math

posted by .

The numbers 1, 7, 21, 35, 35, 21, 7, 1 form a row of pascal's Triangle.

Which power of (a+b) does the row go with?
Write the next row?

  • math -

    easy ....

    since (a+b)^n = 1a^2 + na^(n-1) b + ....

    so 1, 7, 35 ... must come from (a+b)^7

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    This is about problem solving patterns in 4th grade. The question asks What are the fewest nunber of buttons you need to make six rows in this pattern?
  2. math

    If Jenny built a triangle out of soup cans and there are 4 at the top row she added 2 cans to every next row so there are 8 cans in the second row. How many cans are in the 12th row?
  3. Advanced Math

    Find DE if matrix D= Row 1= -2,4,6 and ROW 2= 5,-7,1 and matrix E= Row 1= 1,-2 Row 2= 0,-4, and Row 3= -3,4 WORK: [(-2)(1)+(4)(0)+(6)(-3)]=-20 [(-2)(-2)+(4)(4)+(6)(4)]=44 [(5)(1)+(-7)(0)+(1)(-3)]=2 [(5)(-2)+(-7)(4)+(1)(4)]=-34 The …
  4. math (plz help)

    In a movie theater, theater A has 30 seats in the first row. Each next row has 4 more seats in it than the previous row has. 1) How many seats are in the 4th row?
  5. Math

    I am supposed to find the pattern of a triangle of fractions, and find the next two rows. However, I can't seem to find the pattern. Could you please help me out?
  6. Grade 9 Algebra Question 3 (LAST)

    PASCAL’S TRIANGLE For Exercises 5 and 6, use the following information. Blaise Pascal is known for a special triangular arrangement of numbers, calledPascal’s Triangle.. Each number insuccessive rows of the triangle is created …
  7. Math

    What would be the second number in row 23?
  8. math

    a gardener is making a triangle planting with 35 plants in row ,31 in the second row ,27 in the third row and so on . if the pattern is considered how many plants will be there in the last row?
  9. math

    A gardener is making a triangular planting, with 35 plants in the front row, 31 in the second row, 27 in the third row and so on. If the pattern is consistent how many plant are there be in the last row?
  10. Math- arithmetic

    A pile of blocks has 60 blocks in the bottom row, 54 blocks in the second row, 48 blocks in the third row, and so on until there are only 6 blocks on the top row. How many blocks are in the 8th row?

More Similar Questions