Series
Indicated sum of the terms in a sequence is called a series. The result of performing the additions is the sum of the series...
Indicated sum of the terms in a sequence is called a series. The result of performing the additions is the sum of the series...Sequences and Series Examples
1 , A 2 ,.....,A n are called the n arithmetic means between a and b. (vii) The sum of n A.M.s between given numbers a and b is equal to n times the A.M. between a and b. (viii) If a, b, c are in A.P., then for any k: (a) a+k, b+k, c+k are in A.P. (b) a-k, b-k, c-k are in A.P...
1 , A 2 ,.....,A n are called the n arithmetic means between a and b. (vii) The sum of n A.M.s between given numbers a and b is equal to n times the A.M. between a and b. (viii) If a, b, c are in A.P., then for any k: (a) a+k, b+k, c+k are in A.P. (b) a-k, b-k, c-k are in A.P... Objectives: Read and write numbers less than 10000. Relate each 4-digit number to its place value.
Some more word problems
Question : Shortest distance from point (-3,6) to the line x=4?
Shortest distance from point (4,-3) and y=2?
I know... I've asked a million of these questions. But my tutor is out of town and I have a major assignment due Monday.
Sorry guys.
Answer : 1. the line x=4 is a vertical line at x=4.., so the shortest distance would be at the point where the line is across from the point and that would be at the point (4,6) (y's are equal and x stays at 4 always)... you can figure out that the distance is the distance between -3 and 4, which is 7 or use the distance formula (two points are (4,6) and (-3,6)) distance = square root of [(diff of x's)^2 + (diff of y's)^2] square root of [(-3-4)^2 + (6-6)^2] square root of [(-7)^2 + (0)^2] square root of 49 7 2. line at y= 2 is horizontal so it would be closest to the point (4,-3) when it is directly above it, or at (4,2). Again, by inspection the distance is the distance between -3 and 2 or 5. If you prefer to use the distance formula: (4,-3) and (4,2) distance = square root of [(diff of x's)^2 + (diff of y's)^2] square root of [(4-4)^2 + (-3-2)^2] square root of [(0)^2 + (-5)^2] square root of 25 5.. More from Yahoo Answers
Answer : 1. the line x=4 is a vertical line at x=4.., so the shortest distance would be at the point where the line is across from the point and that would be at the point (4,6) (y's are equal and x stays at 4 always)... you can figure out that the distance is the distance between -3 and 4, which is 7 or use the distance formula (two points are (4,6) and (-3,6)) distance = square root of [(diff of x's)^2 + (diff of y's)^2] square root of [(-3-4)^2 + (6-6)^2] square root of [(-7)^2 + (0)^2] square root of 49 7 2. line at y= 2 is horizontal so it would be closest to the point (4,-3) when it is directly above it, or at (4,2). Again, by inspection the distance is the distance between -3 and 2 or 5. If you prefer to use the distance formula: (4,-3) and (4,2) distance = square root of [(diff of x's)^2 + (diff of y's)^2] square root of [(4-4)^2 + (-3-2)^2] square root of [(0)^2 + (-5)^2] square root of 25 5.. More from Yahoo Answers
Question : This is a series in a pattern.
44,34,24,14,_,_,_,_ complete the pattern
My son's answer was this: 44,34,24,14,4,-6,-16,-26.
Teacher's answer was this:44,34,24,14,4,?,?,-98
I don't know what those blanks were and I don't see how she got -98. She is a second grade teacher in John Cotton Tayloe, Washington, North Carolina.
I really want to know how she got that answer and took off points for his paper. Well she also marked my sons' friend's paper for having the same answer as ..
Answer : Looks like the teacher made a mistake. They do make mistakes. Maybe your son should ask her about it. To me it looks like a -10 pattern. Unless the pattern changes for negative numbers... More from Yahoo Answers
Answer : Looks like the teacher made a mistake. They do make mistakes. Maybe your son should ask her about it. To me it looks like a -10 pattern. Unless the pattern changes for negative numbers... More from Yahoo Answers
Looking for More Help!
