Questions on Algebra: Complex Numbers answered by real tutors!

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Question 1047588: 3(y+5)=�2y .... What is the value of y
Click here to see answer by Fombitz(32388)

Question 1047598: An arrow is shot straight up in the air with an initial speed of 220 ft/s. If on striking the ground it embeds itself 2.00 in into the ground, find the magnitude of the acceleration (assumed constant) required to stop the arrow, in units of feet/second^2.
Click here to see answer by rothauserc(4718)

Question 1047648: perform the operation and write the result in standard form.
1+i/i - 5/8-i

Click here to see answer by solver91311(24713)

Question 1047694: If a body travels half its total path in the last 1.70 s of its fall from rest, find the total time of its fall (in seconds).
Click here to see answer by Theo(13342)

Question 1047597: If a body travels half its total path in the last 1.70 s of its fall from rest, find the total time of its fall (in seconds).
Click here to see answer by ikleyn(52747)

Question 1047699: step 1...............write down any number................n
step 2...............add 2............................n+2
step 3................multiply by 3...................3n+2
Click here to see answer by Alan3354(69443)

Question 1048670: Put in the simplest form:
(1) 5/1-2i
(2) 2+3i/2-3i
Click here to see answer by josmiceli(19441)

Question 1048725: Find the derivatives of the following functions.
1. f(t) = t^11
2. g(t) = 6√t
3. g(w) = 5/6w^12
4. Let f(t) = t^3 − 27t + 5
a. Find the value of t for which the slope of the curve y = f(t) is 0.
b. Find the value of t for which the slope of the curve y = f(t) is 2t.
5. Find f^0(x), f^00(x), f^000(x) for the following function.
f(x) = 3x^12 + 4x^3

Click here to see answer by Alan3354(69443)

Question 1049139: (6-3i)+(5+4i)
Write the expression as a
Complex number in stAndard form
Click here to see answer by josgarithmetic(39613)

Question 1049290: 2+9i/9+5i
Click here to see answer by stanbon(75887)

Question 1049290: 2+9i/9+5i
Click here to see answer by ikleyn(52747)

Question 1049290: 2+9i/9+5i
Click here to see answer by MathTherapy(10549)

Question 1049622: One maid can clean the house in 3 hours. Another maid can do the job in 8 hours. How long will it take them to do the job working together?
Click here to see answer by stanbon(75887)

Question 1049770: 1/6-i
Click here to see answer by Alan3354(69443)

Question 1049775: find the complex conjugate number. then find the product of the complex number and its complex conjugate. 12i

Click here to see answer by josmiceli(19441)

Question 1049876: 2a-3/2a+5=2/2a+3
Click here to see answer by ikleyn(52747)

Question 1049874: 6r^2=13r-5
Click here to see answer by srinivas.g(540)

Question 1049874: 6r^2=13r-5
Click here to see answer by ewatrrr(24785)

Question 1049873: 4a^2=4a+5
Click here to see answer by srinivas.g(540)

Question 1049884: (x + 2yi)^2 = xi
Click here to see answer by advanced_Learner(501)

Question 1049960: Solve this system of equations using substitution.
a + b + c = 180
----------b = 3a
----------c = 5a
Click here to see answer by MathLover1(20849)

Question 1049960: Solve this system of equations using substitution.
a + b + c = 180
----------b = 3a
----------c = 5a
Click here to see answer by stanbon(75887)

Question 1050116: Divide -3x^3 - 2x^2 - x - 2 by x � 2.
A. -3x^2 - 8x - 17
B. -3x^2 + 4x + 15
C. -3x^2 - 8x - 17, R �36
D. -3x^2 + 4x + 15, R 32
Click here to see answer by ewatrrr(24785)

Question 1050150: Sally has 3 more nickels than quarters. The total value of these coins is $2.85. How many of each coin does sally have?
Click here to see answer by advanced_Learner(501)

Question 1050267: What is a quartic function with only the two real zeros given?
x = -4 and x = -1

A. y = x^4 + 5x^3 + 5x^2 + 5x + 4
B. y = x^4 - 5x^3 - 5x^2 - 5x - 4
C. y = -x^4 + 5x^3 + 5x^2 + 5x + 4
D. y = x^4 + 5x^3 + 5x^2 + 5x - 5
Click here to see answer by ewatrrr(24785)

Question 1050305: my question is that write in terms of iota
1.squareroot -iota b
2.squareroot -5
Click here to see answer by stanbon(75887)

Question 1050348: Solve this system of equations using the addition method. 6a - 5b = 92a + 5b = 23
Click here to see answer by Alan3354(69443)

Question 1050550: −3(i/2) in standard form...we never went over something like this in class and the book is useless.
Thank You for your time and effort
Click here to see answer by MathLover1(20849)

Question 1050567: If aΔb means when a < b and 2b - a when , evaluate (3Δ9)Δ5.
Click here to see answer by Edwin McCravy(20054)

Question 1050742: Prove that Re(z)=(z+z')/2
Click here to see answer by rothauserc(4718)

Question 1050742: Prove that Re(z)=(z+z')/2
Click here to see answer by Edwin McCravy(20054)

Question 1050734: (2+3i)(3-2i)
Click here to see answer by Alan3354(69443)

Question 1050734: (2+3i)(3-2i)
Click here to see answer by ikleyn(52747)

Question 1050903: I'm not quite sure what kind of category this question would fall under, but here it goes. I really hope I can receive some help.
"An object is launched at 20 m/s from a height of 65 m. The equation for the height 9H) in terms of time (t) is given by h(t)-4.9t^2+20t+65. What is the object's maximum height?
Click here to see answer by Alan3354(69443)

Question 1051399: Let f(x) = -5x - 4 and g(x) = 6x - 7. Find f(x) + g(x)
A. x - 11
B. -11x = 3b
C. -11x - 11

Click here to see answer by Alan3354(69443)

Question 1051404: Let f(x) = -3x - 4 and g(x) = 2x - 6. Find
A. 28
C. 17
D. 56
I know B is wrong
Click here to see answer by ewatrrr(24785)

Question 1051402: Let f(x) = -�2x �- 7 and g(x) = �-4x + 3. Find (f o g)(-�5)

A.
-53
C.
3
D.
-9
I Know B. is wrong
Click here to see answer by ewatrrr(24785)

Question 1052056: $7,000 dollars 10 years from now at 7% is worth how much today?
Answer = 3558
Click here to see answer by addingup(3677)

Question 1052056: $7,000 dollars 10 years from now at 7% is worth how much today?
Answer = 3558
Click here to see answer by MathTherapy(10549)

Question 1052057: How much would you have to put in the bank today at 5% to accumulate $1,000 by next year?
Answer: 392
If you double your money in 5 years, what interest rate did you earn?
Answer = 14.87
If you triple your money in 10 years, what interest rate did you earn?
Answer = 11.60
I have to insert all of this into my BAII Plus calculator.
Click here to see answer by addingup(3677)

Question 1052048: You have $100,000 to invest at 4% interest. If you wish to withdraw equal annual payments for 4 years, how much could you withdraw each year and leave $0 in the investment account?
Answer = $27548
Click here to see answer by MathTherapy(10549)

Question 1052452: Find three consecutive internees such that twice the largest is two less than three times the smallest.
Click here to see answer by josgarithmetic(39613)

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