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July 26, 2016

Search: square root of (a^2+b^2)=a+b true or false

Number of results: 22,094

English
Which sentence most clearly exhibits bias? A. The professors points appear to be based on outdated research. B. If my argument is true, Blakes argument is clearly false. C. Few would disagree that poor people are incapable of rational thinking. D. When a major storm is ...
March 7, 2015 by jb

Science
This is not questions its the answers hope it helps took a long time to type. A basketball momentarily changes shape as it bounces off the floor. This is due too balanced forces acting on the ball TRUE* FALSE* A ball slowing down as it rolls across a carpet is a example of ...
March 23, 2016 by Peanut buddy

Math
1. The figure below is a parallelogram which statement must be true? D___________E | | |__________ | F G a.line Df is parallel to line de b. Line Df is parallel to line eg c. Line fg is parallel to line eg d. Line fg is parallel to line df 3. All __ are rectangles A. ...
February 8, 2016 by Help

Literature 1010
Transitions function much like road signals. A) True B) False this question does not make sense. when i look in my book ans online, i do not see anything referring to the Transitions function can someone tell me what a transition function relating to Literature.
March 6, 2011 by Alex

GRAMMAR
Question: A predicate is the part of the sentence that always contains a noun or pronoun. TRUE FALSE The predicate is one of the two main parts of a sentence - The other being the subject. The predicate is said to modify the subject. (a statement or action) - 50-50 guess. Why ...
June 30, 2011 by Leslie-To:Writeacher

Physics HELP!!
A square, 0.74m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 26.8N lies in this plane and is applied to the square. What is the magnitude of the maximum...
November 12, 2012 by Ann

Physics
A square, 0.36 m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. The axis is perpendicular to the plane of the square. A force of 14.4 N lies in this plane and is applied to the square. What is the magnitude of the ...
November 15, 2012 by Elizabeth

Physics
A particle starts from the origin with velocity 2i m/s at t = 0 and moves in the xy plane with a varying acceleration given by 2 (sq root t) where is in meters per second squared and t is in seconds. (a) Determine the velocity of the particle as a function of time. So I ...
September 14, 2011 by Katie

GEOMETRY
I'm working on a story problem that is using 30-60-90 triangles. I have to solve for the hypotenuse. The long leg is 6 feet. So, short leg would be 6 = x square root of 3 /3...Then I'm stuck. I know the hypotenuse is dbl the short leg
February 12, 2016 by sweet pea

algebra
How come the function square root of (4-x^2) has a domain of -2 is less than or equal to x is less than or equal to 2? I would think it would be x is greater than/equal to one.
October 25, 2009 by Alex

math
A square martix A is said to be idempotent if A=A^2. The only real numbers that are idempotent are 1 and 0, but this is not true for martices. Find a 2x2 idempotent other than 1 or 0.
November 25, 2010 by jim

Science CHECK ANSWERS PLZ
Which of the following gases was most likely present in Earth's earliest atmosphere? A. nitrogen B. hydrogen* C. argon D. oxygen Which of the following statements accurately describes the development of the geologic time scale? A. Scientists developed the geologic time scale ...
November 16, 2015 by Anonymous

Math
Please please help!!!!! Solve the inequality and write the solution set in interval notation 4x^3 -6x^2<0 2x^2 (2x-3)<0 2x-3<0 x= 3/2 Now I'm not sure about this 2x^2<0 x^2<1/2 sq root of x^2<sq root of 1/2 x=.7071 Right? When I plug it in the calculator it ...
June 14, 2013 by Ashley

Math
For nth root functions, I know that if "n" is even, then the domain must be equal or greater than zero. If "n" is odd, then domain will be all set of real numbers. But how do I determine the range of an n-th root function?
September 29, 2015 by ela

Algebra
A positive integer minus a positive integer is always positive. This statement is sometimes true. For example, 17 5 = 12, but 15 20 = 5. post five other statements about the addition and subtraction of positive and negative integers, and ask whether each is always true, ...
October 8, 2013 by Mary Ann

pre algebra
Each side of the triangle shown has the same length. If the perimeter of the triangle is 49 inches, the length of each side is 3 inches. true or false
June 30, 2011 by hi

pre-calc
Can someone check my work please? Convert each polar equation to a rectangular equation. Then determine the graph's slope and y-intercept. ( I'm going to type 'x' instead of theta ) r sin(x- pi/4)=2 r(sin(x- pi/4))=2 r(sinx*cos pi/4 - sin pi/4*cosx)=2 r(sqrt2/2*sin x - sqrt2/2...
April 12, 2007 by Jessica

Geometry
Please Please HELP!!!! I need the answer to this and i've worked it out but I don't know if it is correct... Please check my answer!!!! The polygons are regular polygons. Find the area of the shaded region to the nearest tenth. I can't post a picture of it but it shows a ...
April 14, 2016 by Becca

Math
Math.. find limit help? Find the given limit. (x→ 1)lim: (square root x-1) + 1
April 26, 2011 by Jacob

PHYSICS
The hydraulic gradient in an 10-ft-thick aquifer at a site of uniform flow prior to pumping is -0.02. The hydraulic conductivity is 100 ft/day. True or False: After pumping starts at a well at a rate of 10,000 cubic feet per day, the distance from the well to a point of ...
March 9, 2011 by MARK

health
Please help... Staying fit requires all of the following EXCEPT _______. A-a rigid fitness plan B-physical activity C-healthy habits D-healthy eating 5. True or False: To develop a personal fitness plan you should consider which exercises and sports you like the most.
May 3, 2011 by mo

maths
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question,true if heads and false if tails). What is the chance ...
April 27, 2013 by anonymous

English
Question about the short story the Wager by Anton Chekhov: The climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. True or False I am really confused about this ...
October 9, 2014 by Aivar

Grammar
1. The rain poured into the river and flooded the nearby community. -simple sentence 2. Some indefinite pronouns are always plural and require plural verbs. select these pronouns. A. both, many, several B. everyone, everybody, any, several C. somebody, someone, both, most D. ...
July 1, 2011 by lizzie

Cultural Anthropology 101
Theocracies are: (Points : 1) 9A)****determined by the religious beliefs of the society. based on the accumulation of wealth by individuals. a group of elected officials. are sanctioned by Big Men. 2. Chiefs within chiefdoms generally gained their positions: (Points : 1) by ...
December 16, 2012 by mandy

Math
I need help with this problem. (Just imagine a small square with 5x-1 at the top of the square, 2x on the left side of the square and in the right hand corner of the square there is a box on the top is a 3 and on the left side is a 2.) You have to figure it out the area of ...
March 21, 2009 by Madeline

Algebra
Solve x^2-10x+22=0 by using the quadratic formula. After I substituted in the values for A, B, and C, and broke it down I got 10 plus or minus 2 times the square root of three/2. How do you break this down further? I know ten can be divided by 2 to get five, and 2/2 is 1, but ...
October 10, 2009 by Corinna

physics
A 4kg object is subjected to two forces, F1=2Ni-3Nj, and F2=4Ni-11Nj. The object is at rest at the origin at t=0. What is the objects acceleration? I know you use F=m*a Do you add the two F vectors together & take the square root to find the sum of F? ex: Fnet=6Ni-14Nj & then ...
September 19, 2010 by J

Math
Hi,I need to know how to do question like this without using a calculator. Can anyone help please. Which of the following is closest to square root of 4000 A)40 B) 60 C) 200 D) 2000 I know the answer is B , but I did it on the calculator. Can someone show me how to get the ...
July 15, 2010 by Mike

Algebra II
What two numbers are represented by each of the following? -6+/- sqrt 6 -6 plus or minus square root 6 not sure how to type the question. I think the answers are -6 + sqrt 6 -6 - sqrt 6 I'm just not sure what the question is actually asking for. Could someone please help me. ...
May 20, 2011 by jet

math
the volume of an equilateral triangular frustum is 183 square root of 3 cubic inches. The upper base, 9in above the lower base, has an edge which measures 8in. Compute for the edge of the lower base.
February 19, 2012 by kitOy

algebra
The stooping distance d of a car after the brakes are appied varies directly as the square root of the speed r. If a car traveling 40mph can stop in 90 ft., how many feet will it take the same car to stop when it is traveling 60 mph.
June 1, 2012 by ll

math
write as a single logarithm: -2logbase3(1/x)+(1/3)logbase3(square root of x) please show the steps to solving this. thanx. remember that 1 log (AxB) = log A + Log B (same base) 2 log (A/B) = log A - log B 3 log A^n = n log A use these three rules and it becomes an easy question.
February 25, 2007 by michelle

geometry
State what conclusion can be made IFx=5 and the given statement is true IFx>x=z, then y=14z. I don't understand this part of your statement: "IFx>x=z," Please clarify this. If x>X-2, then y=14x Ok, I will suppose this is the question then "State what conclusion can be...
October 2, 2006 by maria

MATH HELP PLEASE
The slash (/) line represents that the number is a fraction. divide: sqrt45 / sqrt81 = simplify: 7sqrt3 / sqrt5 = Multiply: sqrt7/sqrt8 X sqrt24/sqrt49 = Thanks for the advice regarding how to show square root symbol correctly. Also thank for taking the time to help with these...
October 29, 2011 by TO: drwls

geometry
(imageshack)123 (.)us(/)photo 123 (/) my-images 123 (/)42(/) 123 2vja. jpg(/)123 Open that link please , just delete the parentheses and spaces and 123's please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the areas of traingle cef, ...
November 9, 2013 by Barbie lee

Chemistry
True/False 1. Diatomic molecules contain two atoms?T 2. Electrons travel in pairs? T 3. The energies needed to break chemical bonds can be measured T 4. Bonding involves all the electrons in an atom T 5. Lewis structures are used to describe bonding? F 6. More than one pair of...
January 16, 2011 by Chem

Geometry
ABGF is a square with half the perimeter of square ACDE. GD = 4in. Find the area of the shaded region. Please help me work this problem out I am stuck. It's a square and in the top right corner there in another square inside it that is 1/4 the size of the big one. From that ...
June 7, 2016 by Pleasehwlp

Geometry (PLEASE HELP!!!)
Please Please HELP!!!! I need the answer to this and i've worked it out but I don't know if it is correct... Please check my answer!!!! The polygons are regular polygons. Find the area of the shaded region to the nearest tenth. I can't post a picture of it but it shows a ...
April 14, 2016 by Becca

Geography
1. Demographers report the population density of a country as a measure of total population relative to land size. TRUE FALSE Answer : true 2. Which of the following is not an example of adequate physiological population density? A. Cities such as Luxor, Cairo, and Alexandria ...
October 30, 2015 by Geo

roots
what root goes in this blank? i can't figure it out. She wore ________sox at the beach. argyll bobby crew (none of which are roots, however; sorry) =( How about "no" (root of "nothing")? I hope this helps. Thanks for asking.
April 11, 2007 by Jordan

Algebra
There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root. 4x^2+16x-9 2x^2+80x+400 x^2-6x-9 4x^2-12x+9 -x^2+14x+49
February 7, 2015 by Juliet

algebra
There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root. 4x^2 +16x - 9 2x^2 + 80x + 400 x^2 - 6x - 9 4x^2 - 12x + 9 -x^2 + 14x + 49
February 11, 2016 by Zane

Algebra
Solve the quadratic equation. 3x^2-15x+18=0 I know that the formula to quadratic equation is x=-b+and-(square root)b^2-4ac divided by 2a. I know that a=3, b=-15 and c=18, then subsitute in and get two answers, my problem is that I keep getting an answer that does not work ...
April 22, 2010 by Lexie

geometry
I need to find the area of the shaded portion of a circle with a square in the middle all corners touching the circle. My square has a line measurement of 10 cm. I know that the area of the square is 100 cm(10 x 10). But I am not sure what to do with the circle. Is the ...
May 29, 2010 by bart

Phyiscs
True or false: When a system consists of several objects, each with their own mass and velocity, the linear momentum of the system as a whole is simply the product of the system's total mass and the velocity of the system's center of mass.
October 30, 2012 by Angelena

Health
Please check 1. Which is a common viral disease? A. strep throat B. lyme *** C. tuberculosis D. common cold 2. which statement is about the flu? A. there is no cure B. there is usually a fever *** C. It typically lasts 3-7 days D. it spread by contact with infected people or ...
March 11, 2015 by Anonymous

PRECAL!
Prove: (3cosx + 4sinx)^2 + (4cosx - 3sinx)^2=5 ...this is all under the square root sign. this is what i did please check. i multipied both binomials. but i get cos square x..and sincosx ..how do i combine them..please help! In this case, after multiplying binomials, there ...
March 27, 2007 by just

Physics-can anyone check my work?
A particle starts from the origin with velocity 2i m/s at t = 0 and moves in the xy plane with a varying acceleration given by 2 (sq root t) where is in meters per second squared and t is in seconds. (a) Determine the velocity of the particle as a function of time. So I ...
September 14, 2011 by Katie

Math
The smallest real number in the solution set of 2x > 6 is 4. A) True B) False - The smallest real number in the solution set of 2x > 6 is 3. C) False - The smallest real number in the solution set of 2x > 6 is a number greater than 3. For example, 3.01 is a real ...
October 4, 2011 by Michelle

Math
The smallest real number in the solution set of 2x > 6 is 4. A) True B) False - The smallest real number in the solution set of 2x > 6 is 3. C) False - The smallest real number in the solution set of 2x > 6 is a number greater than 3. For example, 3.01 is a real ...
October 4, 2011 by Mary

Math
Find all solutions to the equation sqrt(2-3x)= 9. Express your answer as a common fraction. I squared both sides and I got 4-9z^2=81 and then -9z^2=77 then I divided both sides by -9 and now I am stuck, I know I can square root both sides. But I think something went wrong.
December 3, 2014 by Mark

why will no one answer? chem
The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the following ...
February 27, 2012 by john117

Math
A company manufactures fence sections for residential use. The number, s, of sections that can be produced per day is related to the number of hours, h, of labour required by the function s=2.1 square root h (Show your work) a) State the domain and range for the function. (2 ...
October 8, 2014 by Alex

Math
A rectangular box is 4cm wide, 4cm tall, and 10cm long. What is the diameter of the smallest circular opening through which the box will fit? Round to the nearest tenth of a centimeter. Is it 4 squared plus 4 squared which equals 32 then take the square root of 32 and get 5.65...
February 23, 2016 by KIM

Algebra
Solve the system of equations and check your solution. x^2+y^2=25 x+2y=10 I tried but I got only the 2 x values 8 plus or minus the square root of 164 all over 2. I know the answer is wrong but I can't find my mistake. Can you show me step-by-step how to solve this system of ...
April 6, 2016 by Anonymous

Math
Vanessa presented a report on Japanese tea rooms to her class. The floors are usually covered with square and rectangular tatami mats. She drew one way to cover square floor with a square half tatami mat qnd four rectangular full mats. The area if the half mat is 8100cm (...
September 11, 2011 by Bella S

Math
A rectangular flowerpot is 20 inches long 8 inches wide and 6 inches high. true or false if andy fills the flowerpot 2/3 fullof potting soil the expression 2/3(20 + 8 + 6) could be used to find the amount of potting soil he needed
December 5, 2010 by Lisa

physics
A hydrogen atom in an excited state emits a Balmer beta photon followed by a Lyman alpha photon. The electron decayed from the third excited state to the first excited state to the ground state. True or False.
February 13, 2014 by Rashida

Pre-Calc
1.) Suppose that y varies directly as x. If y is 5 when x is 30, the constant of variation is 150. True Or False 2.) If w varies directly as z and w = 9 when z = -6, find w when z = 3. 3.) If y varies directly as x and y = 2 when x = 4, find x when y = 4.
October 2, 2014 by Anna

Chemistry
I am in an AP high school course and the teacher pulled a fast one on us by asking us what happens to K in an reversible equilibrium equation if the equation is flipped. K equations I am talking about go K=(Products)/(Reactants). The options were they take the square root of K...
April 9, 2008 by Molly

economics
which ones are true or false? property rights include the right to buy or sell one's resources and goods All countries are equally effective at enforcing property rights Property can be tangible or intangible The enforcement of property rights prevents many mutually beneficial...
October 9, 2014 by joshkuss

Algebra Sq Rt
I have a sq rt sign with a 3 on the left side. That means I'm looking for the cube of the number inside the square root? That number is 189xto the 8th power. So I multiply 189x 8 times before I find the cube or do I find the cube of 189?
February 2, 2008 by Micah

Algebra II repost, pls help
What two numbers are represented by each of the following? -6+/- sqrt 6 -6 plus or minus square root 6 not sure how to type the question. I think the answers are -6 + sqrt 6 -6 - sqrt 6 I'm just not sure what the question is actually asking for. Could someone please help me. ...
May 20, 2011 by Jet

algebra
true or false?The surface area of an open rectangular box is the same as the surface area of a closed rectangular box.
May 26, 2011 by ashly

Chemistry
An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are true? Correct the false statements to make them true. A. It takes more energy to ionize (completely remove) the electron from n=3 than from the ground ...
December 1, 2014 by Anonymous

Math- Help!!
A local tennis pro-shop strings tennis rackets at the tension (pounds per square inch) requested by the customer. Recently a customer made a claim that the pro-shop consistently strings rackets at lower tensions, on average, than requested. To support this claim, the customer ...
December 12, 2009 by Cyndi

Math
A quiz contains three True/False questions. If a student attempts to answer the questions by guessing, what is the probability that the student will answer all three questions correctly ?
April 25, 2016 by Lauren

Precalculus
Find the limit by direct substitution. A. lim x-> 5 square root cubed of x^2 -2x - 23. I replaced all of the x's with 5 and got -2. B. lim x-> -2 (4x^2 - 7x) / (6x + 10). I replaced all of the x's with -2 and got -15. Go to picturetrail and type in rowdy33. It's problems...
May 4, 2010 by Randy

Math
Out of a group of (50,000) births, the number of people, f(x), surviving to age (x) is modeled by the function f(x)=5000 square root 100-x. To what age will (20,000) people in the group survive?
January 5, 2011 by Marie

space
Imagine that all gravity in the Universe was magically turned off (except the gravity of the Earth),and everything stopped moving.Earth's gravity will now begin to pull everything in the Universe slowly toward it. True or False?
December 1, 2008 by eduy

Maths
Dear Friends, Please help on this problem :- Cindy draws 3 Squares with different sizes. The sides of Square B is 3/5 the total sides of Square A and C. The sides of Square C is 1/7 of the total sides of Square A and B. if the area of Square A is 144sqcm, what is the total ...
October 6, 2014 by J.Sarah

Algebra 2
Orlando is making a design for a logo. He begins with a square measuring 20 inches on each side. The second square has a side length of 16 inches, and the third square has a side length of 12.8 inches. Which square will be the first square with a side length of less than 8 ...
May 20, 2015 by Kuaersh

Algebra Grade 7
the ratio of square H's length to square I's length is 3 : 5, if the length of square H is 18 meters, what is the perimeter of square I?
October 9, 2012 by randomchik

Math
For what value of k does the equation x2 + k = kx 8 have: Two distinct real roots One real root No real root
September 1, 2012 by Trevor

math
A vehicle leaves a skid mark of 40 ft before stopping. What has the approximate speed of the vehicle before it stopped? (the formula is speed=.7 times length, then find the square root times 5.5) Is is 25-35 mph?
October 26, 2010 by Summer

Maths (Linear and Quadratic Equations)
I need to solve a pair of equations where one is linear and the other is quadratic. 2x2 + 3xy + y2 = 0 3x + y = 2 last 2 in 2x2 is square root two, same after y2. help please!!!!!!!!!!!!!!!
November 21, 2012 by Saud

calculus
is this correct? use the integral test to determine if this series is convergent or divergent: the series from n=2 to infinity of 1/(n*square root of (ln(n))) I said it was divergent because the integral went to infinity
March 16, 2008 by john

physics
A rock is tossed straight up with a velocity of 37.1 m/s. When it returns, it falls into a hole 18.8 m deep. What is the rock's velocity as it hits the bottom of the hole? Responses The gain in kinetic energy equals the loss of potential energy. (1/2) M (V2^ - V1^2) = M g *(18...
October 8, 2008 by Vishnu

PSYCH
1 Which of the following is NOT one of the three fundamental features of science? a empirical questions b public knowledge c mathematical equations (My Answer) d systematic empiricism 2 A set of beliefs can be said to be pseudoscientific if it lacks one or more of the three ...
February 27, 2015 by Check My Answers for me please

math
how is the sixth root of 356 related to the eleventh root of 356?
June 1, 2010 by Anonymous

maths
if squre root 196/xmultiply by squre root of 90/x=4.find x
July 8, 2015 by devang sharma

Math
If 0<theta<90 and tan theta= (square root 3)/2, find cos theta? tan(t) =3 /2; cos(t) = 1/(1+(tant)^2)= 1/(1+3/4) = 2/7 right or wrong?
October 3, 2008 by House

Psychology
1 Which of the following is NOT one of the three fundamental features of science? a empirical questions b public knowledge c mathematical equations (My Answer) d systematic empiricism 2 A set of beliefs can be said to be pseudoscientific if it lacks one or more of the three ...
February 27, 2015 by Jordan Please Help Check My Answers

math situation
please help multiply (-4n)square 2(2n square 2)square 2
March 31, 2012 by Sandra M

Math
When factoring a trinomial that is in the format Ax^2 + Bx + C, the number that is represented by B should be viewed as the _____? a. product of two numbers b. the sum of two numbers c. square root of two numbers d. remainder of two numbers I believe it would be B
October 7, 2008 by Jackie

Calculus
Find the dervatives: 1. f(x)=(3x+1)e^x^2 2. y = e^(sin x) ln(x) 3. f(x)=(x^(2)+x)^23 4. f(x)=sin(2x)/cosx 5. square root of x/(3x+1) 6. f(x)=sin^4(3x=1)-sin(3x+1) 7. x+y=cos(xy) The answers I got: 1. 6x^(2)e^(x^2)+2xe^(x^2)+3e^(x^2) 2. e^sinx/x + -lnxe^(sinx)cosx 3. 46x+23(x^2...
October 15, 2012 by Anonymous

math
a house has two rooms of equal area. one room is square and the other room a rectangle, four feet narrower and 5ft longer than the square one. find the area of each room? let x = dimensions of the square. Rectangle then is x-4 and x+5 Set areas equal. area of square is x2 area...
November 29, 2006 by mary-beth

Conclusions
You expect to get forty miles to the gallon in that? Why, that old wreck has a monster V8; besides, it's fifty years old and needs an overhaul. I state possibly true or possibly false due the gasoline that was made then vs. now. Also, cars or trucks in this century gets 29 ...
August 13, 2008 by Worship

Math
1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 degrees. A)4/5 B)-4/5 C)square root of 34/5 D)-square root of 34/5 I chose A 2)Simplify:1-csc^2theta/cot^2theta A)-1 B)1 C)tan^2theta D)1/sin^4theta I chose C 3)Simplify:-5(cot^2theta-csc^2theta) A)5 B)-5 C)-5csc...
February 13, 2008 by Jon

Math
Choose the most specific term that will make the following statement true. Do not assume anything more than the information given. I am a ____ because my opposite sides are congruent and parallel. square rectangle parallelogram rhombus
April 13, 2014 by lina

math 213
Tell whether each of the following is true for all sets A, B If false, give a counterexample. a. A-B= A-0 (with slashed O) b. AUB (with line over AUB) = AUB (with line over A and a line over B)
August 18, 2012 by susan

BIOCHEMISTRY
Mark each statment that is true or false and give reasons. you will get credit only if your reasoning is correct a) at a steady state of an enzyme catalyzed reaction, there is not net change in [S] or [P] b) the linear anomer of beta-glucose is the more reactive form c) ...
January 25, 2013 by UCI KID

8th Grade Algebra
Find each product. { this means the square root sign. 1. (3+2{20)(5+3{45) 2. The length and width of the rectangle are x-5 and 2x-6 a. Write a trinomial that represents that area of the rectangle. b. What is the smallest integer value of x that will give positive values for ...
January 19, 2009 by Joy

chemistry
What pb2+ concentration should be maintained in PbNO3 to produce a solubility of 1.710−4 PbI2/L when PbI2 is added? I found the ksp of PbI2 to be 7.1*10(-9), divided the ksp by the solubility, and took the square root, resulting in 6.5*10(-3). my answer is wrong :s ...
October 17, 2011 by Anonymous

Physics
A person is initially 8 m from a point sound source which emits energy uniformly in all direction at a constant rate. If the intensity of the source is to be halved but the sound is to be as loud as before, what distance should the person be from the source? Ans: 4 square root...
June 5, 2014 by Ariana

Physics
8. A 4.70 m long pole is balanced vertically on its tip. What will be the speed (in meters/second) of the tip of the pole just before it hits the ground? (Assume the lower end of the pole does not slip.) I did V^2=0^2+2(9.8)(4.70) and was wrong. I did remember to square root ...
April 15, 2015 by Victoria

Physics
8. A 4.70 m long pole is balanced vertically on its tip. What will be the speed (in meters/second) of the tip of the pole just before it hits the ground? (Assume the lower end of the pole does not slip.) I did V^2=0^2+2(9.8)(4.70) and was wrong. I did remember to square root ...
April 15, 2015 by Victoria

Math
The least squares regression line is a unique line for each data set. True The least squares regression line minimizes the sum of the residuals. False
September 19, 2013 by Student

maths
how do i solve this equation? 21(X-(1/7))^2= 3/7 thx Divide both sides by 21 Take the square root of both sides. Rewrite it as x - (1/7)= sqrt [(1/21)*(3/7)] = sqrt[(1/7)*(1/3)(1/7)] = (1/7) sqrt(1/3) x = (1/7)[1 + sqrt(1/3)] tahnks x=(2)/(7),0
July 12, 2007 by Emma

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