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March 29, 2017

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Number of results: 21,945

Social Studies
Okay so the economy was booming in 1929 stocks were really high but then the stock market suddenly crashed why did that happen? How did the stock market suddenly just crash?(1929 Great Depression)
December 7, 2009 by Sarah

Applied Behavioral
According to your text, jarjuana has been successfully used to treat 1. nausea and glaucoma 2 depression and nausea 3 alcoholism and stomach ulcrs 4 nausea and stomach ulcers my answer is nausea and glaucoma
December 8, 2012 by Regina

Algebra II
1)Rewrite 5pi/4 radians in degree measure. Answer: 225 2) Which angle is coterminal with a -400 degree angle in standard position? Answer: 40 Thanks for checking my answers:)
April 6, 2008 by Lucy

Geometry(Very Urgent!!!)
Triangle NQP is an equilateral triangle with the measure of angle N=5x-2y and the measure of angle P=x+2y. Find the values of x and y. Show all work to receive credit.
November 5, 2008 by Abbey

Physics
1.A light ray enters from air (n1 = 1.0) onto glass (n2 = 1.5). Calculate Θ2 (transmission angle) values for Θ1 (incident angle) values 10, 20, 30, 40, 50, 60, 70, 80 degrees, respectively.
February 1, 2009 by Jeff Helper

Physics
A ray of light is incident at an angle of 51.1 degrees on the surface of a piece of crown glass whose index of refraction is 1.52 degrees. What is the angle of refraction? Answer in units of .
February 24, 2011 by Maria

Physics
If a box is being pulled up a hill at an angle to find work, its W=Fdcos(angle) If a hiker is walking up a hill, the work done is W=mgh right? When do you know when you can use what formula?
March 14, 2011 by John

Geometry
Use any tools to construct each of the following, if possible: a. A right triangle with one acute angle measuring 75° and a leg of 5 cm on a side of the 75° angle b. A triangle with angles measuring 30°, 60°, and 90°
August 1, 2011 by Adalgisa

physics2
12) The light velocity in certain liquid is 240000 km / s. Beam falls from air on surface of this liquid under angle 30 . Find refraction angle of the beam.
December 4, 2011 by Anonymous

Physics :)
The vector F is (12.0, −3.00) in rectangular notation. What is this same vector in polar notation? Express the angle as a positive number between 0° and 360°. I got 12.4, just can't get the angle.
May 25, 2012 by Chris

geometry
the sum of the measures of two acute angles is 110 degree.the suplement of the smaller anngle is 15 times the complement of the larger angle.what are the measures of the two angle?
July 14, 2012 by cj

Algebra
In triangle GHI, angle H is a right angle, GH=40, and cos G=40/41. Find each value in fraction and in decimal form. a. sin G b. sin I c. cot G d. csc G e. cos I f. sec H
December 19, 2012 by Lavanda

Geometry
In acute triangle ABC, we have \angle CAB = 34 ^\circ . E is the foot of the perpendicular from B to AC. A point H is on BE is chosen, and X is the foot of the perpendicular from H to AB. What is the measure (in degrees) of \angle EHX?
February 27, 2013 by John

Geometry
In acute triangle ABC, we have \angle CAB = 34 ^\circ . E is the foot of the perpendicular from B to AC. A point H is on BE is chosen, and X is the foot of the perpendicular from H to AB. What is the measure (in degrees) of \angle of EHX?
March 1, 2013 by John

Physics
Vector A is described as having magnitude -7 and angle 30degress. Which is an equivaent statement of magnitude and angle of vector A? (Note: All angles are measured counterclockwise from x-axis.)
April 15, 2013 by Eaden

Trigonometry
a 100 pound box hangs between two ropes T1 and T2 the angle at the top of T1 is 28 degrees and the angle at the top of T2 is 35 degrees. what does T1 and T2 equal? Must show work
November 15, 2013 by Jon

Physics
Please Help! Two ropes hold a 500N weight. Rope A (left) with an angle of 60° and rope B (right) with an angle of 30° to the horizontal. Find the tension in both ropes.
July 21, 2014 by Michael

Geometry
Set up a system to solve. Two angles are complementary. Four times one angle is equal to the other angle plus 10. Find the two angles.
October 8, 2015 by ashley

Math
A balloon 150 meters from the observer is rising vertically at constant rate. After 1 minute the angle of elevation is 28 degrees and 29 minutes. What is the angle after 3 minutes?
June 22, 2016 by Angel

physics
two forces with magnitude of 25N and 18N respectively are inclined at an angle of 120degree to each other. calculate the resultant force and the angle it makes with the 18N force.
October 18, 2016 by okowju Destiny

Science
A box weighing 20lb. is being pushed up an incline. If the angle of incline was 90° to the ground, what effort would be needed to push the mass? I don't get how to get the effort if an angle was in the problem.
February 10, 2017 by Christian

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(Geometry)
determine which lines or segments are parallel. Give a reason for your answer. measure of angle 5= 65 degrees measure of angle 9= 65 degrees
October 2, 2007 by kim

Math
Use your protractor to find the measure of the angle to the nearest degree. 1.Angle S Anyone know how am I suppose to find the degree when it only telling me the vertex(S) ?
September 6, 2010 by Shadow

Trigonometry
r = 1/32 v^2 sin 2 beta v is the initial velocity and beta is the angle of elevation. r = 35000 feet v = 3200 feet per second. What is the angle?
December 6, 2010 by Casey Lewis

Geometry
A right triangle has an angle that measures 55 degress. The leg adjacent to this angle has a length of 43 cm. What is the length of the triangle? Round to the nearest tenth
February 14, 2011 by Marco

math math
the second of a trangle is 3 times as large as the first the third angle is 55 more that the first. find all three angle.
July 19, 2011 by MOSS

geometry
The table shows the exterior angle measures for regular polygons. Which expression represents the exterior angle measure for any regular n-gon?
April 21, 2012 by Anonymous

Geometry
ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of \angle ABC (in degrees)?
March 26, 2013 by Dan

maths
ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of \angle ABC (in degrees)?
March 30, 2013 by rohit

Calculating Critical angle PLEASE HELP
Calculate the critical angle between flint glass and air assuming that index of refraction of the glass is 1.61.
May 22, 2013 by Mike Jones

trig
a central angle intercepts an arc on a circle equal in length to the diameter of the circle. find the measure, in radians, of the central angle.
February 6, 2014 by Anonymous

physics
Calculate the range of the projectile using the initial speed and angle. Use g = 9.8m/s your calculation. Initial speed is 18m/s Angle is 75 Help please !!
April 13, 2015 by jacob

math
Rich has 3 pieces of pizza. Each pizza end forms a 20° angle. If all of the pieces were placed together what would the size of the angle be?
May 7, 2015 by nicole

MLA citation
Which of the following is an example of opinion? A. The Canadian men's hockey team won the gold medal in the 2010 Winter Olympics. B. Abraham Lincoln presented the Gettysburg Address on November 19, 1863. C. The color blue sometimes signifies sadness or depression. D. Organic ...
July 27, 2015 by Daniela

math
do you know a site where i can get an angle measure quiz, angle relationship quiz, and polygons quiz please
September 8, 2008 by melissa

geometry
how do you find the measure of angle t if if the measure of angle t is 20 more than four times the measure of its supplement
September 21, 2010 by quin

5th grade
A quadrilateral has angle measures of 71 degrees, 28 degrees, and 115 degrees. Which is the measure of the last angle?
November 28, 2010 by Nathan

Geometry
Five times the measure of an angle is 48 more than the measure of its supplement. Find the measure of the angle.
January 10, 2012 by Hailey

Geometry! Please, HELP!
The measure of the complement of an angle is equal to 1/5 of the measure of its supplement. Find the measure of this angle.
August 7, 2016 by Timur10393

math CA
1. What are the next two terms in each sequence? 2, 4, 8, 14, 22, … (2 points) 30, 38 30, 40 32, 44 32, 46 2. What are the next two terms in each sequence? 1.3, 2.4, 3.5, 4.6, … (2 points) 5.7, 6.8 5.8, 6.9 6.7, 7.8 7.8, 8.9 3. For questions 3–4, use the diagram below. ...
March 14, 2011 by Jesicca

English
1. Bend your knees and bend your body at a 45 degree angle. (Does this sentence mean 'bend your knee at 45 degree angle or not'?) 2. Bend your knees and bend your body at a 45-degree angle. (Is this correct? There is a hyphen between 45 and degree.)
April 9, 2016 by rfvv

Physics
Light in a vacuum is incident on a transparent glass slab. The angle of incidence is 35.1°. The slab is then immersed in a pool of liquid. When the angle of incidence for the light striking the slab is 21.1°, the angle of refraction for the light entering the slab is the ...
October 6, 2015 by Anonymous

physics
Hi! could anyone please help me with this problem. Thank you so much. Q: The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air.
April 25, 2010 by Chan

physics
A ray of light passes from air into water. The incident angle is 30o. Find the index of refraction of water if the angle of refraction is 22o. Ans. 1.333
November 16, 2010 by Yesenia

Trig-Value of angle degree
For the angle degree 0, i don't understand how for sin it's 0 and then for cos it's 1 and then for csc it's undefined. How would I get that algebraically? wouldn't it be just a line so how would I get the different values?
February 10, 2011 by Amy

Physcis 1
A muscle builder holds the ends of a massless rope. At the center of the rope, a 7.9-kg ball is hung. Each end of the rope subsequently makes an angle of È with the horizontal. What is the tension in the rope if the angle È is 6.0°?
February 10, 2011 by April

physics
The problem concern the position vectors r1=2.43mi-4.74mj and r2=-3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +x-axis.
June 12, 2011 by Wykeena

physics
The problem concern the position vectors r1=2.43mi-4.74mj and r2=-3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +x-axis.
June 12, 2011 by Wykeena

physics
The problem concern the position vectors r1=2.43mi-4.74mj and r2=-3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +x-axis.
June 12, 2011 by Wykeena

geo
a carpenter cut the top section of window frame with a 32 degree angle on each end. The side peices hav an angle of 49 degreese at the top will the side pieces be parallel
December 1, 2011 by shane

College Physics
14) Given the following vectors, find the magnitude and direction: • A = 47 m and the angle is 0° • B = 62 m and the angle is 35° This is relative to the x-axis Magnitude: 401 m 140 m 104 m 0 m 503 m Direction: 20° 45° 55° 220° 90°
December 6, 2012 by Stephen

Alg 1
Solving quadratic equations: What is the value of "b" in the triangle where one part of the right angle is "3b" and the other part of the right angle is "b". The area inside is 24 in^2. Please solve and explain. Thanks
April 6, 2013 by Jane

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

physic
A projectile is launched from the ground at 34.8 m/s at an angle of 44.5 degrees above the horizontal. How long, in seconds, does it take such that its angle of trajectory (it's velocity vector) is 20.6 degrees below the horizontal?
September 24, 2015 by elle

Math
Kay wants to know the length of large pond on property. One stake is at 50m with an angle of 21 degrees. The 65m from the other end of the lake and the angle is 26 degrees. How long is pond?
January 16, 2017 by Stephanie

Math HELPP!!
Eric Drew and up to's triangle. Which of the following could be true for Eric's triangle. A: all three angles have equal measures B: possible angle measures of the triangle are 92, 48, and 40•• C: two of the angles are equal, and the third angle has a measure of 70. D: One...
February 16, 2016 by Jojo

US History
25. The views of President Hoover and President Roosevelt on the best ways to solve the problems of the depression. Describe some actions they took to back up these views. (The first part of the question doesn't make sense to me, but that's how it's written..) I need to write ...
November 4, 2010 by mysterychicken

Geometry
A child on top of a lighthouse observes two ships that are 90 ft apart from each other. The angles of the depression of the two ships are 34º and 20º. How far is the closest ship from the base of the lighthouse? I'm sorry, I would show my work, I just don't know if I could ...
February 2, 2015 by Katie

geometry
A child on top of a lighthouse observes two ships that are 90 ft apart from each other. The angles of the depression of the two ships are 34º and 20º. How far is the closest ship from the base of the lighthouse? I'm sorry, I would show my work, I just don't know if I could ...
February 2, 2015 by Katie

math
from the top of a vertical mast 150m high,two huts on the same ground level are observed. One due east and the other due west of the mast. Their angles of depression are 60° and 45° respectively. Find the distance between the huts. Solutuons with diagram
January 17, 2017 by Folorunsho

Physics
A force vector F of magnitude 12N is applied to a FedEx box of mass m2=1kg. The force is directed up a plane tilted by theta=37 degrees. The box is connected by a cord to a UPS box of mass m1=3kg on the floor. The floor, plane, and pulley are frictionless, and the masses of ...
July 6, 2010 by Rick

science
Find the resultant of vectors angle A of magnitude 10units in the direction N40E and angle B of magnitude 8units in the direction S30E.
April 18, 2010 by KAFAYAT

Physics
2)How to find the magnitude of change in velocity given the angle substended @ and velocity v and find the time taken to travel tt angle?
September 17, 2010 by Lew

geometry
Indirect proof given triangle ABC,<B is an obtuse angle prove there can only be one obtuse angle in triangle.
December 17, 2010 by Alfa

Geometry
An angle measures 5 degrees more than 4 times its complement. What is the angle? I understand that the formula would be 4x+5 degrees. Would this be the answer?
August 31, 2011 by David

geometry
line AB is parallel to line CD, the measurement of angle A=2x-25, and the measurement of angle C=x+5. find the value of x. show work and explain your reasoning.
October 29, 2011 by joseph

Math
Solve triangle ABC if b = 10, c = 9.1, and C = 53.6 degrees. How many solutions are there? First Solution:What are angle A and B and Side a. Second Solution: What are angle A and B and Side a. Thanks!
February 24, 2012 by Rosetano

pre-calc
simplfy the expression by double angle formula or a half angle formula. cos^2(x/2)-sin^2(x/2) 2sin(x/2)cos(x/2)
April 22, 2012 by Amanda

college
The measure of a third angle in an isosceles triangle is 82.5 more than the measure of the two equal angles. whats the angle of the third.
November 8, 2012 by Anonymous

physics
forces of and are applied at the same point. the angle between F1 and F2 is 60.0◦ and the angle between F2 and F3 is 80.0◦. find the resultant force.
February 8, 2013 by resultant force

4th grade math
a circle is divided into 18 equal parts. how many degrees is the angle for each part? how many degrees is the angle for 5 parts?
April 16, 2013 by Anonymous

geometry
Construct trapezium ABCD so that BC equals 6cm,AB equals 3cm,Angle B equals 80degrees and angle C equals 70 degrees.measure BD
February 25, 2014 by iyabo

Science
A ray of light approaches a jar of honey at an angle of 30.0 degrees. If the angle of refraction is 19.5 degrees, what is the refractive index of honey?
July 17, 2014 by Mariam

math
Angles B and F are corrsponding angles formed by a treversal intersecting two parallel lines. Angle B has a measure of 44. what is the measure of Angle F?
September 13, 2014 by brendan

geometry
Two angles join to form a right angle. The measure of one of the angles is 64 degrees. What is the measure of the other angle?
March 20, 2017 by hector

Algebra 2
The point of no return for an airplane, flying over water from point A on land to point B on land, is that distance into the trip for which it takes just as much time to go on to B as it does to return to A. The distance from San Francisco to Honolulu is 2387 miles. A plane ...
November 1, 2011 by Anonymous

Physics
A 100-kg box is suspended from two ropes; the left one makes an angle of 20degrees with the vertical, and the other makes an angle of 40degrees. What is the tension in each rope. I think I've got the basics: I have Fx=T1(x) + T2(x)= 0 to calc the first tension, and Fy= T1(y...
April 22, 2011 by Stephanie

physics
A uniform ladder of mass m and length L leans at an angle θ against a frictionless wall. If the coefficient of static friction between the ladder and the ground is 0.43, what is the minimum angle at which the ladder will not slip? Do i use the equation Fn- Mg= 0
January 17, 2011 by Sydney

Trigonometry
use the appropriate trig identity (sum and difference, half angle, double angle) to find the exact value. 1)cos 255 degrees 2) sin 165 degrees 3) tan 285 degrees
March 3, 2011 by Jennifer

MATH help needed asap
A surveyor, standing 80 ft. from the base of a building, measures the angle of elevation to the top of the building to be 75 degrees. How accurately must the angle be measured for the percentage error in estimating the height of the building to be less than 4%?
October 3, 2013 by Peter

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

science
A straight highway leads to the top of the base of a 50 meter tall tower. Frm the top of the tower, if yhe angles of depression of two cars on the road are 30° and 60° , then the distence between the tow cars is ................meter.
April 24, 2012 by shankar

science
A straight highway leads to the top of the base of a 50 meter tall tower. Frm the top of the tower, if yhe angles of depression of two cars on the road are 30° and 60° , then the distence between the tow cars is ................meter.
April 24, 2012 by shankar

chem
When 0.5mol of a certain ionic substance is dissolved in 1.0kg of water, the freezing point of the resulting solution is -3.72 ∘ C .(Freezing point depression of water is -1.86 kgwater molsoluteparticles ). How many ions does the substance give when it dissolves?
March 26, 2015 by dakota

physics
brandon launches a projectile at an angle of 75 degrees above the horizontal, which strikes the ground a certain distance down range. for what other angle of launch at the same speed would the projectile land just as far away?
December 7, 2010 by sabina

physics
If the ball is in equilibrium when the string makes a 25.9 ◦ angle with the vertical as indicated, what is the net charge on the ball? Answer in units of µC. i know how to do this if i had the balls mass and the electric field or some other information, but im lost with...
February 10, 2011 by Rachel

Physics
Brandon launches a projectile at an angle of 75 degrees above the horizontal, which strikes the ground a certain distance down range. For what other angle of launch at the same speed would the projectile land just as far away?
September 24, 2012 by Baylyn

physics
Collision of charged particles}} A proton moves in vacuum and enters a region where there's another proton at rest. The protons interact and the angle between their velocities is measured when they are far away from each other. What is the most likely value for this angle in ...
February 18, 2013 by can u please help me! please

Math
From two tracking stations, A and B, 450km apart, a satellite is sighted at C directly above the line joining A to B. At the moment of sighting, angle A is 39 and angle B is 45. Find the height of the satellite. Please show all your steps clearly and asap, Thanks
February 16, 2014 by Umar

Physics
For a given initial projectile speed, you observe that the projectile has a certain range R at a launch angle A = 30 degrees. For what other launch angle will the projectile have the same range (assuming the same initial projectile speed)? Without the use of mathematical ...
February 17, 2014 by Tim

trig
a tower that is a 200 meters is leaning to one side. from a certain point on that side, the angle of elevation to the top of the tower is 70 degree. From a point 55 meters closer to the tower, the angle of elevation is 85 degree. Determine the acute angle from the horizontal ...
February 5, 2013 by Anonymous

Physics
A ballistic pendulum consists of an arm of mass M and length L = 0.52 m. One end of the arm is pivoted so that the arm rotates freely in a vertical plane. Initially, the arm is motionless and hangs vertically from the pivot point. A projectile of the same mass M hits the lower...
October 24, 2011 by mymi

Social Studies
What was a key factor contributing to the Whig victory in the presidential election of 1840? A.the endorsement of the Whigs by former president Andrew Jackson B.the economic depression following the Panic of 1837 C.a corruption scandal involving President van Buren D.the ...
February 12, 2013 by Cassie

physics
A mass is hung from a beam of weight 2.0 N and length 81 cm. The tension and angle of the cable supporting the beam is 5.0 N at an angle of 40° from the horizontal. Using torques produced calculate the value of the unknown mass.
November 24, 2009 by Allie

trigo
Two points, A and B, are 526 meters apart on a level stretch 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 3, 2010 by trigofunctions

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

Physics!!!
A rod of length 1m lies in the lab frame making angle θ=30 with the x-axis. Find the length and the angle it makes with the x’-axis as seen by an observer moving at u=0.8c along the y-direction.
March 13, 2011 by Jennifer

trigonometry
Suppose (x, y) =(4, -5) and θ is an angle in standard position with (x, y) on its terminal side. What is the degree measure of angle θ? im not sure how to do this one problem plz show step by step
November 13, 2012 by v

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