Narancia Ghirga

Most popular questions and responses by Narancia Ghirga
  1. Math

    Write the geometric sequence that has five geometric means between 1and 15,625. I got: 1, 5, 25, 125, 625, 3,125, 15,625, … is it ok?

    asked on June 4, 2019
  2. Math

    Convert the rectangular coordinates into polar coordinates (-5,-5sqrt3)

    asked on June 12, 2019
  3. Math

    Write the arithmetic sequence that has three arithmetic means between -16 and 16. I got -16, -8, 0, 8, 16 is it okay?

    asked on June 4, 2019
  4. Math

    Find the sum of a geometric series with the following values: a1=3; r=2; n=10 i got; 2,880

    asked on June 4, 2019
  5. Math

    Write the following complex number in polar form. Express all angles in degrees rounded to the nearest tenth. Given complex number: 5+6i

    asked on June 13, 2019
  6. Math

    Which of the following is another representation of the polar coordinate P=3,45° ?

    asked on June 12, 2019
  7. Math

    Write 10+6+2+(-2)+(-6)+(-10)+(-14) in sigma notation.

    asked on June 13, 2019
  8. Math

    Write the mathematical expression that describes the arithmetic sequence. Use sigma notation to describe the sum of the first ten terms of the arithmetic sequence 20, 18.5, 17, 15.5, 14, (the difference is from -1.5) Help, please!

    asked on June 7, 2019
  9. Math

    The value of a particular investment follows a pattern of exponential growth. You invested money in a money market account. The value of your investment t years after your initial investment is given by the exponential growth model A=2600e^0.08t . By what

    asked on June 13, 2019
  10. Math

    Find the sum of the first 30 terms of the sequence: -1, 1, -1, 1, -1, … I got -1 is it okay?

    asked on June 4, 2019
  11. Math

    Suppose you deposit $10,000 into a savings account with 3.5% compound interest compounded each month. Find the account balance in 50 years. Round the answer to the nearest thousand dollars. Help  

    asked on June 10, 2019
  12. Math

    Which of the following is a complex fourth root of -16? I got 2(cos90°+isin90°) Is it okay?

    asked on May 30, 2019
  13. Math

    Find the eighth term of the sequence 5, -15, 45, -135 ... I got -10,935

    asked on June 13, 2019
  1. Math

    In my exercises, the only answer appears as 61(cos5.2+isin5.2) and sqrt61(cos5.2+isin5.2)

    posted on June 13, 2019
  2. Math

    wait how can I write that in a paper?

    posted on June 13, 2019
  3. Math

    r=61 and TanØ= 50.2° so it would be like 61(cos5.2+isin5.2)?

    posted on June 13, 2019
  4. Math

    I got -3,225 is it okay?

    posted on June 12, 2019
  5. Math

    Thanks Reiny, I have problems with maths

    posted on June 4, 2019