# 1. What is one thing a strong introduction does NOT do? (1 point)capture the reader’s interest present evidence to explain the topic provide background information state the main idea of the report 2. Which is the correct MLA citation for

40,793 questions, page 216
1. ## geometry (maths)

ABCD is a rectangle, in which BC=2AB. A point E lies on ray CD, such that CE=2BC. Prove that BE perpendicular AC.

asked by math... on June 6, 2011
2. ## PHYSICS!!!

By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

asked by Molly on December 1, 2010
3. ## calculus

Prove (by using a point and a normal vector) that the plane whose intercepts with the coordinate axes are x=1, y=1, and z=1 is given by the equation x+y+z=1

asked by Alex on October 4, 2012
4. ## Chemistry

As the number of carbons increases, the boiling point of alkanes decrease True or False

asked by Sarah on December 6, 2014
5. ## physics

If two stones projected from the same point with the same speed but at angles pi/3 and pi/6 respectively have their ranges R₁ and R₂ then a)R1=2R2 B)R1=R2 C)R1=5R2 D)R1=25R2

asked by fatima on June 15, 2014
6. ## Alebra 2

At what point does the terminal side of the angle (5\pi )/(6) in standard position intersect the unit circle?

asked by Ray on February 14, 2017

can you give me some good examples of functional design for a health care power point I am doing?

asked by april on January 29, 2009
8. ## Health

At what point during the course of treatment of a new patient should notice of use and disclosure of health information, required under HIPAA, be given and why?

asked by M on November 11, 2008
9. ## algebra 1

if you go from one point to the other do you subract the a and b or do you do all points in between to find the elevation? I'm not sure what this question refers to. Are you trying to calculate slopes?

asked by jamie on September 5, 2006
10. ## chem

Rank the following compounds in order of decreasing boiling point: KCI CO2 CH2O

asked by Natash on December 7, 2008
11. ## Physics

A ball falling from rest is located 45 m below its starting point 3.0 s later. Assuming that its acceleration is uniform, what is its value?

asked by Lucy on February 11, 2008
12. ## calculus

Given that x3-axy+3ay2=3a3 Find the equations for the tangent and normal lines at point (a,a)

asked by mei peng on October 6, 2010
13. ## mathURGENT!!!!!!

what is the greatest value of m such that 25!/5^m is an integer? hint: the exclamation point means "factorial". 3!=3*2*1=6 4!=4*3*2*1=24 etc. please answer and explain how you got it!!!!please???

asked by don on March 8, 2013
14. ## Algebra 1

Name the constant of variation for each question. Then determine the slope of the line that passes through each pair of point. y=2x

asked by Quiona on December 9, 2007
15. ## maths

BM and CN are perpendicular to a line passing through the vertex A of a triangle ABC. IF L is the mid point of BC. PROVE THAT,LM=LN

asked by Aman on December 11, 2017
16. ## Science

How many grams of ammonium nitrate nedd to be added to 500g of water so that the freezing point becomes -8.3 °C?

asked by Christ on February 14, 2017
17. ## physics

What magnitude point charge creates a 13000 N/C electric field at a distance of 0.220 m?

asked by taryn on February 3, 2013
18. ## Math- AP Calc

If 3x+xy+4y=8, what is the value of d^2y/dx^2 at the point (1,1)? My work: 3+(x)(dy/dx)+(y)+4(dy/dx)=0 dy/dx(x+4)=-3-y dy/dx=-3-y/x+4 2nd Dervative: (x+4)(0-dy/dx)-(-3-y)/(x+4)^2 (x+4)(-(-y-3/x+4))-(-3-y)/(x+4)^2 (x+4)(y+3)/(-x+4)+(y+3)/(x+4)^2 *Mult.

asked by David on October 6, 2014
19. ## true

find the resultant of two vectors of 3units and 4units acting at a point,o at an angle of 45 degrees with each other

asked by true on November 14, 2016
20. ## Physics

A stone is thrown straight up. To reach a height of 6.49 m above its release point, what must its initial speed be in m/s?

asked by Ted on October 4, 2012
21. ## CALC HELP!

Find an equation of the tangent line to the graph of y= x+ (4/x) at the point (4,5). I can't figure out the answer to this. It's supposed to be y=3/4x +2 but I can't get that.

asked by em on March 9, 2016
22. ## chemistry

What is the effect of an insoluble impurity, such as sodium sulfate, on the observed melting point of a compound?

asked by kelly on June 12, 2008
23. ## physics

A stone is thrown straight up. To reach a height of 6.74 m above its release point, what must its initial speed be in m/s

asked by Conner on October 4, 2012
24. ## Geometry

Given: AB ∥ CD , BC ∥ AD , BD ∩ AC = O, M∈BC ; N∈AD Prove: BM = ND BD and AC are diagonals MN goes through the center which is also where BD and AC bisect and point O Can U Guys Put the Answer it would be a BIG HELP, Thanks (:

asked by Serina on March 19, 2017
25. ## Calculus

Can someone show how to solve this problem Find the equation of the tangent line to the curve given by, x=3e^t y=5e^-t at the point where t=0 Thanks!

asked by Henry on August 5, 2015
26. ## PYSCIS!!!!

By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

asked by Molly on December 1, 2010
27. ## maths

a boy walks 1260m on a bearing of120 degree, how far south is he from his starting point?

28. ## science

How does grazing, septic systems and recreational boating contribute to non-point source pollution ?

asked by anonymous on March 19, 2012
29. ## Physics

A 2.0-kg rock falls from a height of 25 m to a point 20 m above the ground. How much potential energy does it lose? GIVEN: mg = 2.0 kg h/d = 5 m PE = mgh PE = (2)(5) PE = 10 J

asked by Priscilla on January 4, 2010
30. ## physics

three forces of 10N,30N and 50N act at a point at 120° to each other.Find their resultant.

asked by Anonymous on December 28, 2015
31. ## Math

Find an equationof the line having the given slope and containing the given point. Express your answer in the form y=B or y=mx+b M=0,(0,5) The equation is y=

asked by Pam on February 10, 2014
32. ## Medical

At what point during the course of treatment of a new patient should notice of use and disclosure of health information, required under HIPAA, be given and why?

asked by Daliz on April 1, 2010
33. ## Information Technology

I'm suppose to do Computer System Scenarios. There are 4 of them to do each asking to come up with IT solutions and I have no idea where to begin can someone point me in the right direction? Thanks

asked by Jen on December 9, 2007
34. ## math

If the solution to the linear programming problem exists, then it has to be at a corner point.it is true or false?

asked by sateko on April 18, 2011
35. ## Physics

A downward force of 5.1 N is exerted on a -7.3 mcirco C charge. What is the magnitude of the electric field at this point?

asked by Heidi on February 9, 2013
36. ## Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y= 3[(x-1)^(2/3)] - [(x-1)^2]

asked by Jands on January 10, 2011
37. ## Calculus

For the question "Determine the equation of the tangent to the curve y = xtanx at the point with x-coordinate π." how is the answer -πx + y + π2 = 0?

asked by Sara on March 9, 2015
38. ## Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y = (x^3)/(x^2 - 4)

asked by Jands on January 10, 2011
39. ## Math

I have the following question on a warm-up : What is the equation of the line that passes through the point {-2, 2} and has a slope of 5? Can someone help me to figure out the answer.

asked by Pam on December 14, 2018
40. ## Math

Dwayne passes the 0 point running 4 meters per second to the right.Where is he 5 seconds later?Write a number sentence.

asked by kristina on January 10, 2010
41. ## Math

Point A(6,-2) is reflected over the x-axis. Write the coordinates of A'. The anwser is (6,2) but I don't understand it can someone explain?

asked by Memed on October 26, 2018
42. ## Chemistry

Consider the titration: .30 M HCl versus .30 M methlamine (CH3NH2). What is the concentration of CH3NH3+ at the equivalence point?

asked by Amy on November 29, 2010
43. ## calculus

Does any tangent to the curve y=ãx cross the x-axis at x= -1? If so, find an equation for the line and the point of tangency. If not, why not?

asked by natalia on March 1, 2010
44. ## Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y = (x^2 + 1)/(x^2 - 9)

asked by Jands on January 10, 2011
45. ## Calculus

What is the point of inflection of the function f(x)=x^3-8x^2+5x+50? Is the local extrema at f(1/3)=50.8 max and f(5)=0 min? For the second derivative I got f(x)=6x-16 and then got x=16/6 when set to zero.

asked by Bill on October 24, 2012
46. ## Science

(a) What magnitude point charge creates a 20000 N/C electric field at a distance of 0.210 m?

asked by Akos on August 27, 2013

ABC is a triangle with ∠ACB=45∘. D is a point on AC such that AD=2DC. If ∠ADB=60∘, what is the measure (in degrees) of ∠CAB?

asked by glo on May 7, 2013
48. ## Calculus (RATE OF CHANGE)

Estimate the instantaneous rate of change at the point indicated. (Round your answer to four decimal places.) y(x) = 1/ x + 2; x = 2

asked by Jeff Henderson on February 21, 2017
49. ## physics

If you throw a ball straight upward at a speed of 11 m/s, How long will it take to return to its starting point?

asked by Alyssa on October 6, 2010
50. ## physics

If you throw a ball straight upward at a speed of 11 m/s, How long will it take to return to its starting point?

asked by Alyssa on October 6, 2010
51. ## computers

how can i make a website on telecommunication and its effects on society with the help of share point designer 2007

asked by rabiyah on April 1, 2011
52. ## health

need help with power point for hcr/210 final project records management presentation

asked by dawn on May 17, 2013
53. ## Math 20-1

The most convenient test point to use to determine if the points in a region defined by y

asked by Alex on February 1, 2015
54. ## Pre-Calculus

I need to write a polynomial of the smallest degree with roots 5 and 6 and the answer can't have parentheses. Can someone point me in the right direction. I have several of these to do.

asked by Sandra on September 1, 2011
55. ## Calculus

Find the equation of the line through the point (3, 5) that cuts off the least area from the first quadrant? y-A=B(x-C) i know its slope is -3/5 which is B. But what are the values of A and C?

asked by Asfand on November 13, 2016
56. ## Math

Write the equation of the line in slope intercept form that is parallel to y=-2+11, and passes through the point (4,2).

asked by Kat on January 24, 2010
57. ## US History Colony Develpoment

Did the different circumstances of Maryland and Virgina's founding affect the course of their respect development? How? Please point me in the right direction.

asked by Mia on May 24, 2009
58. ## math

A straight line passes through the point (-1,2) and its distance from the origin is 1 unit. Find the equation

asked by saurav on March 15, 2015
59. ## math

Find the equation of a hyperbola which is generated by a point that moves so that the difference of its distance from the points (-4,1) and (2,1) is 4.

asked by coni on December 17, 2008
60. ## chemistry

lowest+freezing+point+of+Kbr+AlNO33+CH3COONa+NaNO2+MgCl2+of+same+molality

asked by deepak on March 29, 2013
61. ## Calculus 1

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. x^2+y^2=(2x^2+4y^2−x)^2 (0, 0.25) (cardioid)

asked by TayB on March 9, 2015
62. ## calculus

use implicit differentiation to find an equation of the tangent line to the curve at the given point. 9x^2+xy+9y^2=19, (1,1) (ellipse)

asked by lori on February 8, 2013
63. ## calculus

Find the rate of change of the distance between the origin and a moving point on the graph y = x^2 + 8 if dx/dt = 8 centimeters per second.

asked by ale on October 6, 2010
64. ## physics

If you throw a ball straight upward at a speed of 11 m/s, How long will it take to return to its starting point?

asked by Alyssa on October 6, 2010
65. ## maths

'A ship sales for 60km on bearing 040 degrees.How far east of it is the starting point?'

asked by rajini on July 29, 2015
66. ## science

True or false, and explain answer. Boiling point is the temperature at which a solid melts

asked by helpme on March 12, 2019
67. ## math 115

I need help please, Find an equation of the line having the given slope containing the give point m=5/6(5,-8) 5/6+ 40/6 is this correct and if not can you explain to me what I am doing wrong please

asked by Sydney on September 20, 2010

Why is it possible to use melting point to distinguish the different stereochemistry of the products? (Hint: what is the relationship of the different stereoisomers of the product?)

asked by JEN on August 15, 2012
69. ## algebra 2

write the standard form of the equation of the circle that passes through the given point (8,0) and whose center is the origin

asked by Rache on July 10, 2011
70. ## Chemistry

Determine the freezing point of an aqueous solution containing 10.50 g of magnesium bromide in 200.0 g of water.

asked by Zac on August 31, 2015
71. ## chem

(R)-(+)- limonene has a boiling point of 176 C. What made it possible to steam distill it at 100C? - is it because you could have different weights of each one?

asked by Jason on November 24, 2008
72. ## heeeeeelp math

is a point outside of circle Γ. The tangent from P to Γ touches at A. A line from P intersects Γ at B and C such that ∠ACP=120 ∘. If AC=16 and AP=19, then the radius of Γ

asked by clavin on June 7, 2013
73. ## trigonometry

how do i determine the point of intersection of a circle with a radius of 14 and the line coming in at a 35 degree angle

asked by james on June 6, 2013

Point value of a hexagon is six. trapezoid is 3. triangle is 1. Rhombus is 2. my homework says, shape, number and total. what do I do? thanks.

asked by Julie on August 25, 2010
75. ## Math

The quadratic function f is negative only on the open interval (−2, 1/4 ) and its graph passes through the point (−1, −5). Find a,b, and c.

asked by Juan Fernandez on January 20, 2017
76. ## Chemisrty

What volume of 0.740 M , HCl in milliliters, is required to titrate 2.05 g of Na2CO3 to the equivalence point?

asked by Julian on October 4, 2015
77. ## physics

Using gauss's law,calculate the electricfield at a distance r=20cm from a point charge q=4microcoulomb.

asked by Ayodele on April 11, 2010
78. ## calculus

find the rate of change of the distance between the origin and a moving point on the graph of y=x^2+2 if ds/dt=5 centimeters per second.

asked by norma on September 24, 2010
79. ## calculus

find the rate of change of the distance between the origin and a moving point on the graph of y=x^2+2 if ds/dt=5 centimeters per second.

asked by norma on September 24, 2010
80. ## physics

Three point charges are arranged as shown. − + + −6.1 nC and 1.6 nC .4m apart 1.6 nC and 3 nC .088m apart What is the electric ﬁeld strength at 1.8 m to the right of the mid

asked by amanda and leah on April 8, 2012
81. ## Physics

If a current is flowing with a value of 5.9 A, how much electron charge passes any single point in 25 seconds? A) 1.9 x 1020 e

asked by John on January 21, 2014
82. ## Physics: Waves in Media

By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

asked by Amanda on December 7, 2010
83. ## equation on tangent of a curve need help

find the equation of a tangent of a curve at point(1,3) x^2.y^3+y^2.x^4+4x^2-14=0,i tried differentiate it n also applying this formula y=mx+b.bt i gt confuse

asked by edward on August 27, 2015
84. ## Science... plz help~!

If a 40 kg person is accelerating at 10 m/s^2, then the magnitude of the force acting on him or her is 400 N. (1 point) True False

asked by Gabby on March 12, 2014
85. ## calculus

If x = 18cos^3θ and y = 18sin^3θ, ﬁnd the total length of the curve swept out by the point (x,y) as θ ranges from 0 to 2π.

asked by Sam on May 7, 2017
86. ## algebra 2

how do you do this? find equations in standard form of the lines through point P that are (a) parallel to, and (b) perpendicular to line L: 1) P(0,-4); L: 2y=x 2)P(2,0);L:x+2y=3 3)P(-4,1); L: y+2=0

asked by christina on October 2, 2008
87. ## math HELP!!!!!!!!!

1. Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point)(–2, 4) and (6, 6) (2, 4) and (6, 6) (–2, 4) and (6, –6) (2, –1) and (–3, 3)

asked by ? on November 7, 2012
88. ## Physics

a boat sails 150km N60°E, then 100km West. What is it's displacement from its starting point?

asked by Victor on January 25, 2017
89. ## appliance

What is the name of the SCR or TRIAC triggering system that triggers the output device at the same point on each AC cycle?

asked by vit on August 14, 2012
90. ## Art

This is where an interior designer does most of her work. (1 point) in a factory at the client's home in an office in a studio

asked by RainbowDragon on January 14, 2013
91. ## chemistry

Why should the volume of standard base (or acid) needed to reach the equilvalence point in a titration be more than 10.0 mL?

asked by redgy on March 20, 2011
92. ## chemistry

Why is it possible to use melting point to distinguish the different stereochemistry of the products? (Hint: what is the relationship of the different stereoisomers of the product?)

asked by Jen on August 15, 2012
93. ## math

a rope is 120 ft long and the water is 20 ft deep. how far is the anchor from a point directly below the boat?

asked by lee on January 26, 2011
94. ## Math - Geometry

Suppose point P and lines l and m all lie on the same plane. If the distance from P to l and from P to m is 3, which of the following could be true? A)l is parallel to m B)l is perpendicular to m C)l=m D)any of these

asked by Thamara on December 23, 2009
95. ## chemistry

What volume of 0.115M NaOH is required to reach the equivalence point in the titration of 25.00 mL of 0.200M of HF? Ka(HF)=7.4 x 10^-4

asked by csb on December 5, 2010
96. ## Chemistry

What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6) in 100 g of H2O? Kf for water is 1.86oC/m

asked by Sam on July 17, 2012
97. ## scince

Which of the following is not an example of a physical property of a substance? density combustion solubility freezing point thx

asked by hi on November 14, 2017
98. ## chemistry

what is the freezing point depression of water, benzene, acetic acid, ethanol and clyclohexane?

asked by jarlyn jane ejares on January 27, 2014
99. ## com 150 week 6

body parsgraphs and topic outline and working references list check point

asked by tasha on October 8, 2008
100. ## maths

The perpendicular bisector of the line joining the points D(1,2) and E(5,4) meets the y-axis at the point (0,k).calculate k

asked by vmu on November 27, 2011