a_n = 127.

Respuesta :

gilbertazavedo72 gilbertazavedo72

04-07-2020

Answer: 2077

There are 31 terms.

S₃₁ = 31(a₁+a₃₁)/2 = 31(7+127)/2 = 2077

Answer Link

Otras preguntas

How did legalism influence Chinese society during dynastic era

Name the image of S under a reflection in line m.a. Tb. Vc. Sd. W

If z(t) = 2t2 + 7t – 4, find z(–2) and z(7). A. z(–2) = –26; z(7) = 143 B. z(–2) = –10; z(7) = 143 C. z(–2) = 11; z(7) = 101 D. z(–2) = –2; z(7) = 241

I don't understand this probability problem.

The largest pool of gloabal carbon is found within... a. Terrestrial soil b. Ocean waters c. Atmosphere d. Deep ocean sediments e. Living biomass

A microspore develops into a(n) A. seed B. sporophyte C. male gametophyte D. female gametophyte. E. ovule.

Given sample set A= {1,2,3,4,5} how many items are in the complement of set B if set B= all numbers greater than 2? OPTIONS : 3 , 5, 2 , or 4 Just stuck on thi

According to the International Union for Conservation of Nature and Natural Resources (IUCN), 73% of species have become extinct, endangered, vulnerable, or rar

A client was diagnosed with pernicious anemia due to poor food intakes. What food groups is she likely lacking? a. Vegetables and Grains b. Fruits and Protein

Which statement explains what aerobes use oxygen to do? a.) to insulate themselves in anaerobic enviroments b.) to prevent free radicals from reacting with DNA