ovientabamarvel ovientabamarvel

03-05-2022
Mathematics

contestada

Find the sum of the first 20 term of the Series 5+8+11+14+....

Respuesta :

XxAtomicxX XxAtomicxX

03-05-2022

Step-by-step explanation:

Sn=n/2(2a+(n-1)d). n=20

S20= 20/2 (2x5+(20-1)3 a=5

S20=10(10+57). d=8-5=3

S20=10x67

S20= 670

Hope this helps you

have a great day

Answer Link

Otras preguntas

the diameter of a circle is 24 centimeters. what is the circles area? use 3.14 for pi

43 Natasha spends $9 for supplies to make necklaces that she sells for $2 each. Her profit is given by the expressioin 2n - 9. What does the variable n represen

Pls help no wrong answers

If you could live anywhere, where would it be?

I am needing help making a graph for supply and demand with todays gas prices. someone help!!!! :)

Which substance may lower air temperatures after a volcanic eruption? lava sulfur dioxide carbon dioxide water vapor

If the activity of a radionuclide decreases from 5,000 disintegrations per minute to 625 disintegrations per minute in 12 hours, its half-life is?

(-14+3i)-(14i) = ? Express your answer in the form (a + bi).

What is the formula for finding the midpoint of a segment? Circle your choice.

Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle? The triangle is acute because 22 + 52 > 42. The triang