Questions on Geometry: Length, distance, coordinates, metric length answered by real tutors!

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Question 466593: the distance between points M(3,5) and N(8,a) is 13.find the value of a.
Click here to see answer by mananth(16946) About Me 
Question 466933: Find the equation of the line that passes through the point (4,4) and is parallel to the line y=-x+3
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Question 466933: Find the equation of the line that passes through the point (4,4) and is parallel to the line y=-x+3
Click here to see answer by robertb(5830) About Me 
Question 466935: Find the equation of the line that passes through the point (0,-9) and is perpendicular to the line x-y=4
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Question 466935: Find the equation of the line that passes through the point (0,-9) and is perpendicular to the line x-y=4
Click here to see answer by Alan3354(69443) About Me 
Question 466990: Can you please help with this problem, I think Im on the right track, but am not sure.
A boat starts at point A, moves 3 km due north, then 2 km due east, then 1 km due south, and then 4 km due east to point B. Find the distance from A to B.
This is how I worked the problem. Is it right?
C=a+b
3sq+6sq
c=9+36
c=45sq root or 6.7km
Click here to see answer by Earlsdon(6294) About Me 
Question 467226: Please help me!! I have no clue how to figure this one out. I'd really appreciate help.
"Two of the sides of a triangular lot have lengths of 90 feet and 80 feet. If the angle opposite the 80-foot side is 59°, what is the length of the third side of the lot to the nearest tenth of a foot?"
My choices are:

A. 10 ft
B. 65.1 ft
C. 67.5 ft
D. 57.9 ft
THANK YOU :)
Click here to see answer by Big Poop(157) About Me 
Question 467334: <1=<2
m<1=2x+y
m<2=y+40
please explain to me how do they solve that. and the rules too. PLEASE thank you
Click here to see answer by Alan3354(69443) About Me 
Question 467165: a lookout tower casts a shadow 200 feet long at the same time that the shadow of a 8 foot truck is 16 feet long. find the height of the tower.
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Question 467678: I am in need of help please
I have a question that says 0.25mi to ft. using dimensional analysis to convert.
thank you
Click here to see answer by Alan3354(69443) About Me 
Question 468314: find the area of a sector with a central angle of 270 and the radius of 11.5m round to the nearest
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Question 469155: What Is The Slope Of A Line parallel to y = -2/5x + 4/5
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Question 469212: Point A is at (4,6) and point B is at (-4,0) in the xy coordinate plane. What is the length of the line segment AB?
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Question 469212: Point A is at (4,6) and point B is at (-4,0) in the xy coordinate plane. What is the length of the line segment AB?
Click here to see answer by Tatiana_Stebko(1539) About Me 
Question 469592: find the length of the segment joining points with coordinates -49 and 6
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Question 470618: Which speed is the fastest (use 1 mile ¡Ö 1.6 kilometers)?
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Question 469786: Find EF.
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Question 470862: Use the Pythagorean Theorem to find the distance to the nearest tenth, between F(9, 5) and G(-2, 2)
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Question 470878: A circle has it's center at (2,-1) and one end of the diameter at (5,1). Find the other end of the diameter..
that is one of the question i can't answer, please help me with that.. and please give me the formula for that.. thank you...
Click here to see answer by ewatrrr(24785) About Me 
Question 471294: The base of a triangular sail is 14 m shorter than its height. The area is 120 m^2. Find the base and height of the sail.
I'm not sure what the formula would be for this.
Click here to see answer by imapoet_2003(3) About Me 
Question 471963: If Connie has 1 1/2 bups of flour and a cake recipe calls for 1 1/4 cups of flour, then what percent of her flour will she use to make the cake?
Click here to see answer by stanbon(75887) About Me 
Question 471985: What is 5 3/4 inches minus 1/8 inch?
Click here to see answer by nerdybill(7384) About Me 
Question 473316: please help me to solve this equation:what is the equation of a line whose x and y intercept are 3 and 5, respectively
Click here to see answer by Tatiana_Stebko(1539) About Me 
Question 475405: The slope of a line is -2. What is the slope of a line that is parallel to it?
Click here to see answer by jessica.k.2013(2) About Me 
Question 475912: If ZY = 5, XC = 3, DC = 4, then XY =


how would i figure out XY?
Click here to see answer by richard1234(7193) About Me 
Question 477103: M is the midpoint of AB. Find the coordinates of B given A(3,8) and M(5,4). I keep coming up with 4, 6.
Click here to see answer by solver91311(24713) About Me 
Question 478344: i need to write this ratio in simplest form:
5 square yards to 25 square feet
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Question 478812: what are the coordinates of the (-2,4) under a 90 degree clockwise rotation around the origin?
Click here to see answer by MathLover1(20849) About Me 
Question 478812: what are the coordinates of the (-2,4) under a 90 degree clockwise rotation around the origin?
Click here to see answer by ewatrrr(24785) About Me 
Question 478812: what are the coordinates of the (-2,4) under a 90 degree clockwise rotation around the origin?
Click here to see answer by Theo(13342) About Me 
Question 478935: how many 2x6 pieces of 16-foot lumber will I need to surface a covered porch if the porch measures 16 feet by 14 feet?
Click here to see answer by cleomenius(959) About Me 
Question 478959: I need to carpet 2 rooms. One room is 9ft x 12ft. the other is 12ft. by 12ft. If I have 50 sq. yds. of carpet on hand, how many square yards will I have left after I finish the job?
Click here to see answer by Alan3354(69443) About Me 
Question 480229: Add 86°14’23”+ 16°53’10”
Thank you
Click here to see answer by Alan3354(69443) About Me 
Question 480419: A recreation room has the following dimensions. Carpeting will cost $1.50 a square foot. How many square feet of carpet will be needed and how much will it cost? Include correct units at each stage within your solution.
first floor is: 30 ft length and 12 height
sec. floor is : 8ft length and 8 ft height
Click here to see answer by MathLover1(20849) About Me 
Question 480961: a rectangular lot measures 130 ft by 170 ft is completely fenced. what the length in feet of the fence
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Question 481173: Hi, I would like to see if an 18ft ladder will fit in an 10ft cubic van?
Thanks
Click here to see answer by nerdybill(7384) About Me 
Question 481706: Given: ST=3x+3 and TU=2x+9.
What is the value of ST?
What is the value of TU?
Click here to see answer by Alan3354(69443) About Me 
Question 481928: in rectangle abcd side ab measures 6cm and side bc measures 3cm points f and g are on side cd with segment df measuring 1 cm and segment gc measuring 2cm. If lines af and bg intersect at e how many cm^2 are in the triangle aeb?
Plz help asap ^_^
Click here to see answer by solver91311(24713) About Me 
Question 482336: The diameter of the earth is approximately 8000 miles. Heavenly Helen, in a spaceship 100 miles above the earth, sights Earthly Earnest coming over the horizon. Approximately how far apart are Helen and Earnest?
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Question 482392: There are 4 members of a band, and they all walk at different rates. Only 2 people can cross the bridge at the same time, and the two peopl have to wal at the same sppeed of the slowest walker. Whoever goes across the bridge has to have a flashlight and so someone must always carry the flashlight. Here is how long it takes each person to cross the bridge. Tyler 1 minute, Beach 2 minutes, Grace 5 minutes and coleen 10 minutes. you cannot cary another person or toss the flashlight back across the river. Can you find a way to get everyone across in no more than 17 minutes if so explain if not explain
Click here to see answer by scott8148(6628) About Me 
Question 482392: There are 4 members of a band, and they all walk at different rates. Only 2 people can cross the bridge at the same time, and the two peopl have to wal at the same sppeed of the slowest walker. Whoever goes across the bridge has to have a flashlight and so someone must always carry the flashlight. Here is how long it takes each person to cross the bridge. Tyler 1 minute, Beach 2 minutes, Grace 5 minutes and coleen 10 minutes. you cannot cary another person or toss the flashlight back across the river. Can you find a way to get everyone across in no more than 17 minutes if so explain if not explain
Click here to see answer by Edwin McCravy(20054) About Me 
Question 482448: c is the midpoint of ab, d is the midpoint of ac, e is the midpoint of ad, f is the midpoint of ed, g is the midpoint of ef, and h is the midpoint of db. if dc is =16 find gh.
Click here to see answer by cleomenius(959) About Me 
Question 482448: c is the midpoint of ab, d is the midpoint of ac, e is the midpoint of ad, f is the midpoint of ed, g is the midpoint of ef, and h is the midpoint of db. if dc is =16 find gh.
Click here to see answer by MathTherapy(10551) About Me 
Question 483854: A train moving at uniform speed takes 20 seconds to pass a cyclist riding at 11 km/hr but only 9 seconds to pass a post. find its length.
Click here to see answer by ankor@dixie-net.com(22740) About Me 
Question 484522: please help me with this question........ find the precision of 9 and a half inches
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