Thursday

September 18, 2014

September 18, 2014

Number of results: 12,871

**Locus- Calculus**

Find the equation of the locus of the point representing z if |z-5-12i| + |z-5+21i|=13
*April 25, 2014 by Daksh*

**Biology / DNA / science**

Hi, Can anyone confirm my answer here.. I need to determine familial relationship Body 1 Body 2 Body3 Locus 1 14,19 16,18 14,18 Locus 2 15,21 18,18 17,21 Locus 3 11,11 12,13 11,12 Locus 4 18,19 18,24 18,23 Locus 5 13,14 14,15 12,14 Locus 6 29,29.2 29,31.2 29,31.2 Locus 7 13,17...
*December 3, 2010 by Rooster*

**math**

what is the locus of the midpoints of the line segments joining a given external point to all points of a plane? (Locus is set in space aka 3d)
*May 13, 2012 by My Name Is Bob*

**Social Psychology**

Could some one please help me with this assignment. I am really confused about this. Here is what I have to do: Write 200 to 300 words applying critical thinking to determine whether an internal or external locus of control is more effective in various life situations. The ...
*February 13, 2011 by Mandy*

**Analytic Geometry**

Find the equation of a locus of a point which moves so that the sum of its distance from (2,0)and (-2,0) is 8. it is about equation of a locus.. please help!!
*January 14, 2011 by Anal-G*

**interpesonal relationship**

Inventory score is 18 out of 40, what am I? An internal locus of control or external locus of control?
*October 26, 2008 by danny*

**Geo (locus)**

I don't fully get this stuff but some of these I guessed on and some I think I;m close so will someone check/ help me please? * is the answer I put 1. Point A is 0.5 cm from j. k and k are parallel and 1 cm apart. Find the locus of points that are 0.75 cm from A and ...
*June 12, 2010 by matt*

**Biology**

Typically we talk about blood types as B-positive or AB-negative and so forth. The positive and negative part of the blood type is determined by a completely separate gene (the Rh locus). The ABO locus and the Rh locus are inherited independently, like pea shape and pea color...
*September 16, 2011 by kay*

**human Genetics**

Typically we talk about blood types as B-positive or AB-negative and so forth. The positive and negative part of the blood type is determined by a completely separate gene (the Rh locus). The ABO locus and the Rh locus are inherited independently, like pea shape and pea color...
*September 15, 2011 by kay*

**maths --plse help me..**

without using set square or protacter construct 1. triangle A BC WITH AB = 5.5 CM , BC = 3.2 CM CA = 4.8 CM 2. DRAW LOCUS OF A POINT WHICH MOVES SO THAT IT IS ALWAYS A DISTANCE OF 2.5 CM FROM B. 3. DRAW LOCUS OF POINT SO THAT IT IS EQUIDISTANT FROM BC & CA . 4. MARK POINT OF ...
*December 28, 2012 by Anonymous*

**math**

1) The Vietnam Memorial in Washington, DC is an angular wall. If you are standing at the vertex of the angled monument and you wish to back up always staying equidistant from the side walls, describe the path you would take. 2) Describe fully the locus of points 6 units from ...
*April 25, 2009 by anthony*

**Maths**

Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies on this locus. I know it is an arc subtended from the points (0,2) and (1,0) but I do not know how to find the centre of the circle which I am ...
*February 4, 2007 by Jake*

**Maths**

Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies on this locus. I know it is an arc subtended from the points (0,2) and (1,0) but I do not know how to find the centre of the circle which I am ...
*February 4, 2007 by Jake*

**Maths**

Given that arg((z-1)/(z-2i)) = pi/4 describe the locus of P and sketch this on an argand diagram. Show that the point (1,3) lies on this locus. I know it is an arc subtended from the points (0,2) and (1,0) but I do not know how to find the centre of the circle which I am ...
*February 5, 2007 by Jake*

**Maths**

Find the equation of the locus of the point P(x,y) which moves so that it's distance from the point (0,3) is equal to its distance from the line y=-3 Show that the point (-6,3) lies on the locus Please help me with thisand also show working out
*August 7, 2012 by Jiskhaa*

**calculus**

Find the equation of the following. The locus of all points in a plane such that the sum of the distances from points (-2,-1) and (-10,-1) is equal to 6.
*April 8, 2010 by Jamie*

**Spheres, Locus (in space aka 3d)**

1) A "small circle" is a circle on a sphere that is NOT a "great circle". What is the locus of the centers of ALL small circles of a sphere having radius 1/2 that of the sphere? I think the answer is a plane? But I'm not sure. Please help me!
*May 14, 2012 by Billy*

**math**

I need help with parametric equations, locus problems, tell me how to solve all questions if you can. Need help with one below: Tangents are drawn to a parabola x^2=4y from an external point A(x1,y1) touching the parabola at P and Q (a) Prove that the mid point, M, is the ...
*November 1, 2010 by chris*

**math**

1) A gardener wants to plant flowers 10 feet form the base of a flag pole. When he has completed the task, describe in detail what geometric shape the planted flowers will form? 2) Describe the locus of points 5 units from the line whose equation is y=3 on a coordinate graph. ...
*April 23, 2009 by joseph*

**maths**

For the transformation w=z^2, find the locus of w when z lies on the imaginary axis. I thought the locus would be a line along the real axis as I thought w= r^2 or -r^2 but the book says it has argument pi which would mean only on the negative real axis ie w= -r^2 why both are...
*February 23, 2007 by Jake*

**College Psych**

Which of the following is NOT a cognitive factor involved in personality? a) A high degree of self-efficacy b) Surface Traits c) An external locus of control d) A low degree of self-efficacy e) An internal locus of control Please help I have no idea. If I had to guess I would ...
*December 10, 2008 by Michele*

**Statistics and Research Methods**

Trying to understand these two correlations using the Pearson r. How do i interrupt the relationships 1)Just World and Locus of control r=-.224 p-value=.210 (Sig. 2-tailed) 2)Just world and Authoritarianism r=.329 p-value=.062 3)Locus of Control and Authoritarianism r=-.203 p...
*April 11, 2013 by DrewS*

**Calculus**

Conic Sections- A point moves so that its distance from the origin is twice its distance from the point (3,0). Show that the locus is a circle, and find its centre and radius.
*June 28, 2008 by Kelly*

**Maths**

For the transformation w=z^2, find the locus of w when z lies on the imaginary axis. I thought the locus would be a line along the real axis as I thought w= r^2 or -r^2 but the book says it has argument pi which would mean only on the negative real axis ie w= -r^2 why both are...
*February 24, 2007 by Jake*

**Question**

Which would be an example of internal locus of control? Jessie was involved in a car accident. Using his strong internal locus of control,he believes that ______ caused the accident. A. A BRAKE FAILURE B. A POORLY MARKED STREET SIGN C. HIS SISTER PLAYING THE RADIO TOO LOUD D. ...
*November 4, 2006 by Carrie*

**Psy230**

1) How does a person’s level of autonomy affect their sense of freedom? The greater a person’s level of autonomy will be a greater sense of freedom. With autonomy the sense of freedom becomes greater because you increase you sense of responsibility and obligations to their ...
*March 24, 2009 by Malkia*

**Psy230**

1) How does a person’s level of autonomy affect their sense of freedom? The greater a person’s level of autonomy will be a greater sense of freedom. With autonomy the sense of freedom becomes greater because you increase you sense of responsibility and obligations to their ...
*March 24, 2009 by Malkia*

**locus**

Write an equation of the locus of points a. equidistant from the x-axis and the y-axis and whose coordinates have the same sign b.equidistant from the x-axis and the y-axis and whose coordinates have the same sign Can anyone please give me some ideas to do it? THANKS A LOT!
*December 14, 2008 by Tracy*

**Biology**

Orange color in non-pedigreed cats is controlled by the O locus. The non-orange phenotype, if not diluted, appears as black coat color. Perform the following reciprocal crosses: Orange blotched female X black blotched male Black blotched female X orange blotched male What ...
*February 10, 2009 by claire*

**biology**

A dominant gene V in humans causes certain areas of the skin to become depigmented, a condition called "vitiligo." Albinism is the complete lack of pigment production and is produced by the recessive genotype aa. The albino locus is epistatic to the vitiligo locus. Another ...
*December 12, 2011 by Alex*

**Genetics**

I'm having trouble with this problem, because I keep getting the same answer for two of the questions, which doesn't help me with part d. If someone could give me some hints as to how to solve this correctly. Also do how does the anothocyanin factor in? Do rr plants die? In ...
*November 27, 2007 by chamel413*

**math**

in the backyard there are two trees located at grid points A(-2,3) and B(4,-6) a) The family dog is walking through the backyard so that it is at all times twice as far from A as it is from B. Find the equation of the locus of the dog. Draw a graph that shows the two trees, ...
*April 6, 2008 by alley*

**PURE MATHEMATICS**

1. The complex number 'a' is such that a^2=5-12i use an algebraic method to find the two possible values of 'a' 8. The complex number z is given by z=cosTheta + isinTheta where -1/2pi< or equal to Theta less than or equal to 1/2pi. a. show that |1+z|=2cos(1/2Theta) and arg(...
*September 13, 2013 by Kerry-Ann*

**geometry**

what is the equation of the locus points equidistant from the lines y=1 and x=2
*December 11, 2011 by khalia*

**Biology**

Iwas woudnering if you could help me with this problem. The answer key says that the answer is D and I have no idea why. The chart, included in the link, reads off a value of about .5 for the G locus for the year 1980 Finding the percent heterozygous should be as sipmle as 2(....
*July 4, 2010 by Kate*

**Please Help:D**

Given a square, what is the locus of points equidistant from the sides?
*May 12, 2012 by My Name Is Bob*

**maths**

if A=(3,5) and B=(4,1).find the equation of locus of point p which are equidistant from points A and B
*February 16, 2013 by reshma*

**maths pleaaaase**

The point X and Y are 8cm apart Draw a scale drawing of the diagram and draw the locus of points that are equidistant from both points X and Y what do they mean by equidistant Equidistant means the same distance. I'm not a teacher, but I would imagine that all points ...
*May 2, 2007 by Mrs. Cunniffe*

**math**

How do I solve this? Describe the locus of points z satisfying: |z+2|+|z-2|=5 z is a complex number.
*February 4, 2010 by Jennifer*

**math**

Find the locus of points equidistant from two straight lines y-5=0 and y-3=0
*March 16, 2012 by Enyongama*

**geometry**

A moving point is always equidistant from (-3,2) and the line 2x-y+2=0. What is the equation of its locus? how do you solve this?
*January 7, 2013 by xavier*

**psy**

As individuals, people have the ability to make their own choices and decide for themselves. Many things can influence their ability to choose freely. Choice, change, and control are three factors that influence the degree to which people choose. How does a person’s level of ...
*June 3, 2009 by lisa*

**Positive Psychology**

As individuals, people have the ability to make their own choices and decide for themselves. Many things can influence their ability to choose freely. Choice, change, and control are three factors that influence the degree to which people choose. How does a person’s level of ...
*May 20, 2008 by BaBa*

**geometry**

A moving point is always equidistant from (5,3) and the line 3x+y+5=0. What is the equation of its locus? Please help. how to do this problem?
*January 7, 2013 by vaughn*

**math**

4. In a backyard, there are two trees located at grid points A(-2,3) and B(4,-6). a) The family dog is walking through the backyard so that it is at all times twice as far from A as it is from B. Find the equation of the locus of the dog. Draw a graph that shows the two trees...
*December 6, 2008 by Lucy*

**math**

show that the locus of a point whose distances from two given planes are in a constant ratio, is a plane.
*January 15, 2013 by manjula*

**analytical geometry**

show that the locus of a point whose distances from two given planes are in a constant ratio, is a plane.
*January 16, 2013 by manjula*

**analytical geometry**

show that the locus of a point whose distances from two given planes are in a constant ratio, is a plane.
*January 16, 2013 by manjula*

**Analytic Geometry**

Please help me to solve this problem. Find the equation of the locus of a moving point if the sum of the slopes of the line joining it to (1,3) and (4,-2) is 1.
*December 13, 2012 by xavier*

**geometry**

A moving point is always equidistant from (-3,2) and the line 2x-y+2=0. What is the equation of its locus? I need help for this problem because I am not very sure of my answer. Thanks in advance.
*January 7, 2013 by Kyla*

**add maths**

A point P moves so as to satisfy the ratio OP:PA=1:3,where O is the origin and A is the point (-4,0).Find the equation of the locus of P.
*June 14, 2014 by mandy*

**Biology**

. Which of the following is the term given to the sequence of nucleotides that contains the information to make a specific protein molecule? A. Promoter B. Gene C. Operator D. Locus I thinh it is B.
*July 13, 2014 by Dulce*

**maths**

Draw a triangle ABC with BC=10cm,AB=9cm and A11cm. on your diagram, draw and label the locus of points which are equidistant from B and C
*September 25, 2011 by madhav*

**psychology**

It has been suggested that a stable worldview may contribute to the strress protection associated with A: an external locus of control B :the fight-or- flight response C: the faith factor D: biofeedback
*July 27, 2010 by rally*

**alegbra 2**

ABC is a piece of wire bent so that straight portions AB and BC, whose lenghts are 3 inches and 4 inches, are at a right angle. The end A is fixed. What is the locus of C? I just dont know how to start!
*February 4, 2009 by molly*

**Math**

Hi SOCK is a parrallelogram .through a variable point H of[SC] draw the parallel to [OS]which cuts [SK]in E and [OC] in F. the parallel to [OC]cuts [OS]in M and [KC]in N. Find the locus of I midpoint of [HM].
*March 14, 2008 by suha*

**Geometry**

How many points in a plane are in the locus of all points equidistant from two parallel lines in the plane? a.0 b.1 c.2 d.infinitely many D?
*January 6, 2012 by Lily*

**Pre Calc**

Derive the equation of the locus of all points that are equidistant from the point F(-3,4) and the line y=-2. Leave your answer in general form. [General Form: ax^2+by^2+cx+dy+e=0]
*September 14, 2010 by Asher*

**math**

A straight line AB of length 10 units is free to move with its ends on the axes. Find the locus of a point P on the line at a distance of 3 units from the end on the x axis.
*April 30, 2010 by Edwin*

**math**

the axes are rectangular and a point P moves on the fixed plane lx+my+nz=p.the plane through P perpendicular to OP meets the axes in A,B,C parallel to YOZ,ZOX,XOY intersect in Q.show that the locus of Q is p{1/x2+1/y2+1/z2}=l/x+m/y+n/z
*January 20, 2013 by manjula*

**analytical geometry**

the axes are rectangular and a point P moves on the fixed plane lx+my+nz=p.the plane through P perpendicular to OP meets the axes in A,B,C parallel to YOZ,ZOX,XOY intersect in Q.show that the locus of Q is p{1/x2+1/y2+1/z2}=l/x+m/y+n/z
*January 16, 2013 by manjula*

**add maths**

A point moves such that its distance from point A(1,0) is twice its distance from B(-2,0).Find the equation of the locus of the point.
*June 14, 2014 by mandy*

**psy**

Logical inquiry: Find two reliable sources that provide a balanced view of internal versus external locus of control. Reference these sources in your response. Ms. Sue could you help me find those sources. thanks.
*October 24, 2008 by rose*

**geometry**

a point F is at a certain distance from a line AB .Another point P is moving in a plane such that the ratio of it's distance from F and line AB remains constant .find the locus of the point P
*April 2, 2013 by mani*

**geometry**

. Which of the following circles would show the locus of points in a plane 1 unit from the intersection of the lines x + y = 2 and x â€“ y = 4? a. center (4, 2), radius = 1 b. center (3, â€“1), radius = 1 c. center (3, 1), radius = 1 d. center (0, 0), radius = 1
*September 28, 2010 by faty*

**Geometry**

Describe the locus of all points, in space, that are 5 cm from line p. a. a line, 5 cm from line p. b. a pair of parallel lines, each parallel to and 5 cm from line p. c. a sphere with a radius of 5 cm. d. a cylinder with a radius of 5 cm. D?
*January 5, 2012 by Lily*

**Biology**

you are studying a single-gene locus with two alleles in a population that is in Hardy-Weinberg equilibrium. Examination of a large sample of individuals from the population reveals there are six times as many heterozygotes as there are homozygote recessive individuals in this...
*April 23, 2013 by John*

**Pre-Calculus/Calculus**

I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...
*July 1, 2008 by Molly*

**maths**

Q.1 PQ RS are the two perpendicular chords of the rectangular hyperbola xy = c^2.If C is the center of the rectangular hyperbola,then the product of the slopes of CP,CQ,CR&CSis equal to______ Q.2If PN is the perpendicular from a point P on the rectangular hyperbola to its ...
*January 18, 2010 by ck*

**statistics**

Bill wants to write the equation that demonstrates the model for explaining quarter-life crisis. He is using optimism, locus of control, income, and years since completing college as explanatory variables. Which of the following equations is most appropriate? Answer = a + b1X1...
*February 17, 2011 by Lara*

**psychology**

Recent neuroimaging research indicates that people with OCD show increased levels of grey matter in the _____ and the _____ relative to those who do not have OCD. 1)splenium; corpus collosum 2)locus ceruleus; hypothalamus 3)thalamus; left frontal cortex 4)thalamus; right ...
*December 9, 2012 by kelly*

**Calculus**

What is the use of Calculus? How is it use in jobs? What jobs use Calculus? Calculus is used in engineering, economics, any physical science, and in business (e.g., actuary studies and statistics).
*May 5, 2007 by Anonymous*

**math**

a straight line passing through the origin with slope m cuts the circle x^2+y^2-4x-2y-4=0 at A(a,b) and B(b,c). A. Find a quadratic equation whose roots are a and c ans: (1+m^2)x^2-(2m+4)x-4=0 B. if P is the mid-point of AB, find the coordinates of P in terms of m. ans: P= (m+...
*September 26, 2007 by wong*

**Algebra**

In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. Of ...
*January 11, 2010 by Anita*

**Calculus**

What is the simplest solution to the Brachistochrone problem and the Tautochrone problem involving calculus? (I know that the cycloid is the solution but I need a simple calculus proof as to why this is the case)
*May 27, 2010 by Sam*

**math**

8. In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra, and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. ...
*November 30, 2009 by poo*

**Maths again**

For the transformation w=z^2, show that as z moves once round the circle centre O and radius 2, w moves twice round centre O radius 4. I am okay finding the radius and centre of the locus but how do I show it moves twice roundfor w for z turning once. See my other post. ...
*February 24, 2007 by Jake*

**math-calculus**

1.For any function y+f(x), express dy/dx using limit notation. Give a clear explanation for your given answer. you probably meant to type y=f(x) By definition dy/dx = Limit (f(x+∆x) - f(x))/∆x as ∆x-->0 The explanation of this equation is the whole basis ...
*March 26, 2007 by Chris*

**calculus**

Can someone please tell me what the word "WHOLE" AND "IRRATIONAL" MEAN IN CALCULUS? THANKS
*September 2, 2008 by Mike*

**Math:Calculus**

Use the Fundamental Theorem of Calculus to find the derivative of g(x)=1/(1+t^5)dt in the interval 1 to x.
*November 22, 2010 by HELP!!!!*

**Calculus**

Use fundamental theorem of calculus: Int(pi/2_pi) of e^(sin(q))*cos(q)dq
*April 28, 2011 by Rachel *

**Calculus Help **

Use calculus to find the area A of the triangle with the given vertices. (0, 0), (3, 1), (1, 8) A = ????
*May 1, 2014 by Anonymous*

**Calculus, bobpursley! **

This has to do with my last Calculus problem. I need help on it..The part I replied to after you answered the question.
*September 21, 2010 by Leanna*

**Calculus**

The area is bounded by y= x^3, x= 2 is rotated around the x-axis. Find the volume using calculus.
*July 24, 2012 by Ted*

**math, calculus 2 **

Use part 1 of the Fundamental Theorem of Calculus to find the derivative of g(x)= integrate from 9x to 4x of ((u+4)/(u-1))du
*August 29, 2012 by bobby*

**Calculus Precalculus**

Answer the calculus question about Point P, 45 mph, etc. It is ALREADY posted on here.
*August 27, 2011 by Zach*

**COLLEGE CALCULUS. HELP!**

the fundamental theorem of calculus, f(x)=∫(0,x) t^3+2t^2+2dt, and find f"(x). my answer was: f'(x)=x^3+x^2+2 f"(x)=x^4/4 + 2x^3/3 + 2x it said its wrong.
*April 15, 2012 by lindsay*

**calculus**

Find the arc length of the graph of y = x from x = 0 to x = 3 using calculus.
*September 11, 2010 by Denise*

**calculus**

I need help with this calculus problem. H(S)=S/(1+S) If F 1/2, -1/2 & (a+1)? I can't figure out what this mean /?
*May 30, 2011 by Tammy*

**calculus**

Why do we end up with f(x) instead of f(t) on the second fundamental theorem of calculus?
*November 7, 2011 by Jose*

**Calculus 1**

Use the fundamental theorem of calculus to find the area bounded by f(x)=3 square root of x+2x and the x-axis between x-=0 and x=1
*December 6, 2011 by Ihg*

**Calculus AP need help!**

Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function. If f(x)= ∫(4,x^3)√(t^2+10) dt then f '(x).
*April 17, 2012 by dania*

**Calculus**

I need to take a college calculus class. Can someone direct me to a site which might help me get a good start? Thanks in advance.
*July 10, 2008 by jules*

**calculus**

Use the fundamental theorem of calculus to evaluate the following integral ∫^π/2 **the bottom is zeroe. |cosx| dx
*December 13, 2011 by Roxy*

**Calculus**

Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes,and points of inflection for y = -x^4 + 2x^3 - x + 2
*October 20, 2012 by Sissy*

**Calculus**

Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. intergral s^2/(1+3s^4) ds from sqrtx to 1 F'(x)=?
*April 18, 2014 by Brady*

**Calculus**

Integrate e^(-x^2/2) dx What branch of calculus is this? Is this differential equations?
*March 7, 2008 by mathstudent*

**calculus**

Find the limit of this calculus problem.? (5x-3)/(ln(5+4e^(x)) x=inf
*November 4, 2010 by Zel*

**calculus**

How can we verify area of square and rectangle by calculus ?
*December 15, 2011 by Abay*

**Calculus**

How can I efficiently study for a Calculus test with 8 sections?
*January 17, 2012 by Meg*

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