Friday

October 9, 2015
Number of results: 6,093

**Trigonometry:Angles of Elevation and Depression**

Due to a storm, a pilot flying at an altitude of 528 feet has to land early. If he has a horizontal distance of 2000 feet to land, at what angle of depression should he land? Please show your work. Thanks in advance.
*May 1, 2011 by A.J*

**Trigonometry **

A balloon is flying west of two trigonometry students who are 7 miles apart. The angles of elevation of the two students to the balloon are 15 and 28 degrees. Approximate how high the balloon is flying.
*November 3, 2014 by Bailey*

**MATH TRIG**

FROM A DISTANCE OF 80 M. THE ANGLE OF ELEVATION OF THE TOP OF A FLAGPOLE IS 18 DEGREES. dETERMINE THE HEIGHT OF THE FLAGPOLE.(NEAREST TETH OF A M. mY CONFUSION IS ANGLE OF DEPRESSION AND ANGLE OF ELEVATION. mY TECHER CALLS FROM TOP ELEVATION WHILE i INSIST ELEVATION IS FROM ...
*May 13, 2009 by JASON*

**Trigonometry**

A passenger in an airplane flying at an altitude of 10 kilometers sees two towns directly to the left of the plane. The angles of depression to the towns are 28 and 55. How far apart are the towns?
*February 4, 2013 by AwesomeGuy*

**Trigonometry**

An observer in a lighthouse 350 feet above sea level observes two ships directly offshore. The angles of depression to the ships are 4 and 6.5. How far apart are the ships?
*February 4, 2013 by AwesomeGuy*

**trigonometry**

From a point 150 ft from the base of a building the top and the base of a flagpole on a roof edge have angles of elevation of 27degrees49' and 21degrees42' respectively. Find the height of the pole.
*January 6, 2014 by nina*

**trigonometry**

An aeroplane at an altitude of 200m observes the angles of depression of opposite points on the two banks of a river to be 45 degree and 60 degree. Find in metres, the width of river.
*January 4, 2011 by vad*

**Trigonometry**

An observer on a cliff 1000 dm above sea level sights two ships due east. the angles of depression of the ships are 44o and 32o. Find the distance between the ships.
*February 22, 2013 by Need help really fast!*

**trigonometry**

Draw and explain an angle of elevation of the top of a building is 60 degrees and the angle of depression of its base is 15 degrees observed from a window of another building 15m.away.
*January 22, 2014 by irish*

**Math-Trigonometry **

The angles of elevation to the top of a mountain are measured from beacons A(22) and B(40) at sea. If the beacons are 125m apart, how high is the mountain?
*August 26, 2015 by Lucifer Mato *

**Right angle trigonometry**

A sailor sights both the bottom and top of a lighthouse that is 20 and m high and which stands on the edge of a cliff. The two angles of elevation are 3 and 42. To the nearest meter, how far is the boat from the cliff?
*April 25, 2013 by Kayla*

**Math (trigonometry)**

A surveyor wishes to find the height of a mountain. He selects points A and B on level ground along the same line of sight to the mountain. He measures the distance AB to be 1503 m and the angles of elevation of the top of the mountain from the points to be 16.9 from A and 22...
*December 2, 2012 by Sammy*

**trigonometry**

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 and to the other is 55. How far apart are the cars? (Round your ...
*December 2, 2012 by heather*

**Trigonometry (Math)**

From a point 5m. above the water surface, the angle of elevation of the top of a certain tree is 4010' while the angle of depression to the foot of the tree is 6320'. Find the height of the tree and the distance from the point of observation. -Complete Solution Please. Thanks:)
*September 22, 2014 by choleng13*

**Trigonometry**

From a window of one building, the angle of depression to the base of the second building is 29.5, and the angle of elevation to the top is 47.833333. If the building are 200m apart, how high is the second building?
*March 2, 2015 by hasdasd*

**Trigonometry (Math)**

From the top of a building 70 ft. high, two objects in a straight line from the building are observed at angles of depression of 28 and 416' respectively. Find the distance between the two objects. -Complete Solution please. :'(
*February 7, 2012 by Alianne*

**trigonometry**

A lighthouse BC of unknown height stands on the edge of a cliff AB. From a point O, 2500 ft from the base of the cliff, an observer measures the angles of elevation of the top and bottom of the lighthouse and finds them to be 1540' and 1213'. How high is the lighthouse.
*March 21, 2010 by Michael*

**trig**

A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 4 mi apart, to be x = 27 and y = 53, as shown in the figure. (Round your answers to two decimal places.) (a) Find the distance of the plane from point A. mi (b) Find the ...
*September 30, 2011 by stellar*

**trigonometry**

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway, both on one side of the plane. If the angle of depression to one car is 34 and to the other is 51, how far apart are the cars? (Round your ...
*December 2, 2012 by heather*

**trigonometry**

From a point 55 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35 degree and 49 degree 20 minutes, respectively, Find the height of the steeple. (Round your answer to one decimal place).
*March 5, 2013 by andre lessa*

**College Trigonometry**

From a point 200 yards from the foot of a building, the angle of elevation to the top of the building is 37 degrees. Find the measure of the angles of the triangle formed by the building, the ground, and the line of sight to the top of the building?
*January 16, 2013 by Marie*

**trig**

A man standing 9 meters above the ground observes the angles of elevation and depression of the top and bottom,of the top of the monument in luneta 6 degrees and 50 minutes and 7 degrees and 30 minutes respectively.Find the height of the monument?
*February 14, 2011 by wenjelin*

**trig**

A man standing 9 meters above the ground observes the angles of elevation and depression of the top and bottom,of the top of the monument in luneta 6 degrees and 50 minutes and 7 degrees and 30 minutes respectively.Find the height of the monument?
*February 15, 2011 by wenjelin*

**Trigonometry**

An airplane is sighted at the same time by two ground observers who are 2 miles apart and both directly west of the airplane. They report the angles of elevation as 11˚ and 20˚. How high is the airplane? Round to the nearest hundredth of a mile.
*August 5, 2015 by Remy*

**TRIGNOMETRYY**

FROM A WINDOW 9M ABOVE GROUND OF HOUSE IN A STREET ANGLES OF ELEVATION AND DEPRESSION OF TOP AND FOOT OF ANOTHER HOUSE ON OPPOSITE SIDE OF STREET ARE 30DEGREE AND 60DEGREE FIND HEIGHT OF OPPOSITE HOUSE AND WIDTH OF STREET.
*November 29, 2014 by sarth*

**Math - trigonometry**

A bridge is 70m long. From the ends of the bridge the angles of depression of a point on a river under the bridge are 41 degrees and 48 degrees. How high is the bridge above the river?
*January 10, 2010 by anonymous*

**math trigonometry**

two office towers are 31 m apart. From the top of the shorter tower, the angle of elevation to the top of the tall tower is 25 degrees . The angle of depression to the base of the taller tower is 31 degrees. Calculate the height of each tower
*April 13, 2014 by john*

**trigonometry**

R and S are in the same horizontal plane as the base of a cliff, but R is 132.6 meters nearer it than is S. They find the angles of elevation of the top of the cliff to be 32 degrees and 36 minutes and 63 degrees and 13 minutes. how high is the cliff?
*November 2, 2011 by danica*

**Trigonometry **

The angles of elevation of an office building as observed from the top and ground level of a 10 meters tall residential building are 68 and 72 respectively. How tall is the office building? How far apart are the two buildings?
*July 18, 2015 by Kate*

**Trig**

A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 3 mi apart, to be angle x = 31 and angle y = 49, as shown in the figure. (Round your answers to two decimal places.) Find the distance of the plane from point A. Find the ...
*February 29, 2012 by Dan*

**trigonometry**

From the top of a hill 700 ft high an observer notes that the angles of depression of two successive markerstones on a level ground, which leads straight away from the hill are 5 degree and 15 degree respectively. Find the distance between the two markerstones.
*January 18, 2012 by joan*

**Trigonometry**

Angle of Depression Find the angle of depression from the top of the lighthouse 250 feet above water level to the water line of a ship 2.5 miles offshore.
*February 4, 2013 by AwesomeGuy*

**Trigonometry**

Two points, A and D, are in a horizontal line with the foot of a tower, CB, and on opposite sides. The distance between A and D is 535.4 feet while the angles of elevation of the top B are 12 degrees 46 minutes from A and 18 degrees 38 minutes from D. Let the perpendicular ...
*April 26, 2010 by Alivia *

**trigonometry**

The angles of elevation of the top of a tower as observed from the bottom and top of a building of height 6th are 60 and 45 respectively.The distance of the base of the tower from the base of the building?
*October 23, 2014 by asmita*

**Trigonometry **

A climber, working his way up a vertical cliff stops for a rest on the ledge. The ledge where he stopped is 12 meters wude. The angle of depression from the edge of the ledge to the bottom of the cliff is 72 degree and the angle of elevation to the top of the cliff is 88 ...
*December 10, 2011 by Tomina*

**Trigonometry**

A 30foot flagstaff is fixed in the center of a circular tower 40 feet in diameter. From a point in the same horizontal plane as the foot of the tower the angles of elevation of the top of the flagstaff and the top of the tower are found to be 36 and 30 degree respectively. ...
*August 31, 2014 by Anonymous*

**Trigonometry **

From an observation tower that overlooks a small lake, the angles of depression of point A, on one side of the lake, and point B, on the opposite side of the lake are, 7degrees and 13degrees, respectively. The points and the tower are in the same vertical plane and the ...
*January 2, 2013 by Marika *

**trigonometry**

From lookout tower 80ft. high, a man observes from a position 6.5 ft. below the top of the tower that the angle of elevation of the top of the certain tree is 12deg40mins and the angle of depression of its base is 70deg20mins. If the base oof the tower and the base of the tree...
*August 14, 2010 by Winsel*

**Trigonometry**

In travelling across flat land, you notice a mountain directly in front of you. Its angle of elevation (to the peak) is 4.5. After you drive 13 miles closer to the mountain, the angle of elevation is 9.5.
*September 15, 2015 by Anonymous*

**Trigonometry**

Two observers who are 2 miles apart on a horizontal plane observe a balloon in a same vertical plane with themselves. the angles of elevation are 50 degrees and 65 degrees respectively. find the height of the balloon,(a)if it is between the observers;(b)if it is on the same ...
*August 2, 2014 by Jam*

**Math - Trigonometry**

From an aeroplane, at an altitude of 2.3km, the angle of depression of the airport is 32Degrees and the angle of depression of the town is 18degrees (both are in direct line ahead of the plane) How far is the town from the airport?
*May 13, 2014 by Kiirsty*

**trigonometry**

two points, A and B, are 526 meters apart on a level strecth of road leading to a hill. The angle of elevation of the hilltop from A is 26deg30mins, and the angle of elevation from B is 36deg40mins. How high is the hill?
*August 11, 2010 by Winsel*

**trigonometry**

howard and keight who are 2km apart are on a horizontal plane observe a balloon in the same vertical plane with themselves the angles of elevation are 50 degrees and 65 degrees respectively find the height of the balloon. A.if its situated between howard and keight B.If it is...
*March 19, 2012 by carlo*

**trigonometry**

From the top of the waterfalls, the angles of depression of the foot and the top of the tree are 39 and 24 , respectively. If the tree is 3 m from the foot of the waterfalls, how high is the waterfalls??
*January 13, 2015 by yop*

**Health, Psychology-Depression question**

I am doing a report about depression and I was looking for opinions. Do you believe depression is curable without prescription drugs?(can certain foods help, can depression just go away, etc. )I know some people do not want to take prescription drugs for their depression so ...
*October 15, 2007 by Camron*

**Trigonometry **

The measure of one of the equal angles in an isoscles trinagle is twice the measure of the remaining angle. Determine the exact radian measures of the three angles in the triange
*October 26, 2009 by Anonymous*

**plane and trigonometry **

a 30 foot flagstaff is fixed in the center of a circular tower 40 feet in diameter. from a point in the same horizontal plane as the foot of the tower the angles of elevation of the top of the flagstaff and the top of the tower is 30 degree repectively. find the height of the ...
*July 16, 2013 by rhen songalia*

**construct a triangle**

How can I construct a triangle ABC with vertices A(-4,2), B(4,3), C(1,-3). what are the angles in order from least measure to greatest measure Since you will have to use trigonometry to find the angles, surely you must know how to plot points. take the slope of each of the ...
*August 8, 2007 by Sam*

**trigonometry**

two pieces of wire stretched from the top, M of a vertical pole to the points L and N on the horizontal ground. the angle of depression of L from N =65 degrees. N is on the opposite side of the pole(from left)at an angle of depression of 72 degrees from M. Find the length of ...
*April 23, 2012 by lindsay*

**trig**

From the top of a tower of height 75m, a man sees two goats, both due west of him. If the angles of depression of the two goats are 10 degrees and 17 degrees, calculate the distance between them. It wants the angle of depression. I , myself, don't understand the question or ...
*November 17, 2014 by Anonymous *

**trigonometry**

Mickey determines that the angle of elevation from his position to the top of the tower is 52. He measures the angle of elevation again from a point 47 meters farther from the tower and finds to be 31. Both positions are due East of the tower. Find the height of the tower.
*January 11, 2015 by maniru*

**trigonometry**

From the roof of the building 25 meters high, the angle of elevation of the top of the pole is 2111 , from the bottom of the building, the angle of elevation is 432, determine the height of the pole .
*July 27, 2015 by lyn*

**trigonometry**

From the roof of the building 25 meters high, the angle of elevation of the top of the pole is 2111 , from the bottom of the building, the angle of elevation is 432, determine the height of the pole .
*July 27, 2015 by yn*

**math 2 trigonometry**

give me the solution from the top of a building the angle of depression of a point on the same horizontal plane with the base of the building is observed to be 60 degree what will be the angle of depression of the same point when viewed from a position one third of the way up ...
*September 25, 2012 by amadorlinas*

**trigonometry**

the pilot in an airplane observes the angle of depression of a light directly below his line of sight to be 30.4 degrees. a minute later, its angle of depression is 43.0 degrees. if he is flying horizontally in a straight course at the rate of 150 mph, find the altitude at ...
*August 26, 2014 by rhinechilde*

**chemistry**

I'm starting to learn about colligative properties and i want to know if there are different equations for boiling point elevation and freezing point depression? In the book they give me the equation: (delta)Tb= Kb times molality. But my teacher gave us: delta Tb = Kb times # ...
*June 1, 2010 by jenny*

**trigonometry**

as you walk on a straight level path toward a mountain, the measure of the angle of elevation to the peak from one point is 33 degrees. From a point 1000 feet closer, the angle of elevation is 35 feet. How high is the mountain?
*January 29, 2013 by noel chavez*

**Trigonometry**

Height of a mountain While traveling across flat land, you notice a mountain directly in front of you. The angle of elevation to the peak is 2.5. After you drive 18 miles closer to the mountain, the angle of elevation is 10. Approximate the height of the mountain.
*February 4, 2013 by AwesomeGuy*

**Precalculus**

1. A man stands 12 feet from a statue. The angle of elevation from the eye level to the top of the statue is 30 degrees, and the angle of depression to the base of the statue is 15. How tall in the statue? 2. Two boats lie on a straight line with the base of a lighthouse. From...
*March 2, 2009 by Mz. Suzie*

**Math**

1. A rangers tower is located 44m from a tall tree. From the top of the tower, the angle of elevation to the top of the tree is 28 degrees and the angle of depression to the base is 36 degrees. How tall is the tree? 2. An engineer determines that the angle of elevation from ...
*February 6, 2014 by Tsunayoshi*

**Math**

3) From two tracking stations A and B, 350 km apart, a UFO is sighted at C above AB making angle CAB = 32 degrees and angle CBA = 54 degrees. Find the height of the UFO. The answer is 150 km, please explain to me how 4) from a boat on the water, the angle of elevation at the ...
*November 24, 2012 by Crystal*

**Algebra/Trig Check Answers please **

Can you please check these answers thanks 1. A ladder 14 feet long is leaning against a house. The foot of the ladder is 4.8 feet from the house. Find the angle of elevation of the ladder and the height it reaches on the house. Answer: 13.2=height 18.9 =angle of elevation 2. ...
*February 11, 2012 by Missy*

**trig**

A plane is flying 12,000 feet horizontally from a tall, vertical cliff. The angle of elevation from the plane to the top of the cliff is 45degrees, while the angle of depression from the plane to a point on the cliff at elevation 8000 feet is 14degrees. Find the height of the ...
*October 15, 2012 by Mae*

**Math**

Which of the following correctly lists angle pairs that have the same sums of 180 degrees & 90 degrees? A. adjacent angles, congruent angles B. complementary angles, vertical angles C. supplementary angles, complementary angles*** D. vertical angles, adjacent angles Is it C?
*February 25, 2015 by Natasha*

**trigonometry**

a man measured the angle of elevation of the top of a tower to be 70 degree. When he walked 300 m. further, the angle of elevation of the top was 35 degree. What is the height of the tower?
*July 12, 2011 by eekim*

**Trigonometry**

The shadow of an electric pole is 5 m. long when thr angle of elevation of the seen is 60 degrees. Find the length of the shadow when the angle of elevation of the seen is 45 degrees
*February 8, 2015 by Res*

**Pre-Calc**

A hot-air balloon is floating above a straight road. To estimate their height above the ground, the balloonists simultaneously measure the angle of depression to two consecutive mileposts on the road on the same side of the balloon. The angles of depression are found to be 24...
*March 23, 2012 by John *

**trigonometry pls help**

Howard is flying a kite and wants to find its angle of elevation. The string on the kite is 32 meters long and the kite is level with the top of a building that he knows is 28 meters high. To the nearest tenth of a degree, find the angle of elevation. Show your work.
*April 25, 2015 by allexelle*

**Math (Trigonometry) **

Zola can see the top of 180m cell phone at an angle of elevation of 32 degrees, and Naeem can see it an angle of elevation of 50 degrees. How far apart are Zola and Naeem if they are on a straight line with the tower? There are two possibilities.
*September 13, 2015 by Luisa*

**Trigonometry**

Hi! The question is really confusing to me. I can't sketch/visualize the problem. :( From a given position an observer notes that the angle of elevation of a rock is 47 degrees. After walking 1000 feet towards the rock, up a slope of 32 degrees, he finds the angle of elevation...
*August 2, 2014 by Xiumin*

**Per-calc Helppppp**

keep in mind answers should be pi radians or if necessary 3 dec. csc^2-2=0 all angles 4cos^2x-4cosx+1=0 all angles and name 8 angles 7sin^2x-22sinx+3=0 all angles and name 8 angles 2cos^2x-7cosx=-3 all angles sinx(2sinx+1)=0 all angles
*April 19, 2012 by Amanda*

**Trigonometry**

Karla is riding vertically in a hot air balloon, directly over a point P on the ground. Karla spots a parked car on the ground at an angle of depression of 30o. The balloon rises 50 meters. Now the angle of depression to the car is 35. How far is the car from point P?
*October 26, 2012 by Allison*

**trigonometry**

Can you tell me if these answer is correct. 1. From a boat on the lake, the angle of elevation to the top of a cliff is 35degrees13'. if the base of the cliff is 2664 feet from the boat, how high is the cliff(to the nearest foot)? i got 1880 feet. is this correct. and this one...
*January 7, 2009 by please check*

**Trigonometry**

A space shuttle pilot flying over the suez canal finds that the angle of depression to one end of the canal is 38.25 degrees and the angle of depression to the other end is 52.75 degrees. If the canal is 100.6 miles long, find the altitude of the space shuttle
*October 4, 2010 by TIA*

**trigonometry**

a space shuttle pilot flying toward the suez canal finds that the angle of depression on one end of the canal is 38.5 degree and the angle of depression to the other end is 52.75 degree. if the canal is 100.6 mi long, find the altitude of the space shuttle.
*December 10, 2012 by riza*

**Algebra**

I'm fine with angle of elevation problem, but angle of depression problems are tricky for me. Is this right? From a balloon 835 m high, a command post is seen with an angle of depression of 7 degrees. How far is it from the point on the ground directly below the balloon to the...
*May 14, 2008 by Samantha*

**Math Trigonometry**

A man is 6 ft. tall casts a shadow of 8 ft. find the angle of elevation of the sun.
*June 18, 2015 by Shelou*

**Trig**

I have no idea how to do this problem From an airplane flying 2 kilometers aboce the ocean, a piolet sees two ships directly to the east. The angles of depression to the ships are 8 degrees 20 minutes and 75 degrees 40 minutes how far away are the ships? I know what the anlge ...
*September 11, 2009 by Trig*

**Trigonometry**

5. A backpacker notes that from a certain point on level ground, the angle of elevation to a point at the top of a tree is 34o. After walking 50 closer to the tree, the backpacker notes that the angle of elevation is 54o. Find the height of the tree.
*March 1, 2015 by Marla*

**trigonometry**

An observer at A looks due north and sees a meteor with an angle of elevation of 70deg. At the same instant, another observer 30miles east of A, sees the same meteor and apprroximates its position as N 50deg W but fails to note its angle of elevation. Find the height of the ...
*August 10, 2010 by Winsel*

**Trigonometry**

Find the angle of elevation of the sun when a tree that is 10 yd tall cast a shadow 14 yds long
*March 5, 2012 by :)*

**trigonometry**

a surveyor 1standing on a highway observed the angle of elevation of the airplain as 22.5. at the same time, a surveyor 2 observed the angle of elevation of the same airplane to be 30. if the airplane was 850m directly above a point on the highway, find the distance between ...
*January 12, 2015 by betty*

**Math**

Two parallel lines cut by a transversal can create all the following types of angles except A. Alternate interior angles B. Alternate exterior angles C. Corresponding angles D. Complementary angles
*January 3, 2010 by S *

**trigonometry**

a surveyor finds that from Point A on the ground the angle of elevation to the top of a mountin is 23 degrees. when he is at point B that is 1/4 closer to the base of the mountain the angle of elevation is 43 degrees. how high is the moutnain? One mile =5280 feet. (Assume that...
*April 12, 2011 by carla*

**Trigonometry **

How do u find the angles of a triangle whose sides are in the ratio 2:4:5?
*November 6, 2012 by Kevin *

**Maths- Trigonometry**

4. A,B and C are points on a horizontal plane. A is 75 m from C on a bearing of 210 degrees and the bearing of B from C is 120 degrees. The bearing of B from A is 075 degrees. From A the angle of elevation of the top T of a vertical towel at C is 42 degrees. Find a. the ...
*March 3, 2012 by Jack*

**7th grade**

please explain 'angle of depression' and angle of elevation ..pls also use a diagram
*May 16, 2009 by can*

**Trigonometry**

The angle of elevation of the sun is 20 degrees. At the same time,how long is the shadow cast by a building 50 meter high?
*May 18, 2011 by fakku*

**Trigonometry**

Find the angle of elevation of the sun when a tower 100m high casts a shadow of 120 meter long?
*May 18, 2011 by fakku*

**trigonometry **

An airplane flying at an altitude of 5100 ft is 12000 feet from an airport. what is the angle of elevation of the plane? I don't know how to start the problem.
*September 21, 2014 by Les*

**Trigonometry**

a person standing 400 feet from the base of a mountain measures the angle of elevation from the ground to the top of the mountain to be 25 degrees, the person then walk 500 feet straight back and measures the angle of elevation to now be 20 degrees, how tall is the mountain?
*February 23, 2015 by John*

**math**

What is the meaning of angle of depression and angle of elevation?
*February 17, 2011 by Natasha*

**Math-trigonometry**

Please help me with the steps !i don't understand this. The working arm of a tower crane is 192m high and has a length of 71.6 m. Suppose the hook reaches the ground and moves along the arm of the trolley, a) determine max distance from hook to operator when trolley is fully ...
*October 8, 2014 by Cherie*

**Trigonometry**

Okay, Assume the triangle has the given measurements. Solve for the remaining sides and angles. A = pi/6; a = 17.4; b = 19.6
*April 27, 2011 by Veronica*

**oops geometry**

This conditional statement is true... If two angles are right angles, then they are congruent. The converse is ...If they are congruent, then the angles are right angles This would be false because not all congruent angles are right angles Is this correct
*September 24, 2015 by sweet pea*

**Gr. 12 Math - Trigonometry 3D**

From the top of a 1900 m mountain, the angle of depression to a cathedral that is due east of the mountain is 38 degrees. The angle of depression to a bridge due north of the mountain is 42 degrees. Find the straight-line distance from the cathedral to the bridge. This is a ...
*November 11, 2007 by Michelle*

**Chemistry II**

100 grams of KNO3 is dissolved in one liter of water. Calculate the freezing point depression and boiling point elevation.
*March 14, 2011 by Michelle*

**geometry**

Angles 1 and 7 are alternate exterior angles of a transversal cutting two parallel lines. If m(1)=4x+10 and m(7)=6x+4, what are the measures of angles 1 and 7? Give a property of angles that helped you solve the problem.
*February 10, 2010 by nicole*

**math**

This conditional statement is true... If two angles are right angles, then they are congruent. The converse is ...If they are congruent, then the angles are right angles This would be false because not all congruent angles are right angles Is this correct
*September 24, 2015 by sweet pea*

**geometry**

If Quadrilateral QRST is a parallelogram, which is not necessarily true? a. Opposite angles are congruent. b. The diagonals bisect each other. c. Angles are four right angles. d. Consecutive angles are supplementary.
*January 2, 2011 by whitney*