leontina1710 leontina1710

12-03-2021
Mathematics

contestada

S = 1^2+ 2^2 + 3^2 + ... + 2019^2 + 2020^2
what is the sum of S?

Respuesta :

sqdancefan sqdancefan

13-03-2021

9514 1404 393

Answer:

2,749,509,870

Step-by-step explanation:

The formula for the sum of n squares is ...

Sn = n(n+1)(2n+1)/6

For 2020 squares, the sum is ...

S2020 = 2020(2021)(4041)/6 = 2,749,509,870

Answer Link

Otras preguntas

If 585.24 Joules of heat are added to 53.2 grams of water at 24.15oC, what will the new temp. be?

A 100-kg cannon at rest contains a 10-kg cannon ball. When fired, the cannon ball leaves the cannon with a speed of 90 m/s. What is the recoil speed of the cann

A cost object is anything for which management desires a separate tracking of costs, while a cost driver is the factor that causes the cost object to increase o

How can logical fallacies be effective? Explain. 100 points for 2 paragraphs

All competitive advantages have Group of answer choices a. a limited life. b. an expiration date. c. the ability to earn above-average returns indefinitely. d.

Researchers hypothesized that cocaine is pharmacologically active in the primate fetal brain when pregnant primates are administered cocaine at doses typically

1. Bailey withdrew $135 from her checking account. Write an algebraic expression that describes Bailey's action please help !!

Antigens are chemical agents that fight cell destroys free radicals. a. True b. False

Endpoint: (10, 12), midpoint: (6,9) find the other endpoint?

Collagen is found in connective tulissue through out the human bosy. Collagen is made of three amino acid chains that arebteisted aroynf one another. Which of t