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Tutors Answer Your Questions about Inverses (FREE)
Question 23017: I need help on.....
on one of my homework problems i don't understand how to write a equation in slope-intercept form.... like for example one of my questions says
it shows a chart
Contains- Is perpendicular to.....
(3,-5) 5x+2y=10
i'm not asking for the answer, im just wondering what the steps are to solve the problem.
please e-mail me back soon
thanks
Click here to see answer by Earlsdon(6287)  |
Question 25274: 1) Let R and S be rings and define R x S = {(r,s):rES} to be the set of all pairs (r,s) with r ER and s ES. Define furthermore the addition and multiplication in R x S componentwise by (r1,s1)+(r2,s2)=(r1+r2,s1+s2) and (r1,s1).(r2,s2)=(r1.r2,s1.s2)
a) show that R x S is a ring again.
b) show that if R and S both have an identity element then so does R x S.
c) show that R x S has non-zero, non-regular elements if R and S both are different from the zero-ring.
d) Can R x S ever be a field? Justify your answer!
Click here to see answer by kev82(148) |
Question 26155: I know this isn't on this certian subject but it was the rang of questions i could find. I'm having trouble learning/understanding indirect variations. Can someone expain it for me. here is a problem: y=9, x=1, x=?, and y=10. Please help me with this problem!! thanks
kayla
Click here to see answer by stanbon(57226) |
Question 25458: (a)Find the (multiplicative) inverse of the complex number (3-i)^2 in the form a+ib, a,b belongs to the reals(R).
(b) solve the equation (((1+i)^5)x)= ((1-i)^3) in the ring C of complex numbers (also as number of the form a+ib, a,b belong to the reals(R).
Click here to see answer by venugopalramana(3286) |
Question 34403: 3 friends share a fullbag of jellybeans. Mike took 1/3 of the jellybeans in the full bag ,Zac took 1/2 of the jellybeans in the fullbag and Kary took what was left. Mike ate 1/2 of his jellybeans, Zac ate 1/3 of his jellybeans and Kary ate all of hers. If Mike & zac now have a total of 45 jellybeans together,
howmany jellybeans did Kary eat?
Click here to see answer by tmarienatree(17) |
Question 34472: looking for some help. I am taking Introductory Algebra and I posted this last night, but I think the answer is at a higher level algebra.
(t^3-t^2+t-1)divided by(t+1)
the only way I can divide any thing into it is to use (t-1) so could it be N.S.
thanks
Click here to see answer by stanbon(57226) |
Question 35058: Hello,
My name is Kristin and my time for the college placement exam is approaching and I need help!!!!!so please help b/c I keep getting different answers that do not appear in the multiple choice answers.
question: (x^2-4/5x) X (30/3x-6=)
multiple choice ans:
a. 4
b. 2(x+2)
c. 2(x-2)/x
d.2(x+2)/x
e. 4/3
THANK YOU IN ADVANCE,
KRISTIN
Click here to see answer by longjonsilver(2297)  |
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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
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