0
In AP if the 6th and 13th terms are 35 and70 respectively find the sum of its first 20 terms?
Wiki User
∙ 10y ago
We need the common difference to accurately get the first term and then use it to find the sum of the first 20 terms.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What was abolished under the constitution?
slavery and prohibition, respectively the 13th and 21st amendments
What is the 13th hour of the day?
1pm The first hour is zero hundred in military time and midnight to 1 AM on a 12-hour clock. So, the second would be one hundred hours and 1 AM to 2 AM, respectively. If we continue this, then the 13th hour of the day is noon to 1 PM (also denoted twelve hundred to thirteen hundred hours, but it's the same thing in both). That makes the 13th hour 12 PM, not 1 PM.
Where did Friday the 13th first begin?
The first movie came out in 1980
What movie was made first Halloween or Friday the 13th?
Friday the 13th has 12 movies to the franchise, and Halloween has 10 movies to the franchise; including the two remakes. So, Friday the 13th has the most movies of the two.
Why is Taylor swifts lucky number?
Her birthday is the 13th, she turned 13 on Friday the 13th, her first album went gold in 13 weeks, her first song has a 13 second intro, and every time she has won an award, she has been seated in the 13th seat, the 13th row, or the 13th section. She talked about it in an interview, pretty amazing if I do say so myself c:
What was the scarest Friday the 13th movie?
The first one.
Is Delaware is the 13th state?
No, it's the first state.
When were mosaics first made?
in the 12 -13th century
Why did Friday 13th start?
i your talking about the horror movie series, Friday the 13th, the original first film with Betsy palmer as pamela, the first film was made in 1980.
When and where were first olympic was held?
the first olpimeccj were held in london 13th october
How many people are killed in Friday the 13th part 1?
The body count for the first Friday the 13th is 10 people.
The first state to ratify the 13th Amendment to Constitution abolishing slavery?
Illinois was the first state to ratify the 13th Amendment because they wanted Abraham Lincoln's home state to be the first to ratify they amendment.
