Sunday

May 24, 2015

May 24, 2015

**geometry **

in circle O, perpendicular chords AB and CD intersect at E so that AE=2, eb=12 and CE=4. find the radius of a circle O and the shortest distance from e to the circle
*Sunday, December 15, 2013 at 8:35am*

**Geometry**

RS=3X+1,ST=2x-2,And RT=64 Find The Vaule Of X ?
*Friday, December 13, 2013 at 11:43am*

**Math - Precalculus - Parametric Equations/Geometry**

A hockey puck of diameter 3 inches is spinning around its center at a speed of 3 counterclockwise rotations per second. The center of the puck is traveling at a speed of 24 inches per second at an angle of 45 degrees to the positive real axis. (a) At time t=0, the center of ...
*Wednesday, December 11, 2013 at 5:07pm*

**chemsitry**

The molecular geometry of POCl3 is tetrahedral. What hybridization does this indicate for the central P atom? Why is the answer spy?
*Wednesday, December 11, 2013 at 3:36pm*

**basic geometry**

for safety reasons , anyone parasailing behind a boat needs to stay at least 25 feet away from the back of the boat. if you were parasailing using a 250 foot rope , how far from the boat would you be if you were 100 feet high in the air ? round to the nearest tenth. what is ...
*Wednesday, December 11, 2013 at 9:13am*

**basic geometry**

the three verticies of a triangle can be found at the points A(2,3) , B(-3,6), C(-4,-3) how long is each side of the triangle ab,bc,and ac explain how you got the answer. is this triangle a right triangle ? why and explain.
*Wednesday, December 11, 2013 at 9:05am*

**GEOMETRY PLZ HELP!**

Mrs.sally needed to build a triangular platform in the shape of an isosceles right triangle . The legs of the triangle are 6"long how long was the base side of the triangular platform ? She also made wall panels for the show that were 4" wide . How many panels would ...
*Tuesday, December 10, 2013 at 9:29pm*

**basic geometry**

mrs. sally needed to build a triangular platform in the shape of an isosceles right triangle. the legs of the triangle are 6"long how long was the base side of the triangular platform? she also made well panels for the show that were 4" wide. how many wall panels ...
*Tuesday, December 10, 2013 at 9:20pm*

**geometry**

mrs. sally needed to build a triangular platform in the shape of an isosceles right triangle. the legs of the triangle are 6"long how long was the base side of the triangular platform? she also made well panels for the show that were 4" wide. how many wall panels ...
*Tuesday, December 10, 2013 at 8:35pm*

**Geometry **

An equilateral triangle has side lengths of 10. If the consecutive midpoints of the triangle are joined, then find the perimeter of the new triangle that is formed
*Tuesday, December 10, 2013 at 6:06pm*

**GEOMETRY CIRCLES **

1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ...
*Tuesday, December 10, 2013 at 9:45am*

**Geometry**

I need to do an assignment where I find two cereal boxes that have the same volume but differ in surface area? Can someone please tell me when I'm looking at the boxes what I need to be looking at to compare these two things please? Thank you!
*Tuesday, December 10, 2013 at 9:34am*

**Geometry about the circles **

1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ...
*Tuesday, December 10, 2013 at 5:14am*

**Geometry**

Quadrilateral RUBY is a rectangle. Which of the following statements MUST be true? Check all that apply: [] All four of the sides of RUBY are equal. []All four of the angles of RUBY are equal. []RUBY has two pairs of parallel opposite sides.
*Monday, December 9, 2013 at 10:00pm*

**Geometry**

Find the missing numbers for the dimensions and measures of a rectangular prism... Length ? Width 2.5 m Height 4.6 m Surface Area ? Volume 172.5 m to the third power Please answer the one's with a ?. Thank you.
*Monday, December 9, 2013 at 3:11pm*

**Geometry**

I need an example of two cereal boxes that have the same volume but different surface area. I need the brand and box sizes. Then I need to pick one of the cereal boxes and redesign it so that it has the same volume but less surface area. Why do you think most products are not ...
*Monday, December 9, 2013 at 2:16pm*

**Geometry**

Find the missing numbers for the dimensions and measures of a rectangular prism... Length 5 m Width ? Height ? Surface Area 94 m to the second power Volume 60 m to the third power Please answer the one's with a ?. Thank you.
*Monday, December 9, 2013 at 1:16pm*

**Geometry **

Kelly drew four points A, B, C, and D in her notebook. A straight line joins points A and C. Another straight line joins A and B. A point D is located on the left of the line AB Kelly made the following statements about the points. Statement 1: There is at least one more point...
*Monday, December 9, 2013 at 11:58am*

**Help me pls geometry**

UVW~XYZ, UV= 15, UW=25, and XZ=60. If the perimeter of XYZ is 168, what is the perimeter of UVW?
*Monday, December 9, 2013 at 11:14am*

**Geometry about the circles **

1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ...
*Monday, December 9, 2013 at 5:21am*

**help me pls geometry**

Which tirangles must be similar 1. Two right triangles with a congruent acute angle 2. Two obtuse angles 3 Two isosceles triangles with congruent bases 4. Two scalene triangles with a congruent angle
*Monday, December 9, 2013 at 1:48am*

**help me pls geometry**

If ab=8, BC=14, and df=33 what is ef?
*Monday, December 9, 2013 at 1:44am*

**GEOMETRY CIRCLES PLEASE**

HELP ME PLEASE. 1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both...
*Sunday, December 8, 2013 at 7:48am*

**GEOMETRY CIRCLE **

1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both circles. Given ...
*Sunday, December 8, 2013 at 5:18am*

**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...
*Saturday, December 7, 2013 at 4:58pm*

**GEOMETRY CIRCLES PLEASE**

1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both circles. Given ...
*Saturday, December 7, 2013 at 11:26am*

**Trigonometry - Geometry - side lengths **

In convex quadrilateral ABCD, angle A is congruent to angle C, AB=CD=180, and AD is not equal to BC. The perimeter of ABCD is 640. Find cos A. Hmm...I drew the diagram, and labeled some things, I drew an altitude from D to AB and did some other things, but no success was ...
*Friday, December 6, 2013 at 4:13pm*

**Geometry**

Find the missing numbers for the dimensions and measures of a rectangular prism... Length ? Width 7 m Height 5 m Surface Area 214 m to the second power Volume ? Please answer the one's with a ?. Thank you.
*Friday, December 6, 2013 at 1:09pm*

**Geometry**

If x is the midpoint of line vy and wz and the reason is given then wx=xz and vx=xy then angle wxv = angle yzx to get the triangle vwx congruent to triangle yzx then what would be the reasons after given to make the triangle congruent
*Friday, December 6, 2013 at 8:20am*

**Geometry**

If x is the midpoint of line vy and wz And the prove is triangle vwx is congruent triangle yzx can you help me solve this using two column prove
*Thursday, December 5, 2013 at 3:46pm*

**Geometry**

Let's say a company is manufacturing juice boxes that are rectangular prisms with dimensions 4 inches by 3 inches by 4 inches. The company has a warehouse whose dimensions are 40 feet by 30 feet by 20 feet. If the company makes 200,000 juice boxes, will it be able to store...
*Thursday, December 5, 2013 at 1:55pm*

**Geometry**

Imagine a piece of square paper that measures 20 by 20 cm. You can make a box (with no lid) by cutting a square of the same size from each corner and folding up what's left to make a box. Keeping the lengths of each sides integers, what is the maximum volume box that can ...
*Thursday, December 5, 2013 at 1:13pm*

**Trig-Weird Geometry Problem**

Determine all triangles ABC for which tan(A-B)+tan(B-C)+tan(C-A)=0. There's a hint: "Can you relate A-B to B-C and C-A?" Should I apply the tangent difference formula (tan(x-y))? Help would be appreciated, thanks.
*Thursday, December 5, 2013 at 11:02am*

**Geometry **

1. If ΔRST symbol ΔNPQ, then RT line is congruent to _____. (1 point) line NP line NQ line PQ line QP 2. Given RST NPQ, RT = 7x – 5, NQ = 5x + 11, find the length of RT and of NQ. (1 point) 8 51 40 56 3. Which of the following statements is true about the ...
*Thursday, December 5, 2013 at 1:42am*

**Geometry**

How to solve for perpendicular bisectors of right triangle. RST meet at point D. Find DR
*Wednesday, December 4, 2013 at 8:05pm*

**Geometry**

A softball player asked her father to make her a home plate for a softball game. According to her encyclopedia, an official plate is made from a square by making two 12-inch diagonal cuts upward from both bottom corners. What is the length of the side of the original square?
*Wednesday, December 4, 2013 at 1:21pm*

**Geometry/Trigonometry**

Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles can be written in the form y=mx+b with m < 0. What is b? I drew the diagram and the tangents but to no avail. I cannot seem to find the points ...
*Wednesday, December 4, 2013 at 12:18pm*

**Geometry**

How is the size of a TV measured? If we are comparing a 15-inch TV and a 30-inch TV, what is twice as big about the bigger TV?
*Wednesday, December 4, 2013 at 10:23am*

**Geometry**

Find the area of the triangles in square centimeters: a. 3.5, 4.8, 6.1 b. 10.2, 4.4, 7.1
*Wednesday, December 4, 2013 at 10:10am*

**GEOMETRY CIRCLES PLEASE**

The diagram shows tangent circles and lines. if AB=15 CM find AC, AD and AE . Help me reiny and other tutors please<3 thank you this is the figure img19.(imageshack.)us/img19/7143/0eua.png just remove the open and close parentheses thank you
*Wednesday, December 4, 2013 at 8:36am*

**Trigonometry/Geometry**

Rhombus ABCD, with side length 6, is rolled to form a cylinder of volume 6 by taping AB to DC. What is sin(angle ABC)? I don't know how to begin. Help?
*Tuesday, December 3, 2013 at 9:18pm*

**geometry**

Kendra is flying a kite 35 feet in the air. The angle of depression from the kite to where Kendra holds the string is 32 degrees. If Kendra holds the string 3 feet off the ground, what is the distance from her hands to the kite? Round your answer to the nearest tenth.
*Tuesday, December 3, 2013 at 6:35pm*

**geometry**

A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?
*Tuesday, December 3, 2013 at 5:04pm*

**geometry**

A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?
*Tuesday, December 3, 2013 at 5:00pm*

**geometry**

A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?
*Tuesday, December 3, 2013 at 4:56pm*

**geometry**

Two secant segments are drawn to a circle from a point outside the circle. The external segment of the first secant segment is 8 centimeters and its internal segment is 6 centimeters. If the entire length of the second secant segment is 28 centimeters, what is the length of ...
*Tuesday, December 3, 2013 at 3:40pm*

**geometry**

Two secant segments are drawn to a circle from a point outside the circle. The external segment of the first secant segment is 8 centimeters and its internal segment is 6 centimeters. If the entire length of the second secant segment is 28 centimeters, what is the length of ...
*Tuesday, December 3, 2013 at 3:37pm*

**Geometry**

The average human heart pumps about 60 milliliters of blood for each beat. a. About how many liters of blood does your heart pump each day? b. Do you think a reasonable degree of precision for this question would be to report the answer to the nearest 100 liters, 10 liters, 1 ...
*Tuesday, December 3, 2013 at 12:44pm*

**Geometry**

To determine the relationship between miles and kilometers, if we use the conversion 39.37 inches= 1 meter, we find that 1 kilometer is approximately equal to 0.62 mile. What if we use the conversion 2.54 centimeters = 1 inch? How far apart are the answers (1 kilometer = x ...
*Tuesday, December 3, 2013 at 10:17am*

**geometry**

Deshawn built a model train car. The length of the model train car is 6 in. The scale Deshawn used to build the model train car is 1:36. What is the actual length of the train car in FEET?
*Monday, December 2, 2013 at 9:34pm*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*Monday, December 2, 2013 at 8:20am*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*Monday, December 2, 2013 at 8:00am*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*Monday, December 2, 2013 at 7:44am*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*Monday, December 2, 2013 at 7:39am*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*Monday, December 2, 2013 at 7:35am*

**Geometry**

for each parallelogram find the measures of the angles formed by extending two adjacent side through their common vertex: angle is 90 degrees
*Sunday, December 1, 2013 at 7:12pm*

**Geometry**

You use a copy machine to enlarge an 8” 11” document, and you choose the 136 % enlargement setting. What will be the dimensions of the enlarged document? Round to the nearest hundredth of an inch.
*Friday, November 29, 2013 at 7:05pm*

**Geometry**

True or False: If a figure does not have point symmetry, it cannot have reflection symmetry.
*Friday, November 29, 2013 at 6:44pm*

**geometry**

If angle 1 and angle 2 are vertical angles and measurement angle 1= 3x+17 and measurement angle 2= 4x-34 what is measurement angle 1?
*Wednesday, November 27, 2013 at 8:49pm*

**geometry**

A flagpole has a height of 10 yards. It will be supported by three cables, each of which is attached to the flagpole at a point 4 yards below the top and attached to the ground at a point that is 8 yards from the base of the pole. Find the total number of feet of cable that ...
*Tuesday, November 26, 2013 at 9:46pm*

**Geometry**

If mAB = 324 feet, mBC = 103 feet, and mCD = 212 feet, what is the distance across the pond?
*Monday, November 25, 2013 at 2:44pm*

**Geometry**

Describe the rotation and reflection symmetries in the Maple Leaf of Canada and the "Life" Ancient Egypt cross.
*Monday, November 25, 2013 at 2:33pm*

**Geometry**

In geometry, a common standard setting for enlarging on a copy machine is 121 percent. What does this mean?
*Monday, November 25, 2013 at 2:06pm*

**Analytic Geometry(Math)**

a person 6 ft. tall s standing near a street light so that he is 4/10 of the distance from the pole to the tip of his shadow. How high above the ground is the light bulb? if the person's head is exactly 5ft from the light bulb. how far is the person from the pole and how ...
*Monday, November 25, 2013 at 6:42am*

**geometry**

Given: ABC,/ AD bisects <BAC, and /AE=/ED Prove: AE/AC = BD/BC
*Monday, November 25, 2013 at 3:38am*

**geometry**

A plane is is flying 225 mph heading S25°W. The wind is blowing S80°E at 60 mph. What is the bearing of the plane? What is the smallest angle of the triangle? What is the largest angle of the triangle? What is the remaining angle of the triangle? What is the ground ...
*Sunday, November 24, 2013 at 11:39pm*

**Trig-Geometry - Law of sines and cosines**

Hello everyone, I've been struggling on this problem for quite some time. It would be appreciated if you could help. Thanks. (The website is the diagram, it is a screenshot) In the diagram below, triangle ABC has been reflected over its median AM to produce triangle AB'...
*Sunday, November 24, 2013 at 11:01pm*

**Geometry**

How many diagonals does a prism have whose base is a regular polygon with 3 sides?
*Sunday, November 24, 2013 at 11:58am*

**Geometry**

Three vertices of a kite are (1,8), (1,0), and (4,6). What is the fourth vertex?
*Sunday, November 24, 2013 at 11:37am*

**Geometry**

What is y if 6y+1=21y+13
*Saturday, November 23, 2013 at 1:11pm*

**Geometry**

The coordinates of the endpoints of the hypotenuse of a right triangle are (7, 5) and (3, 1). Find the other vertex. There are two possible solutions.
*Friday, November 22, 2013 at 12:58pm*

**Geometry**

The two vertices that form the base of an isosceles triangle are (-5, 3) and (2, 3). What are the coordinates of the other vertex?
*Friday, November 22, 2013 at 11:21am*

**geometry**

1. the sum of the interior angle measures of a convex dodecagon. 2. the measure of each interior angle of a regular 20-gon
*Thursday, November 21, 2013 at 8:20pm*

**Geometry **

What is the equation go the line that is parallel to the graph of y=1/2x+6, and who's y-intercept is -2
*Thursday, November 21, 2013 at 7:09pm*

**Trigonometry/Geometry - Law of sines and cosines**

In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB = DE, BC = EF, and angle A = angle D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special ...
*Thursday, November 21, 2013 at 4:03pm*

**Geometry**

Three vertices of a kite are (6, 8), (9, 11), and (12, 8). What are the coordinates of the fourth vertex?
*Thursday, November 21, 2013 at 1:22pm*

**Geometry**

Name all of the possible different rays that can be formed from the three points below: A B C <_______________>
*Thursday, November 21, 2013 at 11:05am*

**Geometry**

Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter. and there's a ...
*Wednesday, November 20, 2013 at 10:35am*

**magnets**

A proton with a velocity of 2.0 x 10^7 m/s in the horizontal (+x) direction enters a region of uniform magnetic field that is 1 meter wide and points out of the page with a magnitude of 0.05 Tesla. At what angle below the x-axis, in degrees, does the proton's trajectory ...
*Wednesday, November 20, 2013 at 1:16am*

**Trigonometry/Geometry**

In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB = DE, BC = EF, and angle A = angle D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special ...
*Tuesday, November 19, 2013 at 1:47pm*

**Geometry (math)**

Suppose line p is perpendicular to line s and line q is perpendicular to line s. are p and q parallel under all circumstances? Draw a figure to illustrate your answer . I doubt if we can post pictures on this,because my question asks to draw a figure.I seriously need an answer...
*Tuesday, November 19, 2013 at 9:57am*

**Geometry (math)**

Determine whether line QV and line RM are parallel,perpendicular or neither ?
*Tuesday, November 19, 2013 at 9:51am*

**Geometry**

triangle HJK with median HN, JL, and KM and centroid P 1)PN=?HN 2)PL=?JP, KP?KM
*Tuesday, November 19, 2013 at 3:21am*

**geometry**

point g is the centroid of triangle ABC find value of x, FG=x+8 and AF=9x-6
*Tuesday, November 19, 2013 at 3:18am*

**Geometry (math)**

Identify 2 planes in a triangular prism that intersect.Name their intersection
*Monday, November 18, 2013 at 11:46pm*

**Geometry (math)**

Identify 2 planes in a triangular prism that intersect.Name their intersection
*Monday, November 18, 2013 at 11:12pm*

**geometry **

If a decorative sign in the form of a circle has a diameter of 10 feet, what it the area of the sign, to the nearest square foot? A. 79 ft2 B. 16 ft2 C. 157 ft2 D. 31 ft2
*Sunday, November 17, 2013 at 1:19pm*

**geometry **

What is the altitude of a rhombus if its area is 50 square meters and the length on one side is 12.5 meters? A. 10 m B. 4 m C. 7.5 m D. 12.5 m
*Sunday, November 17, 2013 at 1:11pm*

**geometry **

A monument in the form of a marble cylinder has a circular base with a radius of 1.5 meters. The altitude of the monument is 3.5 meters. How many cubic meters of marble does this monument contain? A. 7.07 m^3 B. 21.21 m^3 C. 24.74 m^3 D. 6.19 m^3
*Sunday, November 17, 2013 at 12:31pm*

**geometry easy**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...
*Sunday, November 17, 2013 at 7:26am*

**geometry**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...
*Sunday, November 17, 2013 at 5:24am*

**geometry triangles**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...
*Saturday, November 16, 2013 at 9:30pm*

**GEOMETRY**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...
*Saturday, November 16, 2013 at 7:13pm*

**geometry**

AB = AE BC = DE prove 1 = 2
*Saturday, November 16, 2013 at 1:51pm*

**math (please help)!**

Geometry ***(PLEASE CHECK MY ANSWER)*** 1. If triangle RST = triangle NPQ, which of the following is true? A.) ÚR = ÚP B.) ÚR = ÚQ C.) ÚT = ÚP D.) ÚT = ÚQ <----- My ...
*Friday, November 15, 2013 at 10:24am*

**geometry**

The measure of an angle formed by two secants intersecting outside the circle equals ½ the sum of the intercepted arcs ½ the difference of the intercepted arcs ½ the measure of the intercepted arc
*Friday, November 15, 2013 at 9:20am*

**Geometry**

If RS = 4x, Line RS approximately equal to line ST and RT = 24, then find the value of x. Can someone please help me, i don't understand this at all!
*Friday, November 15, 2013 at 8:50am*

**Geometry**

If ST = y + 2, RT = 5y – 10 and RS = 2y, then find the value of y and all three lengths. If RS = 4x, Line RS approximately equal to line ST and RT = 24, then find the value of x.
*Friday, November 15, 2013 at 8:03am*

**CHEMISTRY**

Post a New Question Current Questions Homework Help: Chemistry Posted by Anonymous on Thursday, November 14, 2013 at 8:45pm. CONTINUE>>>>>>>>>>> The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->...
*Thursday, November 14, 2013 at 9:40pm*

**Geometry**

If you have four lines how can you position them so that three are concurrent with each other and two are parallel to each other?
*Thursday, November 14, 2013 at 2:03pm*