midnightblack1405 midnightblack1405

03-02-2022
Mathematics

contestada

What is ∑n=17(10n+90) equal to?

Enter your answer in the box.

What is n1710n90 equal to Enter your answer in the box class=

Respuesta :

goddessboi goddessboi

03-02-2022

Answer:

910

Step-by-step explanation:

[tex]\sum_{n=1}^{7}(10n+90)\\\\=\sum_{n=1}^{7}(10n)+\sum_{n=1}^{7}(90)\\\\=10\sum_{n=1}^{7}(n)+90(7)\\\\=10(\frac{7(7+1)}{2})+630\\\\=10(28)+630\\\\=280+630\\\\=910[/tex]

Answer Link

Otras preguntas

22. How are the outer planets different from the inner planets (besides their distances!)? Exclude Pluto. (Pick only one answer). A) The outer planets consist m

What is the principal beliefs of Islam?

why is it important to consider your audience opinions when making an argument

When is the speed of light a constant 299,792,458 meters per second

solve for x: x + 4.5 = -7.75

why is it important to consider your audience opinions when making an argument

Discuss the importance of network applications and services in those respective domains. Choose any three (3) domain below for your discussion: -Education and l

This problem requires putting together several concepts to calculate the tem- perature of the sunlit side of the Moon. The Moon absrorbs most of the sunlight fa

What number has 3 hundreds and 18 tens?

solve 3x^2=-12x-15 x=-4+2i x=-4+i x=-2+2i x=-2+i