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CIS

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Pre-cal
The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the form r cis(theta), where 0 <= theta < 360. Find theta in degrees. I need help.

Precal
The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the form r cis(theta), where 0 <= theta < 360. Find theta in degrees. @Damon I didn't understand your reply to my post. Could you please explain it to me?

complex numbers!
-2-2i in polar form = 2.8 cis 2.35?? -3+4i polar form = 5 cis 2.2??? 1 - sqaureroot(3i) polar form = 2 cis 1.04?? What is cis? never mind I have the right answers. polar form z = r (cos O + i sin O ) is also written in an abbreviated form z = r cis O cos + sin = cis

ORGANIC CHEMISTRY
how will I be able to form the cis,trans and the cis,cis isomers of dibenzalacetone?

complex numbers
115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* 115 cis (45 + 120 + 120) = 285*?? WHat is cis? cos + isin OH LOL!!!Wish I could help!LOL!But...PLease help me!!:(

organic chemistry
is 2-pentene a cis or trans? and why? Cis- atleast 2 bulky grps.. Trans-3-4 bulky grps.. cis and trans must contain a double bond. i don't know if its a cis or trans so please enlighten me

complex number ~
thanks BOB =) *HUGS* 115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* or is it (-75*) 115 cis (45 + 120 + 120) = 285*?? or (-195*)?? It's really Matthew!I found out what it is but I will help you when you help me plz!!! Exactly right...

equation complex number
z^4 + 81 = 0 (solve) change it to polar, then take the root. z^4= 81@180 z= 3@180/4 + n90 where n=0, 1, 2, 3 check: z= 3@180/4 + 3*90=3@315 z^4=81@(4*315)=81@1260= 91@180=-81 you can check it at the other roots also. this is what i did: z^4 = - 81 z (81 cis 180)^1/4 81 ^ 1/4 ...

Trigonometry
QUESTIONS IM STUCK ON 6. Change -4√2 - 4√2 to trigonometric form A. 32 cis 135° B. 8 cis 225° C. 8 cis 45° D. 32 cis 45° 7. Simplify (2 cis 100°)7. A. 2 cis 700° B. 128 cis 280° C. 128 cis 340° D. 2 cis 340° 9. Simplify 12(cos52° + i sin52°)/8(cos128°+...

Trigonometry
im stuck on these questions....... 6. Change -4√2 - 4√2 to trigonometric form A. 32 cis 135° B. 8 cis 225° C. 8 cis 45° D. 32 cis 45° 7. Simplify (2 cis 100°)7. A. 2 cis 700° B. 128 cis 280° C. 128 cis 340° D. 2 cis 340° 9. Simplify 12(cos52° + i sin52...

Calc
1. The problem statement, all variables and given/known data cos(x) = -2 I was trying to solve that problem ignoring what people say about it not being defined and got a number strangely. I showed step by step so you can tell me what I did wrong as I don't think I did anything...

CALC
1. The problem statement, all variables and given/known data cos(x) = -2 I was trying to solve that problem ignoring what people say about it not being defined and got a number strangely. I showed step by step so you can tell me what I did wrong as I don't think I did anything...

Pre-Calc
Let cis Θ = cos Θ + i sin Θ. Let z1 = 3 cis 25 and let z2 = 4 cis 115 Find z2^6

Math
Let cis Θ = cos Θ + i sin Θ. Let z1 = 3 cis 25 and let z2 = 4 cis 115 Find z2^6

Precalc
(10 cis 200) (2 cis 50) = ? Is it just 20cis(10000)?

CIS
power point presentaion Cis 105

chemistry
Why are cis and trans isomers not possible for ClCH2CH2Cl? Because it is a single bonded compound and cis-trans isomerism is only possible when fre rotation about a bond is restricted or a double bond or cycle is essential for existence of cis-trans isomers.

CellBiology
Enhancers and promoters are ______. In contrast, the heterodimer "TFIIA and TFIIB" are examples of __________. a. trans-acting elements, cis-acting factors b. cis-acting elements, trans-acting factors c. cis-activating factors, trans-acting elements d. trans-activating factors...

Biochem
Enhancers and promoters are ______. In contrast, the heterodimer "TFIIA and TFIIB" are examples of __________. a. trans-acting elements, cis-acting factors b. cis-acting elements, trans-acting factors c. cis-activating factors, trans-acting elements d. trans-activating factors...

trigonometry
2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D...

trigonometry
2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D...

Trigonometry
2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D...

Trigonometry
2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) <---------- B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090...

Trigonometry
Please check if i did right! 2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) <---------- B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i ...

chemistry
What reagents would I have to use to convert a trans alkene into a cis alkene? example: trans-3-heptene to cis-3-heptene My thoughts: I feel as if I would use Br2/CCl4 first to create a dihalide, then possibly 2NaNh2 and finally a lindlar catalyst to end with a cis isomer?

organic chemistry
Apart from the fact that between the two structures, only cyclohexe-4-ene-cis-1,2-dicarboxylic acid has the OH group shown on the IR spectrum. In what other majors way will the IR spectrum of cyclohex-4-ene-cis-1,2-dicorboxylic anhydride differ from the IR spectrum of ...

Chemistry
1. How would you sketch the probable products of the reaction of the cis and trans with each reagent other than AgNO3? _____ with en _____ with NH3 ____ with KSCN cis: trans: (NOTE: What are the differences between cis and trans and its formation?) 2. How exactly would you ...

TO M--urgent
I named that compound as cis and it should be trans. The I atoms are on opposite sides and that's trans, not cis.

Organic Chemistry
In order for a Diels-Alder reaction to take place the diene must be in what conformation? A. cis B. trans C. s-trans D. anti E. s-cis

pre calculus
Find all of the solutions of the equation x4-625i=0 and represent the solutions graphically. what is the next step to answer the question? (x^2-25√i)(x^2+25√i) (x-5∜i)(x+5∜i)(x-5∜i i)(x+5∜i i) i = 1 cis π/2 ∜i = ∜1 cis π/8

CIS 115
CIS 115 week 7 exercise: Determine output. I need help with this week's exercise...DeVry CIS 115 week 7...please help! Using the questions on page 2, determine the output for each question. If input data is provided, be sure to use it with the each question.

Organic chem
Suggest a reason why the trans form of benzalacetophenone if formed in prefernce of the cis form. What does the cis form of this compound look like?

College Chemistry
The equilibrium constant for the conversion of cis-stilbene to trans-stilbene is Kc = 24.0 at 200 C. If cis-stilbene is placed in an empty container at an initial concentration of 0.850 mol/L. What is the final concentration of trans-stilbene in the container at equilbrium? A ...

org chem
Write the cis and trans isomers of 1.) 2-pentene 2.) 3-hexene Please help me idk how. I just know that cis.. Are where atoms are on the same side. While trans on the opposite side

Chemistry
Below is the question I am trying to answer. I think after much debate, I may have it. Does anyone know if I am close to being right? Does cis and trans isomeric compounds display different properties? Why? Cis means on the same side and trans means on the opposite side. Cis ...

Chemistry
Below is the question I am trying to answer. I think after much debate, I may have it. Does anyone know if I am close to being right? Does cis and trans isomeric compounds display different properties? Why? Cis means on the same side and trans means on the opposite side. Cis ...

Organic Chemistry
Which isomer of 1-ethyl-3-methylcyclohexane is more stable, cis or trans? My teacher hasn't covered this material as of yet, but we have a test done tomorrow on it. What is a cis and trans? Not sure how to begin figuring this out. My text book isn't helpful. Thanks

Precalculus
The roots of \[z^7 = -\frac{1}{\sqrt{2}} - \frac{i}{\sqrt{2}}\]are $\text{cis } \theta_1$, $\text{cis } \theta_2$, $\dots$, $\text{cis } \theta_7$, where $0^\circ \le \theta_k < 360^\circ$ for all $1 \le k \le 7$. Find $\theta_1 + \theta_2 + \dots + \theta_7$. Give your ...

Precalculus
The roots of \[z^7 = -\frac{1}{\sqrt{2}} - \frac{i}{\sqrt{2}}\]are $\text{cis } \theta_1$, $\text{cis } \theta_2$, $\dots$, $\text{cis } \theta_7$, where $0^\circ \le \theta_k < 360^\circ$ for all $1 \le k \le 7$. Find $\theta_1 + \theta_2 + \dots + \theta_7$. Give your ...

7th grade challenge math
of 109.6 million house holds, 19,508,800 watched the television show CIS during the week of October 3, 2005. what percent of american households watched CIS this week?

Chemistry
differentiate alkenes and alkynes, cis isomers and trans isomers. Describe how cis-trans isomers are used for night vision

Trigonometry
Stuck :( 1. Simplify (5-√-36)(2+√-1) A. 16 − 7i B. 16 + 7i C. 4 + 7i 2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/3) B. (-2, π) C. (1, π/2) 3. Which of the following is not an approximate solution of x5 – 1 = ...

Maths
Could someone help me with this question Write in polar form : sinx - i cosx I've come up to this point, and it's wrong, can't someone please help? =sin(pie/2-x)-icos(pie/2-x) =cosx-isinx =cis(-x) But the answer is cis(x-pie/2)

convert cis-2-butene and trans-2-butene
why can't you convert cis-2-butene into trans-2-butene simply by undergoing a rotation? answered the original post. please answer this Question

Chemistry
The equilibrium constant, Kp, equals 3.40 for the isomerization reaction: cis-2-butene trans-2-butene. If a flask initially contains 0.250 atm of cis-2-butene and 0.145 atm of trans-2-butene, what is the equilibrium pressure of each gas?

organic chemistry
why can't you convert cis-2-butene into trans-2-butene simply by undergoing a rotation/ The cis and trans isomers of 2-butene involve a pi bond as well as a sigma bond. To "rotate" the molecule, the pi bond must be broken (remember this double bond is planar) and that involves...

Chemistry
Consider the isomerization equlibria of an alkene (C4H8) that co-exists as three isomers. (These 3 are in an equlibrium triangle) Reaction 1: cis-2-butene ⇔ trans-2-butene Reaction 2: cis-2-butene ⇔ 2-methylpropene Reaction 3: trans-2-butene ⇔ 2-methylpropene...

Chemistry
What happens when magnesium is added to Maleic and Fumaric acid? What gas is released from this reaction? I was also wondering if their are any differences between how each acid reacts with the magnesium because one is cis and the other trans. What happens when sodium ...

Chem
The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond exists between carbons numbered 11 and 12. Which ...

CHEM HELP :(
The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond exists between carbons numbered 11 and 12. Which ...

Chem Help!
The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond exists between carbons numbered 11 and 12. Which ...

chemistry
Which if the following statements concerning complex ion Co(en)2Cl2+ is true? en=NH2CH2CHNH2 A)the geometric isomers of the complex ion have identical chemical properties B) the complex ion exhibits cis an dtrans geometric isomers but no optical isomers C)the complex ion ...

european history
hi. I was wondering if this is a good concrete detail. After the fall of the Soviet Union, the leaders of 11 of the 15 constituent republics of the Soviet Union met in Alma-Ata, Kazakhstan, and signed the Charter of the Commonwealth of Independent States, thus de facto ...

cis 113
num values[4]=0,0,0,0,?

CIS
What type of situation is appropriate to use a RAM and why? Thanks for the help.

Chemistry
What is the balanced equation for the preparation of cis-1,2-cyclohexanediol???

chemistry
how many 18 carbon cis-monunsaturated fatty acids are there?

science
Draw the structure for cis-2,3-dibromo-2-hexene.

Chemistry
Is thalidomide a cis isomer or a trans isomers? Thanks

Chemistry
Is thalidomide a cis isomer or a trans isomers? Thanks

Chemistry
Is thalidomide a cis isomer or a trans isomers? Thanks

Precalculus
Write the three cube roots of 8 cis (-30°).

chemistry
What are the differences between cis- and trans-isomers?

college
why us an alkene able to from cis/trans isomers but an alkane can't?

CIS
An object's path is updated by ____ when its name is changed.

cis 115
So what logic is used when pseudocoding compound conditions

chemistry
Why can’t ethyne be turned into trans or cis isomers?

chemistry
What is the difference between e/z notation and cis-trans isomerism?

Trigonometry
change 8 cis 240 degrees to rectangular form

biology - genetics
is the cis-regulatory sequence found in the exome?

chemistry
How are cis trans isomers used for night vision?

chemistry
Why do alkenes but not alkanes exhibit cis-trans isomerism?

CHemistry
Why do cis and trans isomeric compounds exhibit different properties?

chem
is 2-methyl-2-pentene capable of forming cis/trans isomers

chemistry
does any one know how to write cis-2,3-dibromo-2-hexene formula? Please help!

chem
Draw the two chair conformers of cis-1-ethyl-4-isopropylcyclohexane

CIS
How do you create a constructor that takes an integer as a parameter to initialize the radius?

chemistry
Does the complex ion [Co(en)2Cl2]^+ have cis-trans geometric isomers?

science
what is the condensed structure for the reactants and products of the following: cis-2-chloro-2-butene + HI-----> ??

ochem
is cis-1,2-dimethylcyclohexane a conformational isomer of trans-1,2-dimethylcycloehexane? Please explain.

Biochemistry
I have asked for help from other classmates and we are so lost. Any help would be appreciated!! :) Q: What are the major carbon-containing products and the total molar yield of ATP when mammalian cell homogenates are incubated iwth the four fatty acids listed below under ...

Chemistry
what are the condensed structured formulas of the products in each of the following reactions: cyclohexane+ H2-->Pt and cis-2-butene+ H2 -->Pt

CIS logic and design
pseudocode that requests and receives student names and an exam score for each

CIS 105
Where can I find a Microsoft excel on multimedia tools aid classroom instruction

Organic Chemistry
How can I relate cis, trans cyclohexane to enantiomer pairs, diastereomers, and meso stereoisomers?

CIS
A(n) ____ is a file that contains a list of commands that Windows XP can process to draw a graphic image.

maths
a,b,cis natural numbers and the sides of a rightangled triangle theline from altitude to hypotenues is h if 1/a+1/b+1/h - 1 find a,b,c

Chemistry
What are the molecular formula for: 3-methylpentanoic acid Cis-2-propyl-2-hexane N-methylpropanamine N-methylhexan-3-amine

CIS Microcomputers Application
A_______ is a magnetic storage media usually sealed in a cas inside the computer.

chemistry
the pressure on a gas at-73 Cis doubled, but its volume is held at constant. What will the final temperature be in degrees Cesius?

CIS 312 Information systems for managers
What laws should be enacted to combat cyberterrorism? How could such law be enforced?

Chemistry
Which mechanism can better account for the product mixture obtained from the dehydration of cis and trans 4-methyl-cyclohexanol: E1, E2, or a combination of the two?

cis
You've decided to operate a day care home. Which one of the following factors is the most important in helping you make your decision

Trig (math)
1.) Write the complex number in trigonometric form r(cos theta + i sin theta) with theta in the interval [0°, 360°). 9 sqrt 3 + 9i 2.) Find the product. Write the product in rectangular form, using exact values. [4 cis 30°] [5 cis 120°] 3.) [4(cos 135° + i sin 135°)][6(...

Cis/105
Besides budgeting - What are some uses for MS Excel we did not cover in class? Can you think of any other way you could use this application? Explain.

CIS 105
Explore one or more graphics programs available on your computer: Share your experience with the class. What did you like and dislike about the program

Chemistry- Dr.Bob
Why is cis-PCl3F2 polar and trans-PCl3F2 nonpolar?

Chem
Are trans-isomers more stable than cis-isomers? i.e. do they have a higher boiling point?

Chemistry
What are the energies of the 2 conformations of methylcyclohexane and the 2 conformations of cis-1,3-dimethylcyclohexane? thanks

chemistry
why does 2-butene have cis and trans isomers but 1-butene doesn't?

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