Algebra, help + check please
106,914 results, page 70

Chemistry (please check)
2) Calculate the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic base, given the following information: The temperature change equals 5.06°C, 50.0 mL of 1.00 M concentration of Acid 50.0 mL of 1.00 M ... 
English
Hello, can someone please check my answer? Which sentence best expresses the meaning of the following aphorism? Fools rush in where Angels fear to tread.  Alexander Pope A. Angels and fools are never seen together. B. When angels know to stay clear, fools come rushing in. C. ... 
Algebra 2
Can someone check my answers? 1. Convert 13pi/30 to degree measure. 78° 2. Find the distance between (4,4) and (8,7). 5 3. What is the vertex of the parabola y = (x + 8)^2  2? (8,2) 4. The graph of y = 6(x  8)^2 + 1 open downward. False. 5. An angle that measures pi ... 
college algebra
The sum of three consecutive natural numbers is 651, find the numbers. 3*7*31 21*31=651 is what I put for my answer but that was incorrect on the homework. Please help me Another Question I had problems with was :Your weekly paycheck is 25 percent less than your coworker's. ... 
Francais
Could you please check this short paragraph for mistakes? Thank you, I appreciate it. Quand Heffner a pensé de créer sa société il vivait dans un motel et il il n'a eu aucun espoir. Sa société ne faisaient pas bien. Cinq ans après être parti de la maison, il n'a eu ... 
english 6th
Please check for errors...THANKS Plural possessives Some careers were once mens' jobs. Any job can also be a woman's work. A firefighter's job is very dangerous. Tugboat pilot's training takes seven years. Dolores's dream is to be an astronaut. Everyone waited for reports of ... 
social studies
_________drove an ambulance packed with explosives into a crowded Kabul street on Jan. 27, setting off an enormous blast that killed at least 95 people and injured 158 others, adding to the grim toll in what has been one of the most violent stretches of the long war, Afghan ... 
Algebra 1
Will you please check my work? :) Choose ALL (if any) applicable terms for the events described, then calculate the probability of the events. Jason has a cube with colored sides: red, orange, yellow, green, blue and purple. 1. Rolling a red or a primary color. Choices: ... 
English
Color of Our Friendship Friendship is full of colors. Red is action. It makes us feel active. Yellow is happiness. It makes us feel happy. Gray is age. It keeps us living harmonously together. Friendship is full of colors. (It is a poem I made. Would you check the poem and ... 
LA Check please
which is the best paraphrase of these lines from "January"? Fat Snowy Footsteps Track the floor, A)Thick, snowy footprints show where animals walked B)Thick, snowy outlines of feet mark the floor ****** C)Large snow boots lie on the floor of the house D)A fat, snowy creature ... 
Physics Check My Work Please
Determine the minimum angle at which a roadbed should be banked so that a car traveling at 20 m/s can safely negotiate the curve if the radius of the curve is 200m. * Data: v=20 m/s r=200m *Formula TAN(theta)=v^2/rg *Solution TAN(theta)=(20 m/s)^2/(200m)(9.8 m/s^2) TAN(theta... 
one english question answer check
15. A Works Cited list is a list of (1 point) sources you quoted in your research paper. sources you consulted while doing research. texts written by experts in your research subject. texts recommended by other writers on the subject. It's either A or B my answer would be A ... 
science: check my answers please
h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its carry capacity at about what size? a. 0 b. 500 c. 1000 d. 1500 e. 2000 Is it 1500? 3. The plateau of population B is ... 
science (please check my answers)
h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its carry capacity at about what size? a. 0 b. 500 c. 1000 d. 1500 e. 2000 Is it 1500? 3. The plateau of population B is ... 
SOCIOLOGY
Check a school or public library or a nearby bookstore for a collection of jokes and humorous stories. How many stereotypes of minorities are in such books? What roles do humorous images of minority groups play in our perceptions and thinking? Why are stereotypes difficult to ... 
English
Read the thesis statement that follows. Identify why it is a good thesis statement. Government should provide health insurance because the costs of uninsured people damage the economy. A.It is interesting B.Everyone already knows it’s true. C.It mentions a broad topic, makes... 
help on a question
I needed help on a physical science question. When the molecules in a body move with increased speed, it's possible that the body will change from a... A) gas to a liquid B) gas to a solid C) liquid to a solid D) liquid to a gas PLEASE HELP ME!! If the molecules are increasing... 
Math
Please double check my answer. On three consecutive passes, a football team gains 7 yards, loses 22 yards, and gains 49 yards. What number represents the total net yardage? My answer: The total net yardage is 34 yards. 
Calculus (Normal Line, please check my work)
The slope of the line normal to the graph of 4 sin x + 9 cos y = 9 at the point (pi, 0) is: Derivative: 4cosx  9siny(dy/dx) = 0 (dy/dx) = (4cosx) / (9siny) (dy/dx) = (4) / 0 Normal line = 1 / (4/0) Does this mean that the slope of the normal line is undefined, or did I do ... 
Engliish LitPlease check
"Those RULES of old discover'd not devis'd Are nature still, but Nature Mehtodiz'd Nature, Like Liberty is but restrain'd By the same Laws which first herself ordain'd What is this an example of simile hyperbole analogy overstatement personification I'm thinking it is either ... 
English  check my answer, please.
"The study will be conducted with all haste by the Office of Public Mendacity; nevertheless, the Office will fail to blame the culpable." This statement: includes a shift in tense. *** includes a passive constructionone in which the subject receives the action of the ... 
English
Can you please check these sentences I'm doubtful about? Thank you very much. 1) My parents like my clothing style because they think that wearing practical clothes is the most important thing/most important is to wear practical clothes/ 2) I was given these trousers for my ... 
Trigonometry
A clown is juggling at a circus. The path of a ball is given by the parametric equations x=2 cos T + 2 and y = 3 sin T + 3. In what direction is the ball moving? Up and to the right counterclockwise down and to the right clockwise After graphing it and observing its ... 
English
Can you please check these sentences for me? Thank you. 1) Henry believes beauty to be not as superficial as thought. 2) He urges Dorian to enjoy his youth now that he can, while it won't last for ever. 3) He also urges him to give in to any kind of sensations forgetting moral... 
CellBiology
For membraneassociated proteins, the consensus sequence _______ is found on the inchoate (new) polypeptide and ______ to halt. a. pribnow, replication b. signal peptidase, transcription c. stoptransfer peptide, transcription d. stoptransfer sequence, translation e. stop... 
Biochem
For membraneassociated proteins, the consensus sequence _______ is found on the inchoate (new) polypeptide and ______ to halt. a. pribnow, replication b. signal peptidase, transcription c. stoptransfer peptide, transcription d. stoptransfer sequence, translation e. stop... 
math
need to check answers please 9/113/11+7/11=13/11=1 2/11 evaluate then to lowest form One task took 7 minutes (min), a second task took 12 min, and a third task took 21 min. How long did the three tasks take, as a fraction of an hour?2/3 find perimeter of triangle 3/8 then ... 
science cell structure
An inner and an outer membrane are characteristic of which organelle? my answer: Mitochondria and chloroplasts What is the nucleus? my answer nucleus is a cell structure that contains hereditary information What is the nucleiod? my answer: the nucleiod is like the nucleus. ... 
algebra
How do you simplify [2/(x+4)]+2  [3/(x+4)]+1 I know the answer is 2(x+5)/(x+7), but I have little idea how to get there! Please help?! multiply your fraction by (x+4)/(x+4) you end up with [2 + 2(x+4)]/[3 + (x+4)] simplify and you will get your answer. oooooooh thanks! 
Algebra
I need help refreshing my memory. How can you tell if a problem like this has a solution or not? 4x^2 I forgot how you can tell please refresh my memory. Thank you! :) 
algebra
find the L.C.D of each of the following and groups of fractions and then express the fractions of each group in terms of the L.C.D of that group... please show work 1\2,3\4,11\16 2\3,1\8,5\12 
algebra
Can someone please help. When you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent? Thanks 
algebra 2 help please
7 girls audition for 12 roles in a school play. What is the probability that at least 2 of the girls audition for the same part? 
Algebra
If a number is not a rational number then it is a? 1.an integer 2.an irrational # 3.a whole # 4.a radical I believe its irrational but that seems to easy? Please help 
Algebra
Can you please show me step by step to the answer you have given me. 1/4(8x+2). I still do not understand how you came up with the answer. Thank yooi 
Algebra
Help Please Write a function rule that represents each sentence. 1. 11 less than the product of a number y and 2 is z. 2. 5 less than the quotient of a number n and 4 is m. 
Algebra
Maria and Charlie can deliver 50 papers in 2 hours. How long would it take them to deliver 35 papers? formula please 
Algebra help please!
Which of the following angles is NOT coterminal with the other three? A. 591 degrees B. 231 degrees C. 51 degrees D. 129 degrees 
Algebra, help please!!!
The youngest person in the company is 21. The oldest is 66. A: What is the range? B: Is the range a good measure of spread for the ages in the company? Why? 
linear algebra urgent
For the orthogonal matrix A = 1/sqrt(2) 1/sqrt(2) 1/(sqrt(2)) 1/sqrt(2) verify that (Ax,Ay)=(x,y) for any vectors x and y in R2. Can someone please explain this 
Algebra
Write y = 3x  1 in function notation and evaluate the function at x = 0, x = 3, and x = z. Please label your values and use the correct notation when posting. 
Algebra
Find the simplified form of each expression. 1.(4/7y^5)^2 A.8/14y^10 B.16/49y^25 C.16/49y^10 D.8/14y^25 2.(x/2y^5)^2 A.x^2/4y^10 B.4y^25/x^2 C.4y^10/x^2 D.x^2/4y^25 I think #1 is A and #2 is A Please correct me if I'm wrong. 
Algebra
Can someone show me how to Simplify the radical expression. square root 363  3 square root 27 (in steps please) 
Algebra
Divide: (y^2y+4) divide by (y+3) I worked it out, but don't know how to put my answer can you please do it too and show me what the answer is. I used long division. 
English
Could you please check my sentences? Thank you. 1) What organization does the interviewee work for? 2) Why do endangered species serve as umbrella species? What poses the most serious hazard for the North Atlantic whales? 3) Which is the most successful way of combating risks ... 
Plz Help
You I'm entering this contest Scholastic Arts and Writing Award, and I'm a bit confused so I have to register online, then fill out a form since I'm doing it and mail my art work and writing in???? I check the site but I'm confused. I'm in 7th grade by the way to other teacher... 
to ms.sueproject part 3
On the third page, show support for each trait listed on the second page. (PLEASE CHECK THIS FOR ME) 1. skillful 2. fair 3. brave 1.skillful she can make spickd peaches and teach children and adults. 2. fair she gave sam 6 jars of spiced peaches so he could fix the school ... 
Health
The three lines of defense your body has against disease include all except? A. physical and chemical defenses B. inflammation C. immune system D. scarring True or false B cells and H cells are two important cells in the immune system that help fight infection. Antibodies are ... 
MathASAP please
1. (10x^3 + 30x 20) divided by (5x+5)? a)2x^22x+4**** b)2x^22x4 c)2x^2+2x+4 d)2x^2+2x4 2.The width, w, of a rectangular playground is x + 3. The area of the garden is x^3  7x + 6. What is an expression for the length of the playground? a.) x^2  3x + 2 *** b.) x^2 + ... 
English
 Honey, what a smell?  The baby pooed. I have to change the diaper. I have only one pack of wet tissue. You have to buy wet tissue.  OK. I will buy wet tissue on the Internet. Check the condition of the diaper of the baby frequently so that he may not have a rash.  I know... 
the awakening please help!!
I can't figure out this problem... Which character in The Awakening matches the archetypal label of "philosopher"? http://www.sparknotes.com/lit/awakening/ Check especially the analysis of major characters. Then let us know what you think. =) 
Chemistry(Please check)
1) Free energies of formation are a. always positive b. always negative c. never zero d. measured at 298K e. more than one response above is correct I think that free energies can be negative or postive so the answer cannot be e. I chose answer d, they are measured at 298K. ... 
Algebra
I need help remembering this. What way is the yaxis and the x axis on a graph. I think its x going up and down and then y going left to right. Please help Thank you 
Algebra
How do you simplify the following and please show all work. (3x(4 exponent)y(3 exponent) ______________________________ (2x(5 exponet) y(2 exponent) then the whole equation is in ()with a 2 exponent 
math(Algebra two)
describe what happens to the graph of y=X^2 in the following situations. a. y is replaced with (y+1) b. x is replaced with(x5) c.x is replaced with (x+3) d.y is replaced with (y6) i have no clue how to do this can you please help me? 
One more algebra!
If r>0, then for all p and q such that pq does not equal 0 and pr>qr we have a. p > q b. p > q c. 1 > q/p d. 1 < q/p e. none of these This one I do not get at all, either. Please walk me through it. Thank you! 
Algebra
Help please! I got so far with this and stopped because of confusion. Here is what I have so far. Let f(x) = 6/x1 and g(x) = 1 + 3/x find the composite function of (fog)(x) (fog)(x) = f (g(x)) =f (1+3/x) =6/x1 ???? 
Algebra 1A
I need help please!!! Translate to an inequality. The average speed, s, was between 130 & 140 mph. Translation 130 ? s ? 140. Thanks 
algebra
Write an equation of the line containg the given point and parallel to the given line express answer in the form y=mx+b (7,8),x+2y=7 Please help 
Algebra
Please help...Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. y=log7 x 
Algebra 1
f(x)=x^2+3 Solve for f(2)and f(5) I need help, can someone please help me by explaining step by step how to solve this problem, I am most grateful to you. Thank you before hand. 
Algebra 1
f(x)=x^2+3 Solve for f(2)and f(5) I need help, can someone please help me by explaining step by step how to solve this problem, I am most grateful to you. Thank you before hand. 
algebra
please write algebraic equation and solve thanks length of movie projected at 24 frames per second ; length(L)=24 f. solve for f 
algebratrig
Can someone please explain to me how to graph sine and cosine step by step because I am so confused and I really really need help. 
algebratrig
Can someone please explain to me how to graph sine and cosine step by step because I am so confused and I really really need help. 
algebra
consider the function f(x)=9/x and g(x)=9/x find f(g)x))and any values that may be excluded what is g(f(x)) and any values that may be excluded and functions f and g inverse of eachother please show work 
college algebraneed help please!!
write the standard form of the equation and the general form of the equation of the circle with radius r and center (h,k) r=10; (h,k)=(8,6) 
Chemistry
I am dealing with the integrated rate laws. Can somebody please help me with my algebra? First order ln(A)=kt+ln(B) solve for t,and k and B Second order 1/(A) = kt+1/(B) solve for k and t and B 
Algebra
What are some reallife examples of exponential decay? Please help me think of some ideas...except radioactive decay. 
College Algebra
Please, I need your help!How much water must be evaporated from 16oz of a 2% salt solution to make a 4% salt solution? 
Algebra 2 (Please, help me!)
The graph of a function passes through the points (9,6) and (12, 3). What are the coordinates of these points after the function has been compressed by a factor of 1/3? A: ? 
Algebra ll
Please help!! I do not understand any of this!! Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree 4; zeros: 2, multiplicity 2; 3i 
Algebra Help ASAP PLEASE!
((I forgot how to do find inverse functions and this is important)) Find the inverse function of g(x) = 2x + 4. A) g^(1)(x) = 4x + 2 B) g^(1)(x) = 2x + 1/2 C) g^(1)(x) = 1/2x  2 D) g^(1)(x) = 2x  4 I *think* it might be C but I'm not sure. 
intro to Linear Algebra
Find the point that is onefourth of the way from P=(2,5,3) to Q=(1,2,5). Please show stepbystep, this way I can learn it. Thank you. 
Algebra 2
A single die is rolled. find the probability of rolling an even number or a number less than 5, what is the probability Please help me with this question!! 
College Algebra
Graph the inequality on the numberline and then write it in interval notation. 6x+5(x+5)≥7x+45 and 12x+4(x3)<3x+53 Please help me with these equation and how to write the solution on a numberline. Thanks. 
Algebra II
How do you find the vertex of a quadratic function? What are the steps to solving a quadratic function using factoring? Please help! 
Intermediate Algebra Simplify
Simplify: this is a triple decker fraction 1/a + 1/c divided by a^2  c^2 divided by ac I am stuck on this one please help. 
Algebra
Find a polynominal for the perimeter and for the area. The demensions are: Width:b+3, Length:b The perimeter is: The area is: Do not factor. Please help. 
Algebra
Please help. I need to find the quotient function of the following: Given that f(x)=x^23 and g(x)=2x+1 find each of the following if it exists: a. (f/g)(root3) b. (g/f)(1/2) 
ALGEBRA
If I divide 28x^330x^267x21 BY 7x+3...will I get 4x^210x21? THEN 28x^330x^221THEN 14x^215x^221???? PLEASE HELP!!! 
algebra, help please?
So the problem is y2=y+2 Would I subtract 2, or add the two? because i know you have to do something with the two, but I have no idea what.. Thank you! 
ALGEBRA/PLEASE HELP
Write an equation of the line containing the given point and parallel to the given line. Express in y=mx+b. (4, 9); 9x = 8y+5 
Algebra
STILL DON'T GET THIS can anyone explain me this please a cylinder has a volume of 19cm^3. If the radius is doubled, what is the volume of the new cylinder? HOW TO DO THIS 
Algebra
The length of a triangle is twice the width. The area is 2yd^2. Please, find length and width and simplify. :) 
Algebra
Given that, 9,554 divided by 562=17, how can you find the quotient 95,540 divided by 562? Please help answer thanks 
algebra
The area of a triangle is 25 cm squared. The base is twice the hight find the hight of a triangle. please help me I cant do it without a help!!! 
algebra
I have a rebus puzzle it says THRU in bold print and AND in regular print THRU AND PLEASE HELP! ! 
Algebra II
(34yi)(6+7i)[(23yi)3(1+7i)] Express it in a+bi form I got 19+42i21yi+28y but I do not know how to express it in a+bi form, can you please help me with it? 
Algebra
Can you please advise if I worked this problem correctly: 11 + x = 15y 2x  5y = 48 15y = 11+x y = .73 + 15x 2x (.73 + 15X)  48 2x 3.65 75x = 48 73x  3.65 = 48 x = 51.65 x = .70 
algebra
Find the coordinates of the circumcenter for ∆DEF with coordinates D(1,1) E (7,1) and F(1,5). can you please explain how i can find this answer? i am having trouble 
Algebra problem
Multiply (x5/4x+8)*(12x^2+32x+16) A. (3x+2)/4(x5) B. (x5)(3x+2)/4 C. (x5)(3x+3) D. (x5)(12x+8) Please help me solve this problem because all I get is 3x^213x10 (which isn't a choice.) 
algebra
^ = exponent **show work please A sheet of 67pound paper has a thickness of 100^1 inch. a. write and evaluate an expression for the total thickness of 5 sheets of 67pound paper b. write and evaluate an expression for the total thickness of 2^3 sheets of 67pound paper. I've... 
algebra  exponentials
My question is how do I know that N increases by a factor of 2.9 each day. (see below) Let N(t) be number of bacteria after t days. N(t) = Pa^t for some constants P and a. N(2) = 5400 and N(6)=382,000. a)before working problem, estimate value of N(5). b) write down 2 equations... 
math
please check my answers A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number < 2) (1 point) A. 1/6 *** B. 2/6 C. 4/6 D. 3/6 2. P(number ≥ 3) (1 point) A. 4/6 **** B. 1/6 C. 2/6 D. 5/6 3. P(complement of 4) (1 point) A. 1/6... 
Algebra
Can you please help with this problem: At Super Saver Mart (SSM), you can buy three packs of toilet paper and seven boxes of cereal for $46.00. You can also purchase 8 packs of toilet paper and 4 boxes of cereal for $75.00 at SSM. What is $14 more than the combined price of ... 
Algebra
I am having a problem with solving a composite function in Algebra 1 How do I solve f(x) = 2x + 1 and g(x) = 4x? Don't I need more info? No, that is all you need. I it unclear what you want to do here. see http://library.thinkquest.org/C0110248/algebra/functions_c.htm 
math
can you check my answers please. Use the Leading Coefficient Test to determine the end behavior of the polynomial function. f(x) = 4x^4 + 5x^3 + 2x^2 + 4x  3 i got that it rises to the left and rises to the right f(x) = 5x^4  2x^3  4x^2  4x + 2 i got that it falls to the ... 
math
can you check my answers please. Use the Leading Coefficient Test to determine the end behavior of the polynomial function. f(x) = 4x^4 + 5x^3 + 2x^2 + 4x  3 i got that it rises to the left and rises to the right f(x) = 5x^4  2x^3  4x^2  4x + 2 i got that it falls to the ... 
Integrals Log/Ln
Can you check this please i'm not sure why it's wrong .__. 1) indefinite integral of 1/t *ln(t) dt the t*ln(t) is altogether on the bottom i got ln(ln(x)) + C 2) find the indefinite integral of 1/(sqrt(t)*[12*sqrt(t)]dt sqrt(x) is on the bottom. i got ln(12*sqrt(t))+C can ...