Questions on Algebra: Complex Numbers answered by real tutors!

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Question 107898: how do you work out 0.04 how many times does 0.6 go in to it

Click here to see answer by stanbon(75887)

Question 108152: (7+2i)-(3+3i)
Click here to see answer by Fombitz(32388)

Question 108151: (3-2i)+(1+i)
Click here to see answer by MathLover1(20850)

Question 108150: (5+3i)+(2+4i)
Click here to see answer by MathLover1(20850)

Question 108428: (8-6i)/3i
(simplify)
Click here to see answer by checkley71(8403)

Question 106935: whta is a complex number?
Click here to see answer by Demi5000000(8)

Question 109076: 12x3-19x2-25x-10 divided by 4x+3 =
Click here to see answer by Demi5000000(8)

Question 109087: Please, can any one help me solve this difficult problem?? I would deeply appreciate it. Thank you!!
4(x+2)^2+320=0

Click here to see answer by edjones(8007)

Question 109239: i squared[(2+8i)(5+2i)
Click here to see answer by edjones(8007)

Question 109208: √8-x+6=4
Click here to see answer by ankor@dixie-net.com(22740)

Question 109433: I would like assitance with these problems if available and would appreciate you.
Describe the transformations onthe following graph of f(x)= e^x. State the placement of the horizontal asymptote and y-intercept after the transformation.
a. g(x)=e^x -2
Description of transformation:
Horizontal asymptote:
y-intercept in (x,y) form
an the same b. h(x)=-e^x

3) Describe the tranformations onthe following graph of f(x)=log(x)
g(x)=log(x-3)
Description of transformation:
Vertical asymptote:
x-intercept in (x,y) form:
b) g(x)=log(-x)
Description of transformation:
Vertical asymptote:
x-intercept in (x.y) form
I just get confuse on the formulas

Click here to see answer by stanbon(75887)

Question 109206: √8-x+6=4
Click here to see answer by ankor@dixie-net.com(22740)

Question 109690: Solve system by elimination
y-7=x
x+y=13
Click here to see answer by solver91311(24713)

Question 109686: Solve system by elimination
1/2x+y=22
2x+4y=11
Click here to see answer by elima(1433)

Question 109955: I need help!! How would you solve using a+bi?
Click here to see answer by ankor@dixie-net.com(22740)

Question 110454: I am absolutely speechless with this problem. I have asked everyone I know and looked for help and nothing. Please help me.
The problem is:
V=(pi)R^2h-(pi)r^2h Solve for r^2
Click here to see answer by stanbon(75887)

Question 110586: Someone invested $24,00 at 8% and the rest at 7.2%. How much did they invest at each same rate if their income from 8% is 2/3 that of 7.2%
Click here to see answer by josmiceli(19441)

Question 110653: Graph the system and solve: y=2^(x-4) +1
and y=2sqrt(x)
i graphed the system but i do not know how to solve it.

Click here to see answer by josmiceli(19441)

Question 110652: Graph the system and solve: y=2^(x-4) +1
and y=2sqrt(x)
i graphed the system but i do not know how to solve it.

Click here to see answer by stanbon(75887)

Question 110761: Can you figure this out for me!
1. Factor
-9w+9u-tw-+ut
2. Factor
6b^4/5c^4d^2/3ab^3/15c^2d
3. x sqrt.80xw^2+5wsqrt.5x^3
Click here to see answer by stanbon(75887)

Question 110871: Simplify and write your answer in the standard complex form:
3 + 4i + 1 / 3 + 4i
A little stumpled here as the instructor really hasn't presented this in a way I can understand. Appreciate any assistance/guidance you can provide.

Click here to see answer by MathLover1(20850)

Question 111092: please find : absolute z+4z*
Click here to see answer by Fombitz(32388)

Question 111394: would you please solve the following equation :
xi/1-yi=3x+4i/3x+4y , where x & y are real .
thank you in advance
Click here to see answer by MathLover1(20850)

Question 111943: divide
8+2i/3+4i
Click here to see answer by jim_thompson5910(35256)

Question 112257: given that 1+3i is a zero of f(x)= x^4-2x^3+5x^2+10x-50 find all zeros and write a linear factorization
Click here to see answer by scott8148(6628)

Question 112595: Perform the indatcated operations. Write answer in the form a + bi
4 + 3i over 2 + 3i
Click here to see answer by jim_thompson5910(35256)

Question 113001: Evaluate the quadratic function y=x^2-2x+2 at x=1+i
Click here to see answer by jim_thompson5910(35256)

Question 113127: how would you work 3 - i over 2 - i
Click here to see answer by stanbon(75887)

Question 113126: help!
how would you work out 2- 4i over 1+ 3i
Click here to see answer by stanbon(75887)

Question 113450: Solve by completeting the square:

3x (squared) - 18x + 24 = 18 (not sure how to get it to type the squared
Click here to see answer by jim_thompson5910(35256)

Question 113450: Solve by completeting the square:

3x (squared) - 18x + 24 = 18 (not sure how to get it to type the squared
Click here to see answer by josmiceli(19441)

Question 113449: I need help with my sons Algebra II, it has been many years...
Solve the inequality algebraically

x 2 -3x-4 < 0 (that is x squared)
Click here to see answer by MathLover1(20850)

Question 113449: I need help with my sons Algebra II, it has been many years...
Solve the inequality algebraically

x 2 -3x-4 < 0 (that is x squared)
Click here to see answer by josmiceli(19441)

Question 113681: Subtract the complex numbers: (3 + 5i) - (1-7i).
Click here to see answer by Adam(64)

Question 113858: Perform the operation and simplify, expressing answer with a positive exonent in lowest terms: (x^2/3)(x^1/5).
Click here to see answer by edjones(8007)

Question 113906: Can I take average of a complex number and a real number?
i.e. [(a+bi)+c]/2=?
Click here to see answer by jim_thompson5910(35256)

Question 113857: Factor completely: x^2 - 8x + 16.
Click here to see answer by jim_thompson5910(35256)

Question 113856: Factor: 12a^2 + 5a - 2.
Click here to see answer by jim_thompson5910(35256)

Question 113855: Combine the complex numbers: (7-i) + (-3 + 4i).
Click here to see answer by jim_thompson5910(35256)

Question 114760: (11x-5)^2=70
Click here to see answer by jim_thompson5910(35256)

Question 113859: Solve the following: x^3 + 2x^2 = -5x
Click here to see answer by jim_thompson5910(35256)

Question 113860: Solve the equation: 2x^2 - 3x = 0
Click here to see answer by jim_thompson5910(35256)

Question 114974: Please help me with this:
Write an answer in the a = bi form
(3 + i) (2+ 3i)
Click here to see answer by HyperBrain(694)

Question 115108: Find the y-intercept,the equation of the axis of symmetry, and the x-coordinate of the vertex for f(x)=3x^2-12x+4. Then graph the function by making a table of values.
Click here to see answer by MathLover1(20850)

Question 114325: x^2+3=-24
Click here to see answer by solver91311(24713)

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