emy8947 emy8947

26-07-2017
Mathematics

contestada

Write the sum using summation notation, assuming the suggested pattern continues. -9 - 3 + 3 + 9 + ... + 81

Respuesta :

amirreza688 amirreza688

26-07-2017

-9 -3 +3 +9 +15 +....+81=15+21+...+81=(23*66)/2=759

Answer Link

BlankUniverse BlankUniverse

08-02-2021

Honestly I believe this is correct:

∑ 15 at the top, n =0 (-9+6n)

Answer Link

Otras preguntas

Finish the pattern 18, 21, _ , 24, _ , 30

What were the Nuremberg laws?

8c^2-88c+242 How do you solve this?

what is the square root of 500

71 is 10 less than my number. What is my number?

Which expression is equivalent to cos 150°? Our three choices are: A. cos 30° B. cos 330° C. cos (-30°) D. cos (-210°)

If all three populations were mixed together and placed at 37°C, which of the following would be most likely to happen? (A) Only the population evolved at 25°C

Write as a fraction in simplest form.

Explain the steps you would take to write 36/10 as a decimal

how to work out what is the larger 7/8 - 8/9