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anonymous
 5 years ago
please help......
((2z8)/(z^24))/((z^2+6z+8)/(z4))
simplify completly..... show work
anonymous
 5 years ago
please help...... ((2z8)/(z^24))/((z^2+6z+8)/(z4)) simplify completly..... show work

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0do you know how to do this?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1First Flip bottom fraction and Multiply Then factor and things will cancel \[2z8 = 2(z4)\] \[z^{2}4 = (z+2)(z2)\] \[z^{2}+6z+8=(z+4)(z+2)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wow i forgot that the things cancelled.... okay what did you get for your answer?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0im not sure how you did that can you show me?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1\[=\frac{2(z4)(z4)}{(z+2)(z+2)(z2)(z+4)}\] hmm maybe they dont cancel in this case..haha

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea and i think you factored wrong.....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait how did you factor that?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1no everything is factored correctly

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did you do it then? i got something completly different but i thrust what you got....

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1are you sure its division and not multiplying the 2 fractions ??

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you flip the second one and change to multi.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and then can you show me what you did im completly lost

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1oh for the factoring part. well for 2z 8 i just pulled out a 2 from each term 2(z4) = 2z  8

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1For z^2  4, find factors of 4 that add up to 0 since there is no "z" term 2*2 = 4 and 2+2=0 (z2)(z+2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wow thats sooo much easier now thanks :) can you help me with a couple more?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1z^2 +6z +8 same thing, look for factors of 8 that add up to 6 4*2 =8 and 4+2 =6 (z+4)(z+2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay....... ((4)/(2x+1))((3)/(2x))=

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you show me step by step please?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1adding/subtracting fractions you need to get common denominator 2x+1 cannot be factored 2x cannot be factored common denominator is 2x(2x+1) just like adding 1/2 + 1/3, common denominator is 2*3=6

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1now change numerators \[\frac{4}{2x+1} = \frac{(2x)(4)}{2x(2x+1)}\] \[\frac{3}{2x} = \frac{3(2x+1)}{2x(2x+1)}\] combine into 1 fraction \[\frac{(2x)(4)  3(2x+1)}{2x(2x+1)}\]

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1multiply and add like terms on top \[\frac{8x 6x 3}{2x(2x+1)} = \frac{2x3}{2x(2x+1)}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you help me with this one? ((m+5)/(2m^22))+((3)/(1m))+((5)/(2m+2))

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1factor all the denominators 2m^2 2 = 2(m1)(m+1) 1m = (m1) 2m+2 = 2(m+1) common denominator will include everything w/out repeats 2(m1)(m+1)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay i can do it from there can you help me with this one? ((n+1)(2/n))/((n+4)+(4/n))

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1\[=\frac{(m+5)+(2(m+1))(3) + ((m1))(5)}{2(m+1)(m1)}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you help me with this one? please???? ((n+1)(2/n))/((n+4)+(4/n))

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1ok combine fractions on top and bottom, then flip and multiply

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1common denominator will just be n

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1answer should be (n1)/(n+2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yup that what i got are you good with summation notation and geometric means/sequences?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay.... wellthe question is... insert four geometirc means between 7 and 224

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0nevermind i figured that one out......

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\sum_{n=1}^{50}(1/4)(n+2)\]

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1\[=\frac{1}{4}\sum_{n=1}^{50}n+2 = \frac{1}{4}(\sum_{n=1}^{50}n +\sum_{n=1}^{50}2)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0im stuck on this one.. which term of the geometric sequence 243, 81, 27, . . . is (1/9)?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did you figure that out?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1haha tried proving it using geometric sequence formula but got stuck when taking log anyway just continue the sequence of dividing by 3 and flipping the sign

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0o so you flip the sign every other time? could you help me with this one? there are seven houses; in each are seven cats. each cat kills seven mice. each mouse would hvae eaten seven ears of wheat. each ear of wheat prodece seven measures of grain. how much grain is saved? i got 16807 grains saved

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1correct 7^3 mice 7^4 ears 7^5 grain

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok that equals 16807 which is what i got:)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay change the repeating decimal .25 (sopposto have the bar above the 25) to an equivlant common fraction

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1?? why do you need to know that some fraction close to proportional of 1/4

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dontk know its on my homework though ydo you know what it'd be?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1haha i just guessed and put it in my calculator 25/99

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wow your good.... do you know how i would show that? just say guess and check? we turn this in for a grade thats why im asking

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1actually any n/99 = .nnnnnn

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in a certain credit union, money left on deposit for one year earns 4% intrest at the end ot the year. if you invested $100 at the beginning of each year in this credit union and did NOT withdraw the intrest due at the end of the year, how much would you hvae on deposit at the end of the tenth year?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1=100(1.04 + 1.04^2+... +1.04^10) need sum of geometric sequence sum = a(1r^n)/(1r) sum = 1.04(11.04^10)/(11.04)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so when you get your answer are you sopposto multiply it by 100?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay just stay right there i have a couple more i just have to go and get another pencil mine just broke

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok im back i dont know what formula you used

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1for finding sum of geometric sequence

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea but can you tell me it with all of the variable in it please? i need to look and see if i have that one

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1\[s _{n} = \frac{a _{1}(1r ^{n})}{1r}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i only have SofN=(Asub1Asub1R^n)/(1R) and... SofN=(Asub1AsubnR)/(1R) sooo.. which one should i use, and what numbers?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1ues the first one, only difference is mine has factored out the a1 on top

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1a1 = first term r = common ratio

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ummmm... i should get the same answer right? i think im doing someting wrong im getting 1200.610712

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.11(1.04)^10 = .4802 1.04(.4802) = .49945 .49945/(11.04) = 12.48635

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait shouldnt it be..... (100100(1.04)^10)/(11.04)

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1no im leaving the 100 on outside of sequence then we multiply the sum by 100

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but when i do it shouldnt i be getting the same thing? and i dont understand how your doing it

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1ok if you include the 100 then sequence will look like this =100(1.04) + 100(1.04^2) +...+100(1.04^10) a1 = 100(1.04) r = 1.04 sn = 100(1.04)(11.04^10)/(11.04)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but my equation is Sn=(A1A1R^n)/(1R)

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1same thing factor out the A1

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you do it my way when you factor out the A1 it confuses me

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0....^because when you factor....

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1ok Sn = 100(1.04) 100(1.04)(1.04^10) / (11.04)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok ... a ball which rolls off a penthouse terrace falls 16 feet the first second, 48 feet the next second, and 80 feet the third second. if it continues to fall in this mannor, how far does it fall in the seventh second?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1i believe this models a parabola of y=16x^2 the change in y from 6 to 7 is how far it falls in 7th second 16(7^2)  16(6^2) = 16(4936) = 16(13) = 208

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a rubber ball dropped 40 feet rebounds on each bounce 2/5 of the distance from which it fell. how far will it travel before comming to a rest?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1geometric sequence 40+40(2/5)+ 40(2/5)^2 +... looks like an infinite sequence before you get 0 lim n>inf (2/5)^n = 0 so in formula r^n = 0 a1=40 r=2/5 sum = 40  40(0) / 1(2/5) sum = 40 /3/5 = 200/3 = 66.666

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what formula is that?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1same as before sum of geometric sequence

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no but which one of mine because yours confuse me

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1\[s _{n}=\frac{a _{1}a _{1}r^{n}}{1r}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what would i put for n?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0would my answer be iin feet?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what does the graph for ..... look like? cubic with one real solution and two complex solutions look like? cubic with no real solutions? quartic with no real solutions? a quadratic with one real solution and one complex solution? a quartic with two real solutions and two complex solutions? a quadratic with no real solutions? a quartic with no real solutions? a cubic with 3 real solutions, but one is a double root? a quartic with for real roots, but both are double roots?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1umm number of real solutions represents number of x_intercepts cubic with no real solutions does not exist i believe
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