taycamrichanag taycamrichanag

21-10-2016
Mathematics

contestada

Find the sum of the first 50 terms of the arithmetic series: 1, 4, 7, 10, 13, … 2,900 3,550 3,725 4,225

Respuesta :

nobillionaireNobley nobillionaireNobley

26-10-2016

1, 4, 7, 10, 13, . . .
a = 1, d = 4 - 1 = 3, n= 50
Sn = n/2[2a + (n - 1)d] = 50/2[2(1) + (50 - 1)3] = 25[2 + 49(3)] = 25[2 + 147] = 25(149) = 3,725

Answer Link

Otras preguntas

What is -y + 92 – 16y – 25z + 4 written in simplest form?

What factors Contributed to the end of reconstruction?

Based on your personal opinion, which ancient discovery is the most important that its absencewould have changed the course of history and would have greatly af

i need answer. Please help me.

5. The coefficient of x7 in the polynomial then7x17 - 17x11 + 27x5 - 7 is

At which approximate x-value are these two equations equal y = √1 - x^2 y = 2x - 1

Which of the following Reiterates the controversy on the topic of raising the minimum wage? A. Whether or not to raise the minimum wage has been a controversial

Texas Reading Academy: Module 10 Review

Let x stand for the percentage of an individual student's math test score. 64 students were sampled at a time. The population mean is 78 percent and the populat

What additional piece of information would prove ALMK = ANMK by Side-Angle-Side?