Thursday

February 23, 2017
Number of results: 9,538

**Geometry (sorta)**

seven people meet and shake hands with eachother- how many handshakes occur? (second question) using inductive reasoning, write a formula for the number of handshakes if the number of people is n

*August 25, 2008 by Shay*

**Chem**

joules needed to melt 30.0 g of ice at 0 ∘C and to warm the liquid to 60.0 ∘C so i did Q=mFf which i set up like 30.g x 334 j/c = 10020 J then i'm sorta confused what i'm doing next. explain in detail please?

*February 15, 2016 by J*

**geometry**

1.in which geometry do lines no contain an infinite number of points? (a) plane coordinate geometry (b) discrete geometry (c) graph theory 2. in which geometry do points have thickness? (a) plane coordinate geometry (b) discrete geometry (c) graph theory i think the answer is...

*August 30, 2011 by SoccerStar*

**Chemistry**

I just need some ideas of what to put for these on my homework examples for extra credit Name a molecule that has: A) Tetrahedral Geometry B) Trigonal planar geometry C) Linear Geometry D) Bent Geometry

*December 6, 2016 by Anonymous*

**Chemistry**

I just need some ideas of what to put for these on my homework examples for extra credit Name a molecule that has: A) Tetrahedral Geometry B) Trigonal planar geometry C) Linear Geometry D) Bent Geometry

*December 7, 2016 by Anonymous*

**Art/Language**

i have to decorate a cereal box to tell people about myself, sorta like if they where to buy me. What can i put on the sides (like on cereal boxes there are nutrition facts and ingrediants, but what about the other side?)

*September 15, 2007 by Cyleste*

**I need an answer--molecular/electron geometry**

Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6? I think the molecular geometry is octahedral, but I'm not so sure for the electron geometry. Thanks :) *My earlier post wasn't answered, so I'd appreciate some help please =]

*February 8, 2011 by Kate*

**Molecular and Electron geometry**

Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6? I think the molecular geometry is octahedral, but I'm not so sure for the electron geometry. Thanks :) *My earlier post wasn't answered, so I'd appreciate some help please =]

*February 8, 2011 by Kate*

**calculus**

All right, sorta hard to explain but I will try my best. I am suppose to find the equation for the that lines that are tangent to the curve y=cot^2(x) at the point (pie/4, 1)....(the x is not to the power of 2, a variable right next to the cot^2) I am not sure how to do this ...

*June 28, 2012 by hiii*

**Question**

Before the Civil Rights Movement there was a lot of prejudice towards blakc people. In the boxes below, draw three signs you might have seen that were unjust towards black people in a small southern town. I need help. I sorta understand what it is asking. But don't know what ...

*November 22, 2008 by John*

**English comparative essay**

Okay well i have to do a comparative essay of A.E poe "The Raven" but the simpson version and the origional version the poem... But I have no idea what to compare???? and sorta confused what exactly i have to do ? ... hellppp:)

*January 12, 2008 by chanel*

**Molecular and Electron geometry**

Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6? I think the molecular geometry is octahedral, but I'm not so sure for the electron geometry. Thanks :)

*February 7, 2011 by Kate*

**geometry**

Geometry riddl How did they like the story about towel manufacturing? Also, where can I find geometry worksheets on plane and simple? ? ? ?

*September 26, 2006 by Debra*

**writimg-please check**

for my birthday, i asked for an MP3 player, but instead, my parents got me a telescope. When I finished my dinner, I went in my room to try it out. When I looked through it, I could see a girl that looked just like me but bigger and older. for a moment, i sat down and thought...

*June 22, 2012 by Celest*

**chemistry**

Please help with this problem =) The combustion of liquid chloroethylene, C2H3Cl, yields carbon dioxide, steam, and hydrogen chloride gas. I. write a balanced equation for the reaction (I sorta get this part) II. How many moles of oxygen are required to react with 35.00g of ...

*October 9, 2008 by Jack*

**Social Studies**

What your opinion on this statement? The only way to have a successful communist government is to have a corrupt leader. well that sorta depends dosent it? in all honesty i would say it appears more often but i wouldnt say 100%. Your statement is no more true for a communist ...

*May 7, 2007 by Sammy*

**Geometry**

For each property listed from plane Euclidean geometry, write a corresponding statement for non-Euclidean spherical geometry. A line segment is the shortest path between two points Hey guys I want to know how to do this and can you help me with this question?

*May 29, 2011 by Anonymous*

**Algebra 1**

The first of three pipes fills a tank in 12 minutes and a second pipe in 10 minutes. If both these pipes and also a third pipe are open the tank is filled in 4 min. How many minutes will the third pipe alone require to fill the tank? My teacher told me to use a chart and an ...

*February 22, 2013 by NEED HELP NOW!!*

**Chemistry**

I think these I know how to do ....just want someone to check..still sorta mixed up on the first question. Thanx For the following reaction, what is the correctly balanced reduction half-reaction? Fe(OH)3(s) + Cu(s) → Fe(s) + Cu+(aq) + OH-(aq) A. e- + Fe(OH)3(s) → ...

*March 18, 2010 by Mark*

**english**

Have any of you read or watch the movie of West Side Story? If so, please help me with the question below, Thanks in advance. What characteristic best described Tony? A. intellectual B. idealist C. stupid D. angry E. None of the above I would say it's either B or C. Since Tony...

*July 3, 2010 by Priscilla*

**Geometry Letter Grammar??**

Hello I'm in Geometry Honors (I'm a freshman btw) and I'm failing with a D. I talked to my counselor about switching me out and going to regular and she says it's okay BUT she needs a letter from my mother saying it's okay to switch me out. I was wondering if you can write the...

*October 5, 2013 by unknown*

**Chemistry**

Are both the electron domain geometry and molecular geometry of HCN linear?

*December 7, 2009 by Trish*

**geometry**

Math - Plane Geometry. BC is a diameter of circle O, and radius OE is parallel to chord CD. Help?

*May 23, 2011 by Brianna*

**geometry**

how can you tell in geometry that the equations are parallel, perpendicular , neither, either?

*September 25, 2010 by 14*

**Geometry**

Anyone have the Amsco's geometry textbook and can help me out with some homework?

*November 28, 2011 by Anita*

**Geometry**

I Need help doing a geometry proof. In the figure below, PQ=RS. Prove PR=QS. ____________________ P Q R S

*February 5, 2012 by Jennifer*

**geometry**

Prove that the statement, “Rectangles do not exist,” is true in hyperbolic geometry.

*February 20, 2013 by denise*

**math geometry**

how can i prove in geometry proofs that something is a midpoint of a line? thanks

*November 12, 2013 by Annie*

**Geometry**

I need help unscrambling these geometry vocabulary words senligtacirpalse pitprceenostel nyenagliltuiqitrea gemhetrohnie

*January 31, 2010 by Daisy*

**geometry**

in elliptic geometry prove that the length of the summit of a saccheri quadrilteral is less than the base

*May 4, 2011 by al*

**Please help on geometry - analytic geometry**

What is the area, in square units, of a triangle whose vertices are at (4,-1), (10,3) and (4,5) ? How to do this?

*February 22, 2013 by Knights*

**geometry**

prove that The sum of the angles in any triangle is 180 degrees is true in Euclidian geometry.

*February 26, 2013 by denise*

**Chemistry**

What is the Lewis structure formula, electron pair geometry and the molecular geometry for SO4^2-

*August 7, 2013 by rose*

**Geometry**

Is anyone in connections academy? I need help with lesson 5 unit 4 geometry quiz polygons and angles Thank you

*May 1, 2014 by Brenda*

**chem**

what kind of e-pair geometry, molecular geometry, and bond angles does C4H10 exhibit? I'm confused.

*May 5, 2008 by natash*

**Geometry**

In geometry, a common standard setting for enlarging on a copy machine is 121 percent. What does this mean?

*November 25, 2013 by Martha*

**geometry**

what geometry figure begins and ends in the same point

*January 28, 2009 by john smith*

**geometry**

In geometry, can a counterexample be used to determine if a conjecture is false or not?

*January 15, 2010 by erin*

**geometry**

Can somebody help me with Proofs in Geometry Given:M<ABE=M<CBD

*June 19, 2012 by Jay*

**Geometry**

If you could fold a football field in half the fifty yard line would be the ? Find geometry term

*April 18, 2016 by Rachel*

**Geometry**

Can someone help me with lesson 10 unit 4 geometry test? 8th grade 1. Name a pair of vertical angles 2 and 5 2 and 6 3 and 4 5 and 6 2 if M 1 = 43 what is M 4 53 43 37** 27 If M 1 = 55 what a m 5 55 40 35 25**

*April 26, 2016 by Anonymous*

**Geometry**

In Euclidean geometry, the sum of the measures of the interior anglesof a pentagon is 540o. Predict how the sum of the measures of the interior angles of a pentagon would be different in spherical geometry.

*June 22, 2012 by Dillon*

**CHEMISTRYYYY**

Electron DOMAIN GEOMETRY & the MOLECULAR GEOMETRY of the following compounds: 1) ICl3 2) PCl3 3) XeF4 4) SF6 5) TeCl4

*March 30, 2012 by BMW*

**Chemistry**

1. [ PF4 ]+ (a) What is the electron-group geometry, according to VSEPR theory? (b) What is the molecular geometry? (c) Is this species polar or nonpolar?

*December 7, 2015 by S*

**Geometry**

I need help with my geometry homework Use Euler's formula to find the missing number. Vertices : 15 Edges : 24 Faces : ? * 9 * 10 * 11 * 12

*May 23, 2016 by QuestionMark*

**Geometry**

Help with Geometry please! Do you have any specific questions?

*October 16, 2006 by Margie*

**geometry**

Why don't parallel lines exist in elliptical geometry?

*July 13, 2010 by BOB*

**geometry**

prove that rectangles do not exist in hyperbolic geometry

*March 13, 2013 by denise*

**Geometry**

How do we use geometry in our everyday lives?

*October 8, 2016 by Zoella*

**CHEMMMMM**

Find the Electron DOMAIN GEOMETRY & the MOLECULAR GEOMETRY of the following compounds: 1) ICl3 2) PCl3 3) XeF4 4) SF6 5) TeCl4

*March 30, 2012 by BMW*

**Geometry**

I scored 5616 on my Geometry scantron but that number is to large to make any sense. Is that a good or a bad score. I'm in 9th Grade.

*January 31, 2017 by Daniel*

**Math-Precalculus-Parametric Equations - Ellipses**

The graph of the equation (x-h)^2/(a^2) + (y-k)^2/b^2 = 1 is an ellipse with center (h,k), horizontal axis length 2a, and vertical axis length 2b. Find parametric equations whose graph is an ellipse with center (h,k), horizontal axis length 2a, and vertical axis length 2b, and...

*December 9, 2013 by Sam*

**Lifeskills**

Need help people making a resume for hw assignment!!? okay so I'm in 9th grade and have life skills .we have to make our own resume on the job we want. i want to study criminology and become a detective so i have to write stuff sorta pertaining to it. like in my summary i ...

*May 8, 2010 by Angel*

**geometry**

to all the people that helped me with my recent geometry questions thankyou my grade I received was 45 out of 50 points best I've ever done in my class.

*January 13, 2011 by crystal*

**PLEASE HELP**

whats a complimentery line? Thank you for using the Jiskha Homework Help Forum. If you are studying Geometry: http://astronomyonline.org/Science/Geometry.asp

*August 15, 2007 by Sarahbeth*

**Algebra**

In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. Of ...

*January 11, 2010 by Anita*

**Geometry**

Ok i don't understand this question on my Geometry test. It says: On days that it rains, I carry an Umbrella 1. Rewrite the above statement as a conditional Can someone help me here?

*November 14, 2007 by Christina (:*

**geometry**

if the midpoints of the sides of a parallelogram in succession are joined, the quadrilatral formed is a a parallogram. Prove this theorem in euclidean geometry using analytic techniques

*April 4, 2013 by denise*

**math (geometry)**

What is a good website that can help me with geometry?

*March 3, 2008 by jonasgrl12*

**Geometry**

In geometry what kind of algebra do you use?

*September 10, 2010 by Samantha*

**geometry**

In Geometry how do I calculate the precion of 14 meters?

*August 21, 2012 by jane*

**geometry**

why do rectangles not exist in hyperbolic geometry

*February 18, 2013 by denise*

**Geometry :)**

Use coordinate geometry to prove that the quadrilateral formed by connecting the midpoints of a kite is a rectangle. I have no Idea how to do this problem, so if anyone could help I would be very greatfull. :)

*January 15, 2013 by Bob*

**Geometry**

I need some help with a geometry question! connexus()com/content/media/527934-12182013-42511-PM-845062975()png 4. What are values of x and y? a. x = 9/4, y = 3/4 b. x = 9/4, y = 15/4 c. x = 15/4, y = 5/4 d. x = 3/4, y = 15/4 I think it's A. Can someone help?

*February 12, 2015 by Sandy East Ward*

**Geometry (Checking)**

2.) Which is true about both Pappus's Theorem and Desargues' Theorem? Each theorem applies to spherical geometry. Each conclusion states that three points are collinear. <---- Each hypothesis is based on triangles. Each theorem involves a dilation. 3.) How many degrees are ...

*May 28, 2014 by Jazy*

**Geometry**

Discuss the differences between a coordinate geometry proof and a proof method that does not require coordinate geometry. When would it be appropriate to use a coordinate proof rather than another proof method?

*February 5, 2017 by Unknown*

**Geometry**

Which of the following statements from Euclidean geometry is also true of spherical geometry? a. A line has infinite length. b. Two intersecting lines divide the plane into four regions. c. Two perpendicular lines create four right angles. d. The intersection of two lines ...

*August 5, 2011 by Lily*

**geometry, thanks**

I just wanted to thank everyone that helped me on my geometry problem. I actually found the answer using the pythagorean theorem and knowing ratio rules that apply to triangles. Thanks again.

*July 13, 2006 by Kaytee*

**Math**

The homothetic geometry on C is (C,H) where H is the group of scaling of C. Which figures are congruent in (C,H) to the circle of radius 1 centered at 1? How could you describe the congruence class in language understandable by a high school geometry student?

*October 3, 2011 by Kyle*

**geometry**

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...

*September 13, 2010 by Audrey*

**geometry**

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...

*September 13, 2010 by Audrey*

**math**

8. In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra, and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. ...

*November 30, 2009 by poo*

**Geometry**

Need help please: (3,0) (7,6) (x-7)2 + (y-6)2 = 7(2) (x-7)2 + (y-6)2 = 49 Having difficulty with this problem.Can someone help? geometry - Reiny, Saturday, March 31, 2012 at 8:07am You don't say what the actual problem is. I see the resemblance to finding the equation of a ...

*March 31, 2012 by Kel*

**Geometry**

Need help please: (3,0) (7,6) (x-7)2 + (y-6)2 = 7(2) (x-7)2 + (y-6)2 = 49 Having difficulty with this problem.Can someone help? geometry - Reiny, Saturday, March 31, 2012 at 8:07am You don't say what the actual problem is. I see the resemblance to finding the equation of a ...

*March 31, 2012 by Kel*

**line**

what is a compimentary line in math? Thank you for using the Jiskha Homework Help Forum. If you are studying Geometry: http://astronomyonline.org/Science/Geometry.asp

*August 15, 2007 by Bob*

**geometry:linear measure and precision**

how to find examples of rulesfor this theme I'm not quite sure what information you are seeking. I need more details. However, I searched Google under the key words "linear measure rules geometry" to get these possible sources: http://www.tuhh.de/rzt/rzt/it/Geometry.html http...

*August 23, 2006 by Alma*

**geometry**

what a good way to learn geometry if you are completely clueless on what to do and you have a 65 and you only have 2 weeks to correct that

*September 22, 2008 by Jasmyn*

**AP Chemistry- PLEASE HELP**

The electron-domain geometry and molecular geometry of iodine trichloride are __________ and __________, respectively.

*January 29, 2013 by Sonya*

**Geometry**

The diameter of circle C is 16 cm. is 70°. Use this information, the diagram, and your experiences in geometry this semester to answer these questions. (Use .)

*June 4, 2014 by Lalo*

**geometry**

i'm in my geometry book and i don' get number 28. it says the quotient of two proper fractions is a proper fraction. i'm a post to find a counterexample. I NEED HELP

*August 18, 2009 by jennyo*

**Geometry**

The diameter of circle C is 18 cm. measurement of arc AD is 60°. Use this information, the diagram, and your experiences in geometry this semester to answer these questions. (Use 3.14 as pie)

*June 3, 2014 by Sarah Musselman*

**Geometry**

Hi I was having some problem with this question, its been a while since I had been in geometry. I think you foil, but Im not sure. Solve for X. 2(x+4)(x+3)= 3(x+2)(x-1)

*December 11, 2016 by George*

**geometry**

What does this symbol mean in Geometry ¡ü?

*October 27, 2010 by Rhonda*

**geometry**

the set of lessons in this geometry course is:

*April 17, 2014 by kim*

**geometry**

explain the importance of a centroid in design and manufacturing.include a description of how the cenroid of a triangular component of a design can be found using analytic geometry

*October 31, 2010 by crystal*

**Geometry**

Could you please explain the difference between B, longer base of a trapezoid and b, base in geometry?

*February 11, 2016 by Joe*

**geometry**

i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 REMEMBER 4-FOLD SYMMENTRY IS NEEDED !!! URGENT !!!

*September 19, 2010 by vaishnavi*

**geometry**

i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 REMEMBER 4-FOLD SYMMENTRY IS NEEDED !!! URGENT !!!

*September 19, 2010 by vaishnavi*

**geometry**

A tetrahedron is a triangular pyramid in which each face is an equilateral triangle. Calculate the volume of a tetrahedron that has all its edges 6 cm in length. Hint: You will need to know some geometry and trigonometry.

*May 15, 2012 by Lucas*

**geometry**

The coordinates for a rhombus are given as (2a, 0), (0, 2b), (–2a, 0), and (0, –2b). Write a plan to prove that the midpoints of the sides of a rhombus determine a rectangle using coordinate geometry. Be sure to include the formulas.

*January 8, 2013 by Anna*

**Geometry**

Which statement from Euclidean geometry is also true in spherical geometry? a. A line has infinite length b. Two intersecting lines divide the plane into four regions c. Two perpendicular lines create four right angles d. The intersection of two lines create four angles. I ...

*March 4, 2014 by Kylee*

**Trigonometry/Geometry - Inequalities**

Let a, b, and c be positive real numbers. Prove that sqrt(a^2 - ab + b^2) + sqrt(a^2 - ac + c^2) is greater or equal to sqrt(b^2 + bc + c^2). Under what conditions does equality occur? That is, for what values of a, b, and c are the two sides equal? This looks like a geometry...

*December 7, 2013 by Sam*

**Geometry HELP**

Using coordinate geometry to prove that the diagonals of a square are perpendicular to each other. Given: Vertices are at A(0,0), B(a,0), C(a,a) and D(0,a) Slope of AC=1; Slope of BD=-1 Type your proof. (someone plz help cuz i don't understand)

*June 10, 2010 by Ariel*

**Geometry**

Geometry: the width and area of a rectangle Is (4b^3+5b-3)/(2b-1) What is the length of the rectangle? Show work.

*May 1, 2014 by Sandra*

**Geometry**

What is the difference between B as in the longer base of a trapezoid and b as in base in terms of geometry?

*February 9, 2016 by Anonymous*

**Chemistry**

# Electron Pairs # Lone Pairs Electronic Geometry Molecular Geometry Lewis Structure Sketch of Shape I need to do the above things for SBr6 and BrCl5. If anybody can help that would be great!

*April 26, 2011 by Jake*

**Geometry**

Complete Problem 34 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary.

*July 6, 2015 by Ice*

**physics**

Here's a physics problem. I don't care about the answer, i just want to know how to do it. don't have to be too detailed.. but i don't really kno how to start this 1.) A model rocket blasts off from the ground rising straight upward with a constant acceleration that has a ...

*September 18, 2010 by jo*

**geometry**

what is the difference between two-dimensional and three-dimensional geometry?

*May 20, 2011 by naimah*

**Math**

1. In geometry, the symbol used to identify an object often looks like the meaning, or picture, of itself. Which of the symbols in geometry listed below does not resemble itself? A) angle B) parallel C) perpendicular D) similar** Is the answer D? Thank you for any help. :)

*August 31, 2015 by Tim*