Mathematics, 01.07.2020 15:01, itsmichaelhere1

If the sum of first 9 terms of an A. P is equal to sum of its first 11 terms, then what is the sum of its 20 terms? Pls Anyone help me!!

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, lizzynmk

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

Answers: 2

continue

Mathematics, 21.06.2019 18:30, genyjoannerubiera

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8 feet of ribbon. he cut off one piece that was 3 5/8 feet long and another piece that was 1 1/4 feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

Answers: 1

continue

Mathematics, 21.06.2019 18:50, jen12abc82

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

Answers: 1

continue

Mathematics, 21.06.2019 23:40, redhot12352

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?

Answers: 1

continue

Do you know the correct answer?

If the sum of first 9 terms of an A. P is equal to sum of its first 11 terms, then what is the sum o...