Questions on Algebra: Complex Numbers answered by real tutors!

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Question 317077: 4 divided by(3-5i) write in the form of a+bi.
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Question 317423: WHAT IS COMPLEX NUMBER
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Question 317829: Please help me. For the complex number, state the real part, the imaginary part and identify the number as real, pure imaginary, or nonreal complex.
-4 - 6i
Thank you
Click here to see answer by jim_thompson5910(28476)

Question 317973: This is a complex fraction and am asked to simplify and show work but I've tried other questions like these and haven't gotten one yet right so I would like some help please.
(3/5b^4) - (1/10b) over (7/3b^2) + (9/15b)
I put each fraction in ( ) thinking it'd be easier to read...
Click here to see answer by checkley77(12569)

Question 318032: I need your help with this: Find the conjugate of the number 8+2i Thank you
Click here to see answer by jim_thompson5910(28476)

Question 318371: I desperately need some help. Please help me with this question.
Write the result in standard form (8+3i)(7+4i)
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Question 318436: 2+i/7-5i
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Question 318593: #1
(x - 5)(x + 10)
x(x) + x(10) -5(x) -5(10) = ?
Click here to see answer by Fombitz(13828)

Question 318634: Find the value for r if C = 32
C = 2[pi]r
Click here to see answer by stanbon(57219)

Question 318180: 3(x+y)- 4 (y-x)= 19
4(2x-y) + y = 18
Click here to see answer by stanbon(57219)

Question 318654: One half of the sum of three consecutive multiples of 10 is 90. What are the multiples of 10?
Click here to see answer by JBarnum(2044)

Question 318642: Jim's weekly pay is two thirds of Alicia's. Together they earn $800 per week. What is each person's weekly pay?
Click here to see answer by rfer(12644)

Question 318656: Solve the following equation for v:
S = (-1/2)gt^2 + vt
subtract (-1/2)gt^2 from both sides
s - (-1/2)gt^2 = vt, or,
s + (gt^2/2) = vt
then divide by t
s/t + gt^2/2t = v, or,
s/t + gt/2 = v
therefore, v = s/t + gt/2
Click here to see answer by geochica(3)

Question 318836: how do you simplify these problems? and what does the instructions mean when it says "leave your answers in the standard form of a complex number?" i only had 3 questions so i put them all on one page. i hope this was ok.
#1) 8i divided by 4-3i

#2) -15-^-18 divided by 33

#3) ^-75-^-300

Click here to see answer by CharlesG2(828)

Question 318857: how do you solve this equation?
x^2=15x-36
*x is squared*
Click here to see answer by Fombitz(13828)

Question 318858: how do you solve this equation?
3|2x+11|+10=-35

Click here to see answer by Fombitz(13828)

Question 318856: how do you solve this equation?
(x-4)^2/3-2=2
Click here to see answer by JBarnum(2044)

Question 318785: Please try to help with this one. If it takes 2 men to do a job in 12 hours, how many men do the same job in 30 minutes?
I can't figure this one out. I really will be relieved if I can get the answer. Thanks.
B.
Click here to see answer by scott8148(6628)

Question 318851: If it takes 2 men to do a job in 12 hours, how many men will it take to do the same job in 30 minutes?
Click here to see answer by ankor@dixie-net.com(15624)

Question 319283: Let z = a + bi represent a general complex number. As noted in the lesson, the conjugate of z, abbreviated conj(z) or conj(a + bi) is the complex number a-bi. Also, the modulus of z, modulus(z) is the "size" of z, or SQRT(a2 + b2). Which of the following is true for all complex numbers?
I am having a really hard time with this problem. Help would be greatly appreciated.
Thanks
Click here to see answer by stanbon(57219)

Question 319281: Find the Polynomial P(x)having real coefficents, with the degree and zeros indicated. Assume the lead coefficient is 1. Recall (a+bi)(a-bi)=a^2 + b^2. degree 4, x- -7, x=9, x= -6i.
Click here to see answer by Fombitz(13828)

Question 319298: 1 3
1- + 3-
2 8
kindly show me the steps to solve the problem
thank you
Click here to see answer by Fombitz(13828)

Question 320383: 1.If (a+ib)/(c+id)=A+iB ,then prove that (a-ib)/(c-id)=A-iB
Click here to see answer by CharlesG2(828)

Question 320939: (-x/(1-x)+(1+x)/x)/((1-x)/x-x/(1+x))
Click here to see answer by mananth(12270)

Question 321043: Find the quotient of the complex numbers.
(4 + 4i )/(7 + 6i )
Click here to see answer by stanbon(57219)

Question 319748: If x+iy=(a+ib)*(a+ib)*(a+ib) then show that x/a+y/b=4(a^2-b^2)
PLZ help!!!!
Click here to see answer by J2R2R(94)

Question 321779: If x+a=(b/3)x and b=/ 3, then x =?

Click here to see answer by stanbon(57219)

Question 322208: For g(x)=sqrt(x+1)^2, find g(10)
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Question 322230: what is (-4-8i) (3+i) please solve answer
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Question 322438: true or false
Like terms can be added or subtracted?
Click here to see answer by Alan3354(30959)

Question 322660: I understand how to find the square root of i, but I am unsure how to find the cube root of i
the following problem is an example
show that sqrt(3)/2+i/2 is a cube root of i
thank you!
Click here to see answer by stanbon(57219)

Question 322743: Please help me figure out how to find the complex zeros of the equation:
f(x)=4x^3+19x^2-61x+14
Click here to see answer by Fombitz(13828)

Question 322760: is the actual equation the complex number?
example: 2-3i
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Question 323154: For i= square root -1, if 3i(2+5i) = x+6i, then x = ?
Click here to see answer by QH(50)

Question 323198: I need to solve for h. Here is the equation D = 1.2 sqrt(h)
Thanks!
Click here to see answer by stanbon(57219)

Question 323178: Graph the line with equation: y= -3x + 1
Click here to see answer by rfer(12644)

Question 323187: I am using the formula w = Cr^-2. The value for w is 100 and the value for r is 3,963. In solving for C, I get a very large number.... 1,570,536,900. Is this correct?
Click here to see answer by checkley77(12569)

Question 323175: solve for y
-4(y-1)=2y-44
Click here to see answer by rfer(12644)

Question 323169: solve for p
s=2B+Ph
Click here to see answer by rfer(12644)

Question 323177: -4(-5y+t)-3(6t-y)
Click here to see answer by checkley77(12569)

Question 323176: 3*(-5)-(1-3^2)^2
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Question 323338: Find all solutions, real and complex of the equation:
a. x^4+x^3+x^2+x=0
b. x^3+3x^2+9x+27=0

Click here to see answer by Alan3354(30959)

Question 323465: please help me solve this
Click here to see answer by checkley77(12569)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365