Saturday

October 22, 2016
Number of results: 21,029

**history**

When the First World War ended, Americans welcomed what they hoped would be a return to normalcy. The decades that followed, however, are ones which would rarely be described as normal, in comparison to what came before or after. During these decades, a struggle ensued ...

*February 28, 2013 by Jessica*

**law and ethics -nursing**

What ethical dilema could a wife with cancer possibly face? What ethical dilema could her husband possibly face when he has depression that he doesnt treat? There son is a 24 year old whom has down syndrom and needs his parents for care.

*January 9, 2012 by john*

**trig**

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 14, 2012 by Grail*

**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*

**MATH**

Angle C and Angle D are vertical angles. The conclusion is that angle C and angle D are complementary. Which is a counterexample of this conclusion. * 2 vertical angles which are not complementary or * 2 complementary angles which are not vertical

*February 10, 2012 by Millie*

**chemistry**

Calculate the pH at 25 C when 120 mL of a HCl solution having a concentration of 50 mM is added 50.0 mL of a 120 mM ephedrine solution. Assume no change in temperature. Amitriptyline is a drug used in treating depression. It is typically formulated as the hydrochloride ...

*September 9, 2016 by Maria*

**physics**

consider the 666 N weight held by two cables shown below. The left hand cable and tension 530 N and makes an angle of theta2 with the ceiling. The right hand cable had tension 390 N and makes an angle of theta1 with the ceiling. What is the angle theta1 which the right hand ...

*November 14, 2014 by sally*

**Trigonometry**

A lookout spots a fire from a 36 meter tower the angel of depression from the tower to the fire is 21 degrees . To the nearest meter how far is the fire from the base of the tower

*March 5, 2012 by :)*

**Geometry **

How to solve: the measure of an angle is 12 less than twice the measure of its supplement. What is the measure of the angle?

*September 30, 2010 by nikki*

**math**

if the measure of an angle exceeds four times the measure of its complement by 25, what is the measure of the angle?

*August 27, 2012 by Lisa*

**Math**

The measure of one angle is 38 degrees less than the measure of its supplement. What is the measure of each angle?

*June 12, 2016 by Jason*

**Geometry**

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**

A diagram of airport runway intersections shows 2 parallel runways. A taxiway crosses both runways. If angle 8 measures 119, wwhat is the sum of the measures of angle 1 and 4? I think that the answer is 238. Is this right?

*November 23, 2007 by keisha*

**Geometry**

In Triangle RST, SR < ST and RT > ST. If angle R = 2x + 10 and angle T = 3x - 25, which is a possible value of x? f. 25 g. 30 h. 35 j. 40 So far I've just drawn a picture for reference and I've been pondering about the problem for about 15 to 20 minutes now. My question ...

*January 31, 2009 by Anonymous*

**Please Help!!!!!!**

A hot hair balloon is rising vertically 20 ft/sec while the wind is blowing horizontally at 15 ft/sec. Find the speed v of the balloon and the angle x it makes with the horizontal. I know how to solve this problem, but I don't understand why or how you know it's a right angle.

*November 21, 2011 by Desperate!!!!*

**geometry**

the transamerica pyramid building shown in the photograph has four faces shaped like isosceles triangles. The measure of a base angle of one of these triangles is about 85. What is the approximate measure of the vertex angle of the triangle?

*January 17, 2012 by alex*

**math**

A tree on a hillside casts a shadow 200 ft down the hill. If the angle of inclination of the hillside is 23 to the horizontal and the angle of elevation of the sun is 54, find the height of the tree. Please round the answer to the nearest integer.

*November 29, 2012 by amaa*

**Science**

I'm supposed to fill in a table. The angle of incedence in air is given (starting with zero degrees and then at 10, 20, 30, 40, 50 and 60 degrees. Using the sin function on my calculator, I'm supposed to figure out the angle of refraction in an acrylic block. Can anyone help me?

*December 17, 2013 by Iza*

**Algebra 2 math**

In triangle GHI, angle H is a right angle, GH = 40, and cos G= 40/41. Draw a diagram and 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 - I have no idea how to do this

*April 8, 2015 by Daniel*

**Math(Please Help!!!)**

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.

*November 4, 2008 by Abbey*

**Math**

If you begin with a right triangle with sides a, b, and c and decrease the right angle so it is an acute angle, how does compare a^2+b^2 compare with c^2 ?

*August 20, 2009 by Anonymous*

**Geometry**

Triangle DEF is an isosceles triangle with DE = FE. If DE = 5 and D = 75 degrees: what is the length of FE, the measure of angle F, and the measure of angle E? E D ∆ F

*June 16, 2011 by Phillip*

**trig**

an angle with the radian measure of 9pi/5. find radian measure of its reference angle. answers: -4/5, 4pi/5, -pi/5, or pi/5

*May 17, 2012 by Kayla*

**algebra**

ABC and DCB are right angles .That A and D respectively.And AC=DB. Prove that angle ABC is equal to angle DCB?

*August 15, 2012 by TUHITUHI*

**physics**

5. A beam of light travels from benzene to water. If the angle of incidence in the benzene is 48, what will be the angle of refraction in the water?

*December 5, 2012 by alessandra*

**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?

*February 21, 2013 by Trent*

**trig**

What is the length of side c to the nearest whole number if side a 105 and angle A 65 degrees and angle B 37 degrees?

*February 22, 2013 by Anonymous*

**GEOMETRY**

ANGLES X AND Y ARE SUPPLEMENTARY ,AND THE MEASURE OF ANGLES X IS 24 DEGREES GREATER THAN THE MEASURE OF ANGLE Y. FIND THE ANGLE MEASURES.

*March 20, 2013 by JOSEPH*

**olgc**

a circle is divided into 18 equal parts. how many degrees is the angle for each part? how many degrees is the angle for the 5 parts?

*January 29, 2014 by isabel*

**math**

.An angle is 10 more than the measure of its complement. Find the number of degrees in each angle.The angles measure _ degrees.

*April 6, 2014 by justin*

**Algbera**

which angle is coterminal with an angle measuring 130 degrees? 230 130 -490 490 none of these

*May 21, 2014 by Kevin*

**physics**

The 45-45-90 triangular prism shown in the figure has an index of refraction of 1.58, and is surrounded by air. A ray of light is incident on the left face at an angle of 51.0. The point of incidence is high enough that the refracted ray hits the opposite sloping side. 1. ...

*August 27, 2010 by rudi*

**physics**

Consider a 626N weight held by two cables. The left hand cable had tension T and makes an angle of theta with the wall. The right hand cable had tension 720N and makes an angle of 27 degrees with the ceiling. What is the tesion T in the left hand cable slanted at an angle of ...

*July 12, 2011 by alexa*

**Math**

The two sides of a isosceles triangle have a fixed lenght of 14 cm. The opposite angle at the base of the triangle increases by 0.3 rad/min. a) what is the growth rate dx/dt of the base of the triangle when the opposite angle mesures 1.6 rad? (Use the law of sin) b) What is ...

*April 19, 2011 by Ralph*

**Math**

The two sides of a isosceles triangle have a fixed lenght of 14 cm. The opposite angle at the base of the triangle increases by 0.3 rad/min. a) what is the growth rate dx/dt of the base of the triangle when the opposite angle mesures 1.6 rad? (Use the law of sin) b) What is ...

*April 19, 2011 by Ralph*

**Math**

The two sides of a isosceles triangle have a fixed lenght of 14 cm. The opposite angle at the base of the triangle increases by 0.3 rad/min. a) what is the growth rate dx/dt of the base of the triangle when the opposite angle mesures 1.6 rad? (Use the law of sin) b) What is ...

*April 20, 2011 by Ralph*

**Math**

The two sides of a isosceles triangle have a fixed lenght of 14 cm. The opposite angle at the base of the triangle increases by 0.3 rad/min. a) what is the growth rate dx/dt of the base of the triangle when the opposite angle mesures 1.6 rad? (Use the law of sin) b) What is ...

*April 20, 2011 by Ralph*

**math**

Hi - I'm finding this question a bit tricky and think I answered it wrong, can someone please verify for me? Many thanks.... In EFG, find the value of f, if e = 7.3 cm, g = 8.7 cm and E = 73. my answer was 4.73 cm but I'm not confident that I correctly found angle <F...

*August 21, 2011 by Dee*

**maths-circles**

a circle having a centre O has a triangle PQS inside it with the base QP is not on centre O. PT and QT are two tangents from an exterior point T (S, O and T are linear points - lie in one line ) it is given that angle ptq = 25 deg . find angle PSQ and OPQ

*March 15, 2013 by anoynomous*

**Health / PE**

1. A person who does not recognize the signs of mental illness may not know he needs help. A. True B. False 2. Which of the following is not a sign of psychotherapy? A. insight B. cognitive C. medications D. group 3. Which is NOT a health professional who treats mental and ...

*November 12, 2015 by Cami *

**math**

how do you find the coordinates of the point (x, y, z) on the plane z = 1 x + 1 y + 2 which is closest to the origin

*March 16, 2009 by alice*

**math**

How many rectangles will fit about a point when tessellating the plane? How do you know?

*August 28, 2009 by Anonymous*

**History**

How many hours does it take by plane from Michigan to get to North Carolina?

*September 28, 2009 by Monica*

**Geometry**

Will a non-regular acute triangle tessellate the plane?

*October 12, 2009 by jj*

**math**

Will a non-regular acute triangle tessellate the plane? How do you know?

*October 14, 2009 by jj*

**geometry**

Name three regular polygons that will tessellate the plane

*October 24, 2009 by jeng*

**geometry**

Name three regular polygons that will tessellate the plane

*October 24, 2009 by jeng*

**math**

How many rectangles will fit about a point when tessellating the plane? How do you know?

*February 19, 2010 by nicole*

**vectors **

Find the distance between the parallel line and plane: l: r=[2,0,1] + t[1,4,1] pi: 2x - y + 2z = 4

*June 6, 2010 by Abigail *

**Physics**

the energy of a ball rolling up an inclined place plane is?

*June 7, 2010 by Mary*

**science**

if you are flying a plane at 600 km/h and you jump striaght up, where do you land and why?

*October 9, 2010 by sarah*

**Calculus**

Find the equation of the plane through (1,2,-2) that contains the line x = 2t, y = 3 - t, z = 1 +3t

*February 17, 2011 by Phil*

**Calc**

How do you know what shape the graph in the xy-plane represented by x=3sin(t) and y=2cos(t) is?

*May 3, 2011 by Erica*

**Physics**

why the ray reflected by the prism is brighter than that by the plane mirror?

*November 15, 2011 by demolitrate*

**physics**

the image you see in a plane mirror appears to be at what distance?

*November 24, 2011 by priscilla*

**Calculus grade 12**

Determine an equation for the plane that contains the points A(6, 2, 3), B(5, 1, -3), and C(5, 7, -2).

*May 3, 2012 by J*

**Calculus**

Does the line [x,y,z] = [-2,6,5] + t[3,2,-1] lie in the plane 3x - 4y + z + 25 = 0 ? Please show work.

*May 5, 2012 by J*

**Calculus**

5. Determine an equation for the plane that is exactly between the points A(-1, 2, 4) and B(3, 1, -4).

*May 25, 2012 by j*

**Calculus**

5. Determine an equation for the plane that is exactly between the points A(-1, 2, 4) and B(3, 1, -4).

*May 26, 2012 by j*

**Calculus**

5. Determine an equation for the plane that is exactly between the points A(-1, 2, 4) and B(3, 1, -4).

*May 26, 2012 by j*

**Calculus**

determine the coordinates of two points on the plane with equation 5x + 4y - 3z = 6

*June 18, 2012 by Henry*

**physics**

moment of inertia of a ring perpendicular to tangent and its plane

*November 1, 2012 by sara*

**math**

Find the coordinates of the point of intersection of the plane 2x+y-3z+6=0 on the y-axis

*March 5, 2013 by tapz*

**multivariable calculus**

Find the equation of the plane containing the points (1; 0; 0), (0; 2; 0) and (2; 1; 3).

*March 26, 2013 by cheuk*

**Chemistry**

Calculate the density of atoms on plane (001) in Lithium

*April 26, 2013 by anon*

**chemistry**

calculate surface energy of 100 plane of niobium.

*May 31, 2013 by himani.*

**physics**

Can a plane mirror ever form real image?

*July 15, 2013 by Ritesh chaudhari*

**Calculus**

Where does the line through (1,0,1) and (3,−2,5)intersect the plane x+y+z=10? (x, y, z) =________?

*January 31, 2014 by balal*

**Calculus**

Find the distance from the point to the given plane. (1,−5,9), 3x+2y+6z=5

*January 31, 2014 by miolo*

**physics**

a plane travelling at 200.0m/s braked to a stop in 6.2s. what was its acceleration?

*August 10, 2015 by Anonymous*

**Math**

How do you graph mixed fraction from a table on a coordinate plane ?? Thanks

*August 18, 2015 by Mariam*

**MATH ANSWER HELP**

Graphing in the Coordinate Plane Unit Test

*May 5, 2016 by john hobert*

**science **

A displacement vector r in the xy plane is 15m long and directed ...

*September 30, 2016 by Zeshan *

**managerial economics**

In 1991 the Air Force awarded a $93 billion (or more) contract to a group led by Lockheed, Boeing, and General Dynamics to build the new fighter plane for the 21st century, the YF-22 Lightning 2. A group headed by Northrop and McDonnell Douglas, which had spent more than $1 ...

*August 8, 2010 by tina*

**math trigonometry**

1. Two straight roads intersect to form an angle of 75". Find the shortest distance from one road to a gas station on the other road 10o0 m from the junction. 2. Two buildings with flat roofs are 60 m apart. From the roof of the shorter building, 40 m in height, the angle of ...

*January 4, 2013 by mikee*

**math**

Two sides of a triangle have lengths 8 m and 24 m. The angle between them is increasing at a rate of 0.05 rad/s. Find the rate at which the area of the triangle is changing when the angle between the sides of fixed length is 135. Round your answer to two decimal places. So it...

*October 20, 2013 by christina*

**chemistry**

When 18 g of ethylene glycol C2H6O2 is dissolved in 150 g of pure water, the freezing point of the solution is ___ (degrees)C. ( The freezing point depression constant for water is 1.86(dgrees)C kg/mol. I know the formulas I just need to see it done step by step please.

*August 4, 2008 by Jared*

**Math**

1. You have 3500 in savings for 9 months at a rate of 4.5%. How much will you have at the end of that time? Ans. my book says: 3,618.13 I come up with: 118,125 2. Scale reads 1 inch = 24 inches for a house window. If window measures 1 3/4 inches, what is the actual length? Ans...

*November 28, 2012 by Edna*

**Physics**

A weight of 690 N is held by two cables. The left-hand cable had tension T2 and makes an angle of 41◦ with the ceiling. The right-hand cable had tension T1 and makes an angle of 42◦ with the ceiling. What is the tension in the cable labeled T1 slanted at an angle ...

*December 8, 2014 by Jack*

**Physics **

The position ModifyingAbove r With right-arrow of a particle moving in an xy plane is given by ModifyingAbove r With right-arrow equals left-parenthesis 3 t cubed minus 2 t right-parenthesis ModifyingAbove i With caret plus left-parenthesis 5 minus 2 t Superscript 4 Baseline ...

*September 25, 2015 by barich*

**math**

Find an angle between 0 degree and 360 degree that is coterminal with given angle. a. 361 degree b. -100 degree c. 1270 degree

*October 26, 2009 by David*

**Geometry**

I have a circle with a Tangent line, DE, running along it and connecting with another line, FC, which runs through the center of the circle to the other side.I have connected the center of the circle with point E on the edge of the circle with a radius. I have labeled the ...

*June 3, 2009 by Aaron*

**Geometry**

I have a circle with a Tangent line, DE, running along it and connecting with another line, FC, which runs through the center of the circle to the other side.I have connected the center of the circle with point E on the edge of the circle with a radius. I have labeled the ...

*June 3, 2009 by Aaron*

**phsyics**

Light enters a plate of borosilicate crown glass at an angle of 40.2 degrees with respect to the nor- mal to the air-glass surface. If the index of refraction of the glass is 1.52, find the angle made by the refracted beam with the normal. Answer in units of .

*February 27, 2011 by leslie*

**Chemistry**

What is the freezing point (C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water? The molal freezing point depression constant for water is 1.86C/m. (Note that when Ca(NO3)2 dissolves in water Ca2+ and NO32- ions are produced).

*May 25, 2012 by Henry*

**Geography**

In an effort to help Japan recover from the devastating effects of the 1929 depression, Japanese military leaders in the 1930s...? A. adopted a policy of imperialist expansion. B. formed an alliance with the Soviet Union. C. negotiated more trade treaties with the Soviet Union...

*April 12, 2010 by Greiye*

**History/9th grade**

I am trying to understand and I hope you can help me. I just want some more explaintion about the great depression. Why do people call it a leveler? I heard some kids over at the table next to me at lunch today. Like I said I just want to know. I am studing about presidents ...

*May 4, 2010 by Nanci*

**physics**

Suppose a stone is thrown at an angle of 30 degrees below the horizontal, if it strikes the ground 57m away, find (a)the time of flight, (b)the initial speed, and (c) the speed and the angle of the velocity vector with respect to the horizontal impact.

*October 16, 2011 by Gail*

**trig**

A tree on a hillside casts a shadow c ft down the hill. If the angle of inclination of the hillside is b to the horizontal and the angle of elevation of the sun is a, find the height of the tree. Assume a = 48, b = 18 c = 235 ft. (Round your answer to the nearest whole ...

*November 29, 2012 by Anonymous*

**Physics**

VERY URGENT- A kicked ball takes off at 25m/s at an angle with the ground. If the goal is 50m away and the horizontal bar is 3.44m above the ground, what must be the elevation angle for the kicker to score a goal?

*February 26, 2014 by Samuel*

**Geometry**

The measure of an angle SUT is twice m<RUS. if m<RUS=(18x-8)degrees and m<TUS=(4x + 16) degrees. Find m<RUT. This is an acute angle. Please help. I have tried figuring this problem out a million and one ways. Thanks

*February 10, 2015 by Katie W*

**Physics**

A golf ball hit at a speed of 77 m/s will carry (achieve its maximum flight distance of) 256 m when driven at a launch angle of 16 deg. What would be its horizontal range in a vacuum if launched at the same speed and at the same angle ?

*February 18, 2016 by Edwin*

**physical science**

Light is incident on aplane mirror at an angle of 46 degrees relative to its surface. What is the angle of reflection? Your exact answer here: http://en.wikipedia.org/wiki/Reflection_%28physics%29 The angle of incidence equals the angle of reflection but these are relative to ...

*November 27, 2006 by Zuri*

**calculus**

a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal legs. the area of a trapezoid is A=(1/2)*h*(b1+b2) where b1 and b2 are the two parallel bases and h is the altitude. your problem: a water viaduct has a ...

*November 17, 2011 by robert*

**physics**

Why is white light separated into a spectrum of colors when it is passed through a diffraction grating? The diffraction angle (theta) is given by n x (lambda) = d sine(theta) where lambda = wavelength theta = diffraction angle d = grating spacing n = order (1,2,3 etc.) so each...

*April 27, 2007 by anonymous*

**physics**

i have to do an experiment to "determine the relationship between the angle of the rampand speed of an object sliding down it" i was told i had to have a few variables. -controlled(keep the same) -independent(change 1 thing) -dependent(measure 1 thing) so if the angle of my ...

*February 3, 2010 by bjc*

**Geometry**

pa and pb are tangents to circle from point p. chord ab is drawn. find the number of degrees contained in angle pab if angle apb contains a)80 degees b 40 degrees c) 60 degrees d) 90 degrees e) 120 degrees can some1 pllllz explain this 2 me!

*March 2, 2011 by Summer*

**Physics**

A wheel's uniform angular acceleration is constant. Initially its angular velocity is zero. During the first 1.0 s time interval, it rotates through an angle of 90.0. (a) Through what angle does it rotate during the next 1.0 s time interval? (b) Through what angle during the ...

*March 25, 2012 by Adam*

**geometry**

Assume triangle JKL is in the first quadrant, with the measure of angle K = 90. Suppose triangle JKL is a 30-60-90 triangle and segment JK is the side opposite the 60 angle. What are the approximate coordinates of point L? j(2,7) k(2,2) a(4.9,2) b(4.5,2) c(7.1,2) d(8.7,2)

*February 22, 2012 by steve*

**geometry**

I am really stuck on a couple of these. 2 column proof Given: FH is congruent to GE and angle HFG is congruent to angle EGF Prove: triangle GEH is congruent with triangle FHE.

*December 29, 2012 by linda*