Questions on Algebra: Complex Numbers answered by real tutors!

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Question 627042: How do I solve this question:
Write the quotient in the standard form a+bi.
6/5-i

Thank you!!
Click here to see answer by jim_thompson5910(35256)

Question 627941: How do you write the expression (-11+3i)+(4-6i) as a complex number in standard form?
Click here to see answer by jim_thompson5910(35256)

Question 627973: Solve the problem as directed.
If x varies inversely as y and directly as t, and x = 12 when t = 10 and y = 25, find y when x is 6 and t = 3.
y=
Click here to see answer by ewatrrr(24785)

Question 627970: Solve the problem as directed.
x varies directly as y, and x = 153 when y = 9. Find x when y = 13.
x=_____
Click here to see answer by ewatrrr(24785)

Question 628064: 5 + yi = x + 3i
Click here to see answer by jim_thompson5910(35256)

Question 627999: Solve the problem as directed.
If x varies inversely as y and directly as t, and x = 12 when t = 10 and y = 25, find y when x is 6 and t = 3.
y=
Click here to see answer by mananth(16946)

Question 628294: a^2-2a+1/6 divided by (a^2-1)
Please help. keep getting the answer -a/3 and it is wrong.
Click here to see answer by richwmiller(17219)

Question 629776: Find the indicated power using De Moivre's Theorem. (Express your fully simplified answer in the form
a + bi.
(8− 8i)8
Click here to see answer by Alan3354(69443)

Question 629838: Can anyone help? For my practice lesson of Complex Fractions,
the question is:
1) Find:
2a^5/6b^12 * 9b^7/5a^3
I apologize, if it's a bit difficult to read, but they are both fractions, and a multiplication problem.

Click here to see answer by Alan3354(69443)

Question 629846: On my practice lesson, complex fractions.
I am bit overwhelmed with questions with three or four terms in a fraction.
Can anyone please help or explain how to solve?
Find:
(15ab-5a)/(16a^2-9) / 6b^3-2b^2/8ab+20a-6b-15
It's a division problem consisting of two fractions,
I understand I need to factor out. But the 8ab+20a-6b-15 is really throwing me off during the process, please help?
Click here to see answer by jim_thompson5910(35256)

Question 629848: How do you reduce this complex fraction in lowest terms?
x^2-9/5x^2-9x-18
Click here to see answer by jim_thompson5910(35256)

Question 629847: How do you reduce a complex fraction in lowest terms?
12x^2-x-6/6x^2-11x-10
Click here to see answer by richwmiller(17219)

Question 630038: I am looking to find an example of a polynomial that has real coefficients, degree of 5 as well as exactly two real zeros and 2 complex (non real) zeros.
So far I have came up with x^5 + 5x - 7.
Am I on the right track? What do I do next?
Click here to see answer by stanbon(75887)

Question 631494: Please simplify and solve
6√(-64) + 12√(-36)
Click here to see answer by Tatiana_Stebko(1539)

Question 631494: Please simplify and solve
6√(-64) + 12√(-36)
Click here to see answer by ewatrrr(24785)

Question 631497: Please simplify and solve
4√(-13) - 6√(-13)
Click here to see answer by jim_thompson5910(35256)

Question 631497: Please simplify and solve
4√(-13) - 6√(-13)
Click here to see answer by ewatrrr(24785)

Question 631480: Please simplify and solve
3i-10/8i-5
Click here to see answer by Tatiana_Stebko(1539)

Question 631474: Please Simplify and solve
11i^2+1/-12i-8
Click here to see answer by Tatiana_Stebko(1539)

Question 631630: multiply (x + 2)(2x^2 - 2x - 3)
Click here to see answer by Maths68(1474)

Question 631762: Mark had 3 times more marbles than Isabella. Isabella had 2/3 more marbles than Jack for a total of 99 marbles. How many marbles did Mark, Isabella, and Jack each have?
Click here to see answer by stanbon(75887)

Question 631785: If $30.00 dollars is paid for 5 hours of work. How much will 19 hours of work be? identify variable, write equation and then solve.
Click here to see answer by ewatrrr(24785)

Question 632223: I'm supposed to find the solutions of x for the equation:
27x^3=(x+5)^3
I tried using the difference of cubes where a=(x+5)^3 and b=27x^3 but running through it gave a polynomial to the 6th power, which doesn't do me much good. Please help.
Click here to see answer by reviewermath(1029)

Question 632388: How do I write the product/quotient in standard form for these problems 1+3i/2i and 2i/3+i?
Click here to see answer by Alan3354(69443)

Question 633389: what is the quotients of 3 825 divided 75

Click here to see answer by rfer(16322)

Question 634184: -1<5-2p<5
Click here to see answer by lynnlo(4176)

Question 634396: 2x^2 + 3x + 1 + x^2 +1/ 2x-1 =
I'm getting a slightly different answer, Please help if you can.
Click here to see answer by richwmiller(17219)

Question 634552: Please answer this, SImplify: 1-(1/x + x)^2 over (1/x - x^2) (1/x -1+x)
Click here to see answer by radh(108)

Question 633704: (11 - 3i) - [(3 + 2i) - ( 4 - i)]
Click here to see answer by asuar010(338)

Question 633703: [(4 +3i) - (7+2i)] + (6+2i)
Click here to see answer by asuar010(338)

Question 634980: (2-5i)^2
Click here to see answer by ankor@dixie-net.com(22740)

Question 361631: on page 280 of the algebra 2 book problem 5 reads i^40 i cant figure out how to solve it...
Click here to see answer by Alan3354(69443)

Question 636617: 1 + 1
--
a
-------------------
1 - 1
--
2a

Click here to see answer by stanbon(75887)

Question 637238: How do you solve this equation: (((sqrt 10/ 2 sqrt9)))
Click here to see answer by MathLover1(20849)

Question 637409: evaluate.simplify your answer write an exact answer using i as needed
i^32
Click here to see answer by Edwin McCravy(20054)

Question 637508: (2-I)z-(5-9i)=9i solve for z
Click here to see answer by MathLover1(20849)

Question 637551: Express each of the following in the form a+bi where a and b are real numbers:
(i) e^((ipi)/3)
Thank you!
Click here to see answer by solver91311(24713)

Question 637660: For algebra 2 im having problems with 0.3(2r-3)=0.2r+0.9
Click here to see answer by ewatrrr(24785)

Question 637728: (-14 � 6i) � (28 + 13i) I need to put this in standard form, how do i do it?
Click here to see answer by Alan3354(69443)

Question 637964: Simplify: 1/x-y � 1/x + 1/y (One divided by x minus y all over one divided by x plus one divided by y)
Click here to see answer by MathLover1(20849)

Question 638528: Simplify the following expressions using your knowledge of imaginary numbers.
- square root 2 times square root -2
Click here to see answer by stanbon(75887)

Question 638529: Simplify the following expressions using your knowledge of imaginary numbers.
-1 / 3+ i
Click here to see answer by josmiceli(19441)

Question 638507: Write the complex number (3 - i)/(i + 2) in the standard form a + bi, with a and b in fractional form.

Click here to see answer by MathLover1(20849)

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