Questions on Algebra: Complex Numbers answered by real tutors!

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Algebra: Complex Numbers

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Question 44307: if f(4)=0 and f(6)=6, which of the following could represent f(x)?
Click here to see answer by venugopalramana(3286)

Question 44306: if f(4)=0 and f(6)=6, which of the following could represent f(x)?
Click here to see answer by venugopalramana(3286)

Question 44334: solve log(2x+3) = log(4x)+ 2, for x giving your answer correct to 3 significant figures
Click here to see answer by fractalier(1804)

Question 44492: I need to know the real and imaginary parts of the complex number.
(5+i)/(2-i)
Click here to see answer by venugopalramana(3286)

Question 44491: I need to know the real and imaginary parts of the complex number.
(17+2i)i^47. All I know is that I need to work the problem out before knowing what each part is.
Click here to see answer by venugopalramana(3286)

Question 44506: Find the product
(3a+8b)(-4a+7b)
Click here to see answer by atif.muhammad(135)

Question 44627: Factor out the greatest common factor. Simplify the factors, if possible.
3x(5x+6)-4(5x+6)
The * should not be after the -4. I can't get rid of it. THanks
Click here to see answer by stanbon(26259)

Question 44623: Divide

Click here to see answer by tutorcecilia(2042)

Question 44635: Please show me how to work complex number patterns

n|2|4|6|8|
1
- n + 2
2
Click here to see answer by Nate(3495)

Question 44624: Divide
/
Click here to see answer by pvaka(23)

Question 44674: Find all solutions by factoring.

Click here to see answer by adamchapman(301)

Question 44719: Given that s = 1.59t(1 - 3v), obtain the value of v when s = 3.52 and t = 21.56
Click here to see answer by adamchapman(301)

Question 44803: If the amplitude ratio, N in decibels, of an electrical system is given by the formula N = 10 log ( Po )
Pi
and the power is given P = V^2
R
Show that for matched input and output resistance the output voltage Vo is related to the input voltage Vi, by
Vo = Vi 10 ( n )
20

Click here to see answer by stanbon(26259)

Question 44990: Factor out the variable that is raised to the smaller exponent

Click here to see answer by AnlytcPhil(958)

Question 45017: Make y the subject of the formula
E = P ( 1 - e(y-1))
Click here to see answer by adamchapman(301)

Question 45097: Please find all solutions by factoring

Click here to see answer by Nate(3495)

Question 45195: Please perform the indicated operation and expression lowest terms. Thanks

Click here to see answer by checkley71(8405)

Question 45200: Simplify the complex fraction. Thanks

Click here to see answer by rapaljer(3620)

Question 45198: Add or subtract as indicated. Write the answer in lowest terms. THanks for any help.

Click here to see answer by Nate(3495)

Question 45460: Please find the product
(3a+8b)(-4a+7b)
Click here to see answer by checkley71(8405)

Question 45464: Divide

Click here to see answer by Nate(3495)

Question 45479: Find the product

Click here to see answer by jake_6233(74)

Question 45481: Add or subtract as indicated

Click here to see answer by Nate(3495)

Question 45480: Please find the product

The * is not suppose to be between the 1)*(x
Click here to see answer by Nate(3495)

Question 45477: Please divide

Click here to see answer by Nate(3495)

Question 45614: Find each product
(3+x+y)(-3+x-y)
Click here to see answer by stanbon(26259)

Question 45821: Factor by grouping

Click here to see answer by checkley71(8405)

Question 45763: OK, I need to find out why 3 divided by 4 + Pie/ 2Pie is supposed to be equal to 2/3.
This is a complex fraction. Three (3) is divided by the fraction 4 plus Pie/ 2 x Pie
Click here to see answer by Fermat(127)

Question 45830: Hello,
I am very confused with this problem and could really use some help:
For what value of "a" does the trinomial y = (a - 1)x^2 + 2ax + (a - 3) is maximum for x = 1?
Thanks in advance,
Louis
Click here to see answer by longjonsilver(2297)

Question 45894: Use the sqare root property to solve.
1.) y2=200
2.) (x+8)^2=25
Click here to see answer by Nate(3495)

Question 45892: Write in the form of a+bi
(7-2i) (7+2i)
Click here to see answer by Nate(3495)

Question 45893: Write in the form of a+bi
Division
numerator 4-3i
denominator 4+2i
Click here to see answer by Nate(3495)

Question 45891: Simplify radical expression.

Sqare root of -175
Click here to see answer by Nate(3495)

Question 46040: sqrt -81 multiply by sqrt-49

Thank you for your help and time.
Click here to see answer by fractalier(1804)

Question 46139: 34. Find two consecutive integers such that the sum of 2 times the first integer and 7 times second integer is 88.

Click here to see answer by Earlsdon(4898)

Question 46145: 44. Subtract p – 5 from 3p – 6.

Click here to see answer by Earlsdon(4898)

Question 46144: Add 8a – 6 and 4a + 5.
Click here to see answer by monica17(5)

Question 46403: x^2+18x+63=0
Use the quadriatic formula.
Thank you for your help and time!!!!
Click here to see answer by tutorcecilia(2042)

Question 46529: 3. One day, the temperature at 2:00 A.M. was 43°F, and by 3:00 P.M. the temperature was 56°F. What was the hourly rate of temperature change?
A) 3°F/h B) 2°F/h C) 0°F/h D) 1°F/h

Click here to see answer by wuwei96815(245)

Question 46577: Add of subtract as indicated. Write answers in lowest terms.

Click here to see answer by Nate(3495)

Question 46764: If the first and third of three consecutive odd integers are added together, the result is 63 less than five times the second integer. Find the third integer.
Click here to see answer by Earlsdon(4898)

Question 46792: Multiply
(8+9i)(7+6i)
Click here to see answer by tutorcecilia(2042)

Question 47067This question is from textbook Intermediate Algebra
: Divide and simplify to the form a+bi.
numerator: -4+2i
Denominator: y-i
I got: -4+2i/y-i * i/i= -4+2i^2/y-i^2= -4+2/y+1= -2y-1. Is this the right answer? This is from a take home test.This question is from textbook Intermediate Algebra

Click here to see answer by consc198(59)

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