Tutors Answer Your Questions about Complex Numbers (FREE)
Question 94100: Hello
I need some assistance with this one Ta. It is asking me to: Write a full solution for the following:
A journey takes 1.5 hours longer at 50kph than it does at 75kph. Find the length of the journey.
Thank you
Dave
Click here to see answer by checkley75(3666)  |
Question 94121: Any help would be really appreciated please. Ta
This is the last of my problems for now, I am really stuck. I do not know how to get the x and the y onto the same side with the = at the end. Ta
I have solve for X and Y
y=9-3x
x=8-2y
Click here to see answer by checkley75(3666) |
Question 94817: I have a worded problem that is giving me trouble and I would really appreciate if someone could assist me in making sense of it all. It goes like this.
Four brothers are born in successive intervals of three years. The eldest is twice the age of the youngest. What is the age of their father, who is eighteen years older than the eldest son?
I have given this a go, but all I am able to come up with is this
B1= Brother 1 =9
B2= Brother 2 =12
B3=Brother 3 =15
B4=Brother 4 =18
F=Father =36
B1+B2+3+B3+6B4+9
4B=+18
F=2B4+9
My problem is even though I think I can get an answer to this problem in my head. I am unable to sort it into an algebraic equation, which is what I desperately need. Any help would be greatly appreciated. Thank you so much.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 95103: Hi can you help me with the following problem?
Write the answer in standard form of scientific notation correctly rounded to 2 figures.
(5.46 x 10^-8) ( 9.77 x 10^-8)
______________________________
(4.07 x 10^3) ( 8.37 x 10^3)
Thanks.
:)
Click here to see answer by checkley71(8403) |
Question 95093: Hi. i WAS WONDEIRNG IF YOU COULD HELP ME WITH THE PROBLEM:
Write the answer in standard form of scientific notation correctly rounded to two figures.
(8.69 x 10^-9) (5.20 x 10^6)
____________________________
(9.54 x 10^1) (3.87 x 10^-1)
Thanks.
Click here to see answer by stanbon(75887) |
Question 95304: Hi can you help me with the following problem?
Write the answer in standard form of scientific notation correctly rounded to 2 figures.
(9.79 x 10^2) ( 4.06 x 10^-7)
______________________________
(8.33 x 10^-7) ( 2.59 x 10^4)
Thanks.
:).
Click here to see answer by checkley71(8403) |
Question 95502: Solve the equation in the complex number system.
x^3-8=0
This one is stumping me. It doesn't appear that it can be factored out so I tried to use (x-1)=(x^2+X+8). I still can not come up with an answer. Any help would be greatly appreciated.
Click here to see answer by stanbon(75887) |
Question 95588: I'm sorry! Can you help me this problems. I have been study about Complex Numbers i just studying at hight scholl .But i can't find this problem so i want you help me in this 2+3i, 4+3i,in form r(cosQ^+isinQ^).Thank you.
Click here to see answer by stanbon(75887) |
Question 96475: The problem is i to the -10th power. I don't even know how to begin to start. The example in the book of i to the -3rd=i to the -4 x i and I don't understand why. Can you give me another example that might work like this one?
Click here to see answer by longjonsilver(2297)  |
Question 97665: -2^3-1/-2^-2(x+2)-3x=-2^0(-2x^0-4)
This is how I worked it out at one point but I cant get to seem to get to the answer of 6 (which is in the back of the book) Im confused, I though I understood these.
-8-4x-8-3x=1+4
-16-7x=5
+16 +16
___ ___
0 21
-7x=21
Click here to see answer by stanbon(75887) |
Question 98546: the two longest sides of a pentagon are each three times as long as the shortest side. the other sides are each 8 meters longer than the shortest side. find the length of each side if the perimeter is 79 meters.
Click here to see answer by stanbon(75887) |
|
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, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380
|
