Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 696342: Solve: 2x^2 + 72 =0
Click here to see answer by checkley79(3341)

Question 696961: equivalent (3+i^2)+(3+i^2)
Click here to see answer by Alan3354(69443)

Question 696961: equivalent (3+i^2)+(3+i^2)
Click here to see answer by MathLover1(20850)

Question 696963: What is equalent to 5+i/2i
Click here to see answer by algebrahouse.com(1659)

Question 696962: Find the x & y to make this equation true
3x-4+(y-3)i=11+5i
Click here to see answer by lwsshak3(11628)

Question 697014: simiplify (2x^-1+2y^-1)/(xy/4)
Click here to see answer by Alan3354(69443)

Question 697066: 22. What is the binomial of p^4-6p^3+7p^2+7p-3
Click here to see answer by Alan3354(69443)

Question 697067: 5x^(2)-22+24
Click here to see answer by Alan3354(69443)

Question 697015: simpilfied form of (4x^2y^2-9t^2)/(4x^2y^2-12xyt+9t^2)
Click here to see answer by MathLover1(20850)

Question 697080: How do I solve this 2-3i/1+i ?
Click here to see answer by Alan3354(69443)

Question 697080: How do I solve this 2-3i/1+i ?
Click here to see answer by stanbon(75887)

Question 697087: What are these answers and how do you do them?
1. (5-2i)(3+4i)
2. 2-3i/1+i
3. 5+2i/3-i
4. 1-2i/3i
Click here to see answer by MathLover1(20850)

Question 697069: Simplify (3/a-2) - (2/4-a^2)
Click here to see answer by god2012(113)

Question 695823: Consider the complex number =e^(i π/3) . Write that complex number in rectangular form
Click here to see answer by jim_thompson5910(35256)

Question 697194: If f(x) and g(x) are inverse functions what would [f(g(x)]^2
Click here to see answer by jim_thompson5910(35256)

Question 697068: 26. What is the simplified form of (2x+3)/(2x^2-8) - (x+1)/(x^2-x-6)
Click here to see answer by MathLover1(20850)

Question 697198: a rocket is fired from the ground with the inital velocity of 110 ft per second. The height h(x) of the rocket at any time, x (in seconds) is given by the function h(x)= -16x^2+110x. Approximatley what is the maxium height of the rocket
Click here to see answer by lwsshak3(11628)

Question 697270: simplify
my work:
find a common denominator= 7x
get

cross out the two (x-7) and you are left with x+7.
I'm not sure if my work is correct.
Click here to see answer by ptaylor(2198)

Question 697196: given f(x)=x^2-1 for x <_ 0 , what is f^-1(x)
Click here to see answer by lynnlo(4176)

Question 697187: 42. What is the equation of variation if y varies inversely to c when y=.625 & x=8
Click here to see answer by lynnlo(4176)

Question 697187: 42. What is the equation of variation if y varies inversely to c when y=.625 & x=8
Click here to see answer by MathTherapy(10552)

Question 697387: What's the answer?
(5-2i)(3+4i)
Click here to see answer by josmiceli(19441)

Question 697391: Whats the answer ?
5+2i/3-i
Click here to see answer by Alan3354(69443)

Question 697390: 2-3i/1+i
Click here to see answer by KMST(5328)

Question 697386: What's the answer?
(1-2i)/(3i)
Click here to see answer by Positive_EV(69)

Question 697458: 59. A ball is thrown into the air. The path of the ball is described by the equations h(t)=-16t^2+80t+5, where h is the height of the ball after t seconds. Using this equation what does the 5 represent
Click here to see answer by nerdybill(7384)

Question 697460: A scientist has 200 grams of a substance which has half-life of 5yrs. The graph of its decay function is represented by the equation y=ab^x where x is the number of 15 yr periods. What are the values of a and b
Click here to see answer by stanbon(75887)

Question 697480: The expression is equivalent to
my work:
*=
final answer:
I'm not sure if my work is right.
Click here to see answer by jim_thompson5910(35256)

Question 697388: (3-2sqrt(-18)-(2+3sqrt(-8)

Click here to see answer by mananth(16946)

Question 697149: The potential difference across a circuit is given by the complex number
V = 40 + j35 volts
and the current is given by the complex number
I = 6 + j3 amps
a) sketch the appropriate phasors on an Argand diagram.
b) find the phase difference (i.e. the angle Φ )between the phasors for voltage
V and the current I.
c) Find the power (watts) given that P = V x I x cos Φ
Click here to see answer by KMST(5328)

Question 697540: One computer can process the payroll for a company in 5hours. A new computer can process it in 3 hours. Which equation could be used to find how long it will take to process the payroll if both computers are used.
Click here to see answer by nerdybill(7384)

Question 697541: A group of friends planned a trip and chartered a bus for 300$. When 3 more friends decided to join the trip, the cost for the bus was $5 less per person. In all, how many people made the trip.
Click here to see answer by Stitch(470)

Question 697551: What is the maximum y value of V(x)=x(x-10)(x-8)
Click here to see answer by Alan3354(69443)

Question 697558: which equations represents all numbers whose distance from zero is 7 units.
Click here to see answer by Edwin McCravy(20056)

Question 697562: For y=2|2-3x|-3, what are the values of x satisfy y > 5
Click here to see answer by Alan3354(69443)

Question 697596: whatis theDomain of;
Log(2i-z)
Log(z-4)
Click here to see answer by MathLover1(20850)

Question 697491: (3+4i)/(2+3i)
Click here to see answer by unlockmath(1688)

Question 697552: what is the equation that has zeros at 4 and 2+5i
Click here to see answer by nerdybill(7384)

Question 697544: In 5 min a conveyor belt moves 400 pounds of cans to a storage area. A smaller belt moves the same quantity of cans the same distance in 9 minutes. How long does it take if belts are used
Click here to see answer by josmiceli(19441)

Question 697675: What is the simplified form of (2+sqrt(3)) / (1-sqrt(3))
Click here to see answer by DrBeeee(684)

Question 697677: What is the binomial factor of p^4-6p^3+7p^2+7p-3
Click here to see answer by Edwin McCravy(20056)

Question 697987: 1 2
_ + _
a b
________
a
Click here to see answer by MathLover1(20850)

Question 698041: 2i(4+5i)(4-5i)
______________
4+i
Click here to see answer by ankor@dixie-net.com(22740)

Question 698065: what is the sum of the solution |3-6x|=15
Click here to see answer by mathbird(71)

Question 698121: 3-5i/5+2i
Click here to see answer by lynnlo(4176)

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