65 Answered Questions for the topic Sum

03/31/22

Find the sum of the following aritmetic formula.

∑(2n-1) from n=1 to 3 find the sum

11/23/20

07/07/19

Use the sum-to-product formula to simplify the expression: If sin41∘+sin19∘=sinA∘,0<A<90, then A= ____degrees

please provide all steps for the solution!!!!

05/05/19

I want to find the exact sum of the power series.

I have the power series (n3^n-1)/(2^2n) going from 1 to infinity. How do I find the exact value for the series. I believe that we just use a power series function that we already know and based off... more
Sum Quotient

09/25/18

two numbers have a sum of 44. The quotient of the larger number and three is 12 more than the smaller number. Find the numbers.

two numbers have a sum of 44. The quotient of the larger number and three is 12 more than the smaller number. Find the numbers.

09/14/18

what is the gcf and sum of 15 and 60

15 + 60 The sum of the numbers as a product of their GCF is
Sum

09/11/18

The sum of a
Sum

09/05/18

if the sum of twice a number and negative 7 is increased by 8 the result is 16 greater than the opposite of the number what is the number

if the sum of twice a number and negative 7 is increased by 8 through 16 greater than the opposite of the number what is the number

08/02/18

!!!!!algebra 2 question! need help ASAP!!!!!!

Explain why we can have a converging infinite series when 0 < r < 1. Hint: Use "sum of a finite geometric series" as a basis for your explanation.                                           ... more

07/01/18

Sum of direction angles of vector [0,1,0] is?

pi/2, 0, pi or 3pi/2? Also explain plz thank you.

05/12/18

Calculating upper and lower limits for a linear function

I am asked to calculate the lower limit and upper limit (L5 and U5) for the linear function y=13-3x, between x=0 and x=4.   I have found that Δx=4/5, and that x0 =0. However, I am getting my... more
Sum

04/22/18

It takes a month for a horse, two months for a goat and three months for a sheep to eat a cart of hay.

It takes a month for a horse, two months for a goat and three months for a sheep to eat a cart of hay. How many months does it take for a horse, a goat and a sheep to eat a cart of hay together?

02/11/18

How can I find convergence of this sum, without using the integral test: (sum goes from 1 to inf)

∑(sqrt(n+2) - 2sqrt(n+1) + sqrt(n))
Sum

01/11/18

sum of two numbers

the sum of two numbers is 20. one is three more than the other. What are the numbers?

12/31/17

10/18/17

the conjugate of a sum is the sum of the conjugates of the individual complex numbers

please help I have no idea what this means and I need the work to show how to do it

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