Questions on Geometry: Points, lines, angles, perimeter answered by real tutors!

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Question 161979: Help! I have 3 sets of points and don't know how to do this????
Here's the problem: Find the slope of the segment drawn from point C (2,2) to the midpoint of D (4,2) and E (-8,18). I got -2 but I'm not sure if that is correct???
Here's one more I'm having trouble with: If Y is the midpoint of segment UV and UY = 4x-3 and YV =x find UV. I got 5x-3 but again I'm not sure if it's right ???? Please help!
Click here to see answer by Earlsdon(6294)

Question 162154: find the midpoints between points (-5,9) (-2,-4)
Click here to see answer by elima(1433)

Question 162629: Find the value of each variable and the measure of each labeled angle:
There are two lines that cross (like an X)
The top is: (y plus x)degrees
The left is: 2x degrees
The right is: (y-x) degrees
I don't know how i'm supposed to solve with two variables
Click here to see answer by Fombitz(32388)

Question 163344: joe hasto stretch his arm from 90 to 138
he watns to straighthen his elbow by about 12 every
3 days. how many days will it take to get to 138?
Click here to see answer by checkley77(12844)

Question 163652: Directions:Tell whether the line throught the given points are parellel,penpendicular,or niether . Justify your answer .

Line 1: (1,0)(7,4)
Line 2: (7,0)(3,6)
*Now my question is how do you know if it is one of the three lines .(Perpendicular,Parellel,or niether).And How can I justify it ??
Click here to see answer by Fombitz(32388)

Question 164307: Please help me solve this equation: .

Click here to see answer by stanbon(75887)

Question 164320: 3x-y+3-0
Click here to see answer by midwood_trail(310)

Question 164935: Write an equation for the line parrallel to XY that contains point Z.
XY: x=1/2y + 1, Z(1,-2)
Click here to see answer by MRperkins(300)

Question 165480: Dear sir!

Please solve this question.
Q 1. Write down an equation or equations for each of the following.
a. A plane parallel to xy-plane at a distance of 4 units from origin on negative z-axis.
b. A curve produced due to the intersection of a circular cylinder and yz-plane. Center of this circular cylinder is x-axis (that is, cylinder is around x-axis) and its radius is one.
c. A curve produced due to the intersection of a sphere, center at origin and radius 3, and xy-plane.

Click here to see answer by Alan3354(69443)

Question 165973: I have a couple problems I have attempted but not sure if I'm right. Here goes--1) What is the measure of each exterior angle of a regular pentagon? Answer 45 degrees and 2) The sum of the interior angle of a certain polygon is the same as the sum of its exterior angles. How many sides does the polygon have? Answer 4
Click here to see answer by Alan3354(69443)

Question 168152: What is the slope intercept form of (3,2), y= 3x + 4 and is it parallel to what would be the graph of the given equation?
Click here to see answer by jim_thompson5910(35256)

Question 168378: I need to know the the name of a liner system that's 3-D that is not parallel, intersecting, or coinciding.
Click here to see answer by 303795(602)

Question 168562: I have triangle PAC. Angle P is 30 degrees. Angle A is (x+100) degrees. Angle C is X degrees. I have to find Angle C.
Click here to see answer by MRperkins(300)

Question 170605: I have 2 acute angles and one is 9x and the other is 60+2x how do I get the answer?
Click here to see answer by Alan3354(69443)

Question 171141: In triangle ABC, angle A and B have the same measure. Angle C is 90 degrees larger than both A and B. What are the measures of the 3 angles? Totally lost. Please help me out. Thanks a bunch.
Click here to see answer by jojo14344(1513)

Question 171474: I am not sure how to find the length and width of a rectangle, by looking at the perimeter and area. The question is "A rectangle has an area of 35 sq. ft, and a perimeter of 27 ft. What is the length and width of the rectangle?"
hope you can help!! thank you.
Click here to see answer by monika_p(71)

Question 171497: Gas laws. The volume of gas is inversely proportional to the pressure on the gas. If the volume is 6 cubic centimeters when the pressure on the gas is 8 kilograms per square centimeter, then what is the volume when the pressure is 12 kilograms per square centimeter?
Click here to see answer by stanbon(75887)

Question 171496: Basal energy requirement. The basal energy requirement B is the number of calories that a person needs to maintain the life process. For a 28 yaer-old female with a height of 160 centimeters and a weight of 45 kilograms(kg), B is 1300 calories. If her weight increases to 50kg, then B is 1365 calories. There is a linear equation that expresses B in therms of her weight w. Find the equation and find the basal energy requirement if her weight is 53.2 kg.
Click here to see answer by stanbon(75887)

Question 171880: E=(-4,K) AND F=(K,7) THE SLOPE OF EF IS 2/3, SOLVE FOR K
Click here to see answer by stanbon(75887)

Question 172050: I am so sorry but I am having so much trouble understanding how to figure this out. I am being asked about union and intersections of line and rays and union and intersections of angles. I do not just want the answers I really wnat to understand how to do it. The textbook just does not make it clear to me. I have AD U BC there is a line w/two sided arrow over the AD and a line over BC. The second one BC U CF U FB with a line over all of them without any arrows. The third one is angle HCD intersects(symbol upsidedown U)angle ACF. And the fouth one is angle ICA intersects (symbol is the upsidedown U again) EG-this has a line with the two sided arrrows again.
The line ABCD has two other line crossing it (one at point B and the other at point C)and they intersect to create the top of a triangle above rays BC of line.
I pray this is not too complicated and you can help me anyway. I totally understand if you can't, and I have no money right now to offer any of you but when I do I will make a donation to you. I plan to keep your information so when I can I will contact you. I hope you do not feel like I am just saying this to get help. Honestly.
Again I am not just looking for the answers I need to understand how. Thank you so much in advance.
Click here to see answer by solver91311(24713)

Question 173040: A square piece of a paper is folded in half along the diagonal .the area of the
resulting triangle is 50 square cm . how many centimeters was the perimeter of the original square ?
Click here to see answer by nerdybill(7384)

Question 173303: Find 6�48'59? + 28�19'36?. Write your answer in simplest terms.
Click here to see answer by nerdybill(7384)

Question 173912: what will the maximum area of a regular pentagon with a perimeter of 10,000 feet be?
Click here to see answer by Mathtut(3670)

Question 173955: Find the coordinates of the image for the given point under the translation defind by (x,y) (x + 4,y - 2). I am at a loss with the problem. Please help.
(6, 3)
Click here to see answer by solver91311(24713)

Question 174018: Find the equation of the line passing through the two points (-1,-7)(-1,-6).
Click here to see answer by checkley77(12844)

Question 174013: I am totally lost on this problem. Can someone help me please.
If the points P, Q, R, S, T, U and V are equally spacedand collinear, then find the center and scale factor for the size transformation taking SV to QR.

Click here to see answer by Mathtut(3670)

Question 173994: Please help me understand this question.
Write each of the following as a single transformation.
A rotation about O by 90 degrees counterclockwise, followed by a rotation about O by 30 degrees clockwise.
Click here to see answer by bob123132(33)

Question 174677: Well I am calculating a problem solving froom my school, and I don't quite get the meaning of: Find the diagonals intersecting each other at right angles of a square.
The picture of the square is a square bisected into 4 squares, please help me solve this question and give me explanations of it too...
Click here to see answer by Mathtut(3670)

Question 174974: The town of Elena is 24 miles north and 8 miles west of Holberg. A train runs on a straight track between the two towns. How many miles does it cover? Round your answer to the nearest tenth.
Click here to see answer by stanbon(75887)

Question 175244: I am supposed to write the slope-intercept form of an equation that passes through the given point and is perpendicular to the graph of each equation.
(1,-3), y=1/2x+4
Click here to see answer by solver91311(24713)

Question 175621: Question: If abn athlete runs one lap around the track, how far has she traveled? Use 3.14 for pie and round to the nearest tents. On the picture it shows that the width of the track is 20 yd.
Click here to see answer by EMStelley(208)

Question 175947: Whats is the slope of the line 3y-7=5-2x?
Click here to see answer by vleith(2983)

Question 176242: what are the cordinates of the endponits of line A''B''
given:A(1,3), B(2,5)
rotation: 90 degrees counterclockwise about (2,1)
reflection: in y=x
Click here to see answer by user_dude2008(1862)

Question 176451: Give an equation of each line described. Use the form specified by your teacher.
slope : 2
y-intercept: 5
Click here to see answer by Mathtut(3670)

Question 176604: This question has an image on it, so I can't write it down...
I put an image of it online.
http://i42.tinypic.com/2qd90z7.jpg
Thank you very much!
Click here to see answer by Fombitz(32388)

Question 176606: A kitchen floor measures 12 feet 8 inches wide by 18 feet 9 inches long. The floor is being covered with tiles that are 8 inch squares. How many tiles must be bought to cover the floor?
Please show how you got the answer.
Thanks!
Click here to see answer by Fombitz(32388)

Question 176638: How do I Find the distance between the pair of points (-1,-4) and (-5, -7)
Click here to see answer by solver91311(24713)

Question 176638: How do I Find the distance between the pair of points (-1,-4) and (-5, -7)
Click here to see answer by Mathtut(3670)

Question 176733: Can someone double check my work please.
Find the equation of the line passing through the two points.(2,9)and (0,6)
slope = (y^2 - y1)(x^2 - x1)
slope = (6 + 9)(0 + 2)
slope = 15/2
Did I do this right?
Click here to see answer by solver91311(24713)