# math,correction, bobpursly

137,830 results

### math,correction&help

Is this right:if it still needs more can someone help me out what else can i say....thanks why are polynomials important? polynomials are important because the are used to determine and solve the unknowns in equations. Many natural processes can be modeled in math equations, ...

### math,help,bobpursly

What are some challenges for rational expressions? Also on my previous question about why are polynomials important bobpursly can you expalin it to me towards what you ment about your responce because i still do not undertand...thanks when you get a chance. Polynomials are ...

### math correction

correction what is : 1 x 10^-14 / 2.54 x 10^-3 the x's are (times) not variables thank you.

### bobpursly,math ,algebra

Can you explain to me how is 3and 1/3 minus 1 and 2/3 equal to 1 and 2/3 3 1/3 = 10/3 -1 2/3 = -5/3 -------------- 10/3 - 5/3 = 5/3 5/3 = 1 & 2/3 Another way. 3 1/3 = 2 4/3 -1 2/3 = - 1 2/3 ---------------- 2 - 1 = 1 and 4/3 - 2/3 = 2/3 so final answer is 1 & 2/3

### English

Can you please tell me if these sentences should be evaluated as grammatically wrong in a test? I'm looking forward to your prompt reply THank you 1) Was the hotel as they expected it to be? The hotel was different from they expected (Correction: No, it wasn't. It was ...

### Analytical CHM Lab

I am filling out my neutralization titration data sheet and i did not understand how to find buret correction (ml) and corrected volume(ml) and Molarity of NaOH without buret correction and as well as with buret correction. in the lab we have used 50 ml of buret for KHP mass(g...

### math,bobpursly,

4x-2x^2+4x^3 from 4x^3+x-3x^2 4x^3+x-3x^2 -( 4x-2x^2+4x^3) then changing signs and rearranging terms. 4x^3+x-3x^2 -4x^3-4x+2x^2 answer after ADDING the above.. -3x - x^2 so for the answer isn't it the same as what i had -x^2-3x doesnt' x^2 goes first then -3x

### English

Thank you very much for your corrections! I just wanted to know if I should evaluate these collocations as mistakes. I included some of the corrections myself. 1) Women had to provide an education to children. (Correction: provide someone with...) 2) Respectability consisted ...

### bobpursly

Ok so I am still coming up with problems is it possible for bobpursley to answer this: why does Centripetal force increase with frequency, and same with radius? Thanks for the help

### MATH

BACKPACKING ASLO HAS ITS BASIC FOUR,THESE BEING IN IMPORTANCE,HIKING SHOES,THE BACKPACK,SLEEPING GEAR,AND SHELTER. WHAT CORRECTION SHOULD BE MADE TO THIS SENTENCE? A)change being to are b)change its to it's c)change the colon to a semicolon d)no correction is necessary e)...

### math,correction, bobpursly

Since when is 5^7 =8125? if a number is a multple of ten, that means the last digit is zero. The leading digit cannot be zero. 9*10^5*1 on c, again, the leading digit cannot be zero. d is right e. no leading zero is allowed. 9*9*8*7*6*5*4= ? can someone correct this for me ...

### English

As you advised me to do, I included four sentences I was most doubtful a) 1) The daffodils grow best under the shine of trees (correction: in the shade, under the trees) 2) Time is perceived subjectively / as subjective (both possible). 3) Drunk men (correction: drunken men, ...

### enlgish

today hikers prefer a shoe that is six feet high,is amde of leather,and thick sturdy soles. what correction should be made to this sentence? a)insert has before thick b)no correction is necessary

### TO BOBPURSLY

THANK YOU SO MUCH FOR SUCH INCOURAGEMENT. I'm only trying my best because i want to understand all the concepts correctly so like this i don't have worries when my final comes up.

### English

I really hope someone can tell me if my corrections are correct. As you can see, I took your advice and I corrected them myself! 1) The pilgrims arrived from different parts of society. Correction: The pigrims belong to different social classes. 2) The tales were never ...

### bobpursly

thank you for all your help that your doing and all the other tutors....

### Ethics

please check my answer thanks :) Dr. Jones made an mistake is on of the medical records Three years later Nurse Bonnie noticed the mistake and corrected it This was an improper action because A. Too much time passed B The doctor did not make the correction C. The correction ...

### English

What correction should be made to this sentence? At the same time many families having greater income can take basic shelter for granted and proceed to satisfy higher level needs in housing. A)change can to must B)insert a comma after granted C)no correction is necessary

### English

I agree with your correction but as I found the following sentence in an Italian book I just wanted to know if, in your opinion, an English mother-tongue expert could have written it. She is such a one-sided character, however, as (?) never to hesitate. Correction ......, that...

### Statistics

A conservative correction method for inflated "Alpha values" based on multiple comparisons being carried out independently on a specific data set, is known as...? A. Ad Hoc Testing B. Tukey's honestly significan differences (HSD) C. Post Hoc testing D. Bonferroni correction

### english

families with limited means are most interested in securing clean,safe, and reasonably comfortable housing than to find quaters that are especially psycholocially stimulating. what correction ahould be made to this sentence? a)change ths spelling of psychologically to ...

### language

First, you should study the openings posted in the local newspapers-subscribe to all of them if possible, or read it at the public library. what correction should be made? a)replace you with one b)replace you with they c)insert a comma after openings d)replace it with them e)...

### bobpursly,.math

Ok, assume it equals zero. 2x + 3y -6=0 subtract 3y from each side. add six to each side. divide both sides by two. its how its in the book i'm suppost to solve for x. but how? How do I solve for the following: Directions solve each literal equation for the individual variable...

### THANK YOU

THANK YOU SO MUCH BOBPURSLY.you are a great help to me, i kind of already knew that but it reassured me that i was doing the right thing, i was confused on what side to put my variable on but now i see that i can put it on either side

### writting skills

what correction should be made to this sentence? one of the lifelong memories many of us share are the moment we obtained a driver's license? a)change the spelling of memoreis to memorys b)inset a comma after memories c)change are to is d)change driver's to drivers e)no ...

### English

I did some of the corrections myself (in parentheses). Could you please check them? 1) I like doing (making/baking) cakes and reading, but I don't have time to do this (though I can't find time for reading???). 2) I've got a quite oval face. I'm friendly and always smily (...

### behavior problems (dogs)

Please check my answer thanks The problem with "quick fix" corrections designed to eliminate one specific behavior is that the A. dog may not respond to the correction. B. dog may be frightened by the correction. C. owner may be unable to utilize the technique at home. D. ...

### Health

2. When the uterus extends outside the vagina, a condition known as ______ exists. A. dysplasia B. hyperplasia C. Bartholin's gland abscess D. prolapse Answer: A (correction D) 3. The patient had a diagnosis of Addison's disease, which is caused by decreased functioning of the...

### math,correction

Factor 9x(x-7y)-6(x-7y) My answer is: (9x-6)(x-7y) well done

### language

Lets say that two drivers are involved in an auto accident, and one is injured. what correction should be made? 1)chnage Lets to Let's 2)insert a comma after say 3)remove the comma after accident 4)change is to was 5)no correction im going to say 1

### english

When you are in school, almost any Subject seems a potential area for a good job. what correction should be made in this sentence? 1)replace you are with one is 2)remove the comma after school 3)change Subject to subject 4)insert a comma after area 5)no correction necessary

### writing

When you are in school, almost any Subject seems a potential area for a good job. what correction should be made in this sentence? 1)replace you are with one is 2)remove the comma after school 3)change Subject to subject 4)insert a comma after area 5)no correction necessary

### writing skills

Sentence 5: Consider an example in which both drivers are insured under the no-fault plan. what correction should be made to this sentence ? 1. insert a comma after example 2. change drivers to driver 3. change are to is 4. change insured to insuring 5. no correction is ...

### WRITING SKILLS

When you are in school, almost any subject seems a potential area for a good job. What correction should be made to this sentence? 1 replace your are with one is 2 remove the comma after school 3 change Subject to subject 4 insert a comma after area 5 no correction is necessary

### Math 116

Correction Let R(t)= the record in the race.

### chemistry

Ethanol was used in the solutions to help dissolve the acetylsalicylic acid. Ethanol is slightly acidic, and will react with NaOH. Describe a blank correction experiment; i.e., what experiment you might do to determine how much NaOH reacts with the ethanol in your solution. ...

### correction of math

given f(x) = 5x - 3, find f (-1). My answer: f(-1)= 5(-1)-3 = -5-3 = -8 correct

### math, correction

for graphing: y =10x +40 some points would be: (-3,10), (0,40), and (3,70) yes.

### math correction

Find the x-intercepts y= x^2-2x-15 answer: x = 2 +/- sqrt 8 I don't get that. Recheck.

### Writing

With time and public support, they should be successful. What correction should be made to this sentence? 1) change the spelling of support to suport 2) replace they with one 3) change should be to should have been 4) change the spelling of successful to sucessful 5) no ...

### Writing

With time and public support, they should be successful. What correction should be made to this sentence? 1) change the spelling of support to suport 2) replace they with one 3) change should be to should have been 4) change the spelling of successful to sucessful 5) no ...

### algebra

A man invested half of his money at 5%, one-third of his money at 4%, and the rest of his money at 5.5%. If his total investment income was \$570, how much had he invested? and please show me the solution to solve this problem. thanx sorry bobpursly I cant understand your ...

### math,help,correction

directions: subtract 4x-2x^2+4x^3 from 4x^3+x-3x^2 the answer that i came up with was: x^2-3x Is this correct. How did -3x^2 -(-2x^2) become x^2

### math,correction

solve: x^2+7x+2=0 My answer: x= (-7 +/- sqrt (41))/(2) good one jasmine

### Math

*CORRECTION* I am supposed to find the 4 vertices of the ellipse 1=(((x+1)^2)/4)+(((y-4)^2)/9) How would I go about doing that?

### writing

Still, do-it-yourself renovations is usually a source of pride for new homeowners, no matter how hard or how frustrating. what correction should be made to this sentence? 1)remove the comma after still 2)change is to are 3) change the spelling of usually to usualy 4)remove the...

### Calculus

An airplane is heading at a bearing of N23°E at a speed of 700 km/hr, but there is a wind blowing from the west at 60 km/hr. If the plane does not make any correction, what will be the bearing of the plane? What is its speed relative to the ground (ground speed = airspeed + ...

### math, correction

Graph each of the following equation, using the intercept method. 2x + 3y = 6 so the solutions are (0,2) and (3,0) yes.

### math,correction,algebra

is this correct: rewrite the equation 4x-10y = 11 as a function of x. My answer: f(x) = 0.4x-1.1 ok

### Math Vocab

I am doing vocabulary for math and one of the words are negative correction. I search all over the place and didn't find a definition for that word. Help please.

### math, correction

am i also correct for this one. directions: list all the factors of 45. my answer: 1,3,5,9,15,45 yes

### Chemistry- Dr.Bob

What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? The explanation from bobpursly was this The sum of heats gained =0 80(cice)(0+15)+80Hf+80cw(...

### writing skills

Sentence 12: In short, the best predictor of a happy marriage may simply be this: that the man and woman are able to communicate openly and productively before the marriage even takes place. What correction should be made to this sentence? 1. remove the comma after short 2. ...

### math,correction

Is this correct -2.75 would be in fraction: -2 and (3)/(4) Well actually just -2 3/4 You don't need the word "and" unless spoken.

### writing skills

Sentence 2:Lets say that two drivers are involved in an auto accident, and one is injured. What correction should be made to this sentence? 1. change lets to let's 2. insert a comma after say 3. remove the comma after accident 4. remove the comma after insurance 5. no ...

### Juvenile Justice Procedure

Locate three separate corrections programs and detention facilities in the Virgin Islands designed for juveniles in gangs. Make sure you have selected one detention facility and one correction program. Your third selection can be of either genre. • Write a summary describing...

do you mean like this: 720/(V-30) + 720/(V+30) = 10 Get a common denominator of (v-30)(v+30) then multiplying both sides by that, then (v-30)(v+30)X 720(V+30) + (v-30)(v+30) X 720(V-30)=(v-30)(v+30)X 10(v-30)(v+30) then multily out, and solve for v. 720(v-30)+720(v+30)=10 720v...

### math

correction: use the unit circle to fin the ecaxtvalue for all trig functions theta=2pi/3

### writing

Sentence 1: I am writing in reply to your advertisement in the Elkhart Sun for a sails representative. Which correction should be made to sentence 1? 1. Replace to with too 2. Replace sails with sales 3. Insert a comma after advertisement 4. Insert a comma after for 5. No ...

### Chemistry

What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I don't understand the set up. The setup is like this (answered by bobpursly): The sum of ...

### Chemistry

Standard entropies for substances are defined at a pressure of exactly 1 bar or exactly 1 atm in different books. For gases, this correction factor would be..... in J/molK? Answer is in format 0.xxxxxx I'm a little confused... I'd appreciate any help. 1 atm= 1.013 25 bar or 1 ...

### chemistry

Lab on Determining hard water Not sure if I answered this currently, not completely sure how to explain either. If a student has a non-zero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated [EDTA] be correct, too ...

### chemistry

Lab on Determining hard water Not sure if I answered this currently, not completely sure how to explain either. If a student has a non-zero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated [EDTA] be correct, too ...

### English

I'm reposting you a few sentences I checked myself again, because you told me they were too wordy. Could you please have a look at them? Thank you 1)A ghost appears to Hamlet and asks him to take revenge and kill his murderer, Claudius. 1) Correction: A ghost appears to Hamlet...

### bobpursly & countiblis,math

I thought that we can solve anything with equations is it always polynomials. Isn't this the same thing as finding the unknown for an equation. As i said in my previous message or am i wrong. Also what about the rational expressions what are some challenges about working with ...

### math,correction

Problem states. which of the ordered pairs (0,0), (-2,10),(-1,-5),(-3,9) are solutions for the equation y=5x? my answer: all first three except the last pair. so yes to (0,0), (-2,10),(-1,-5) You are correct on (0,0) and (-1,-5). You are incorrect on (-2,10). y = 5x = -10 (not...

### math,correction

is this correct? factor completely: 9x^2-4 my answer: x is approx. +/- ((sqrt (14)/(3)) nope (3x-2)(3x+2) nope (3x-2)(3x+2)

### English

I tried to do some of the corrections myself. I think some changes must still be made. Thank you very much. 1)A ghost appears to Hamlet and asks him to take revenge and kill his murderer, Claudius. 1) Correction: A ghost appears to Hamlet and asks him to avenge his murder by ...

### math,correction

can someone correct this for me. 7(x –3) > 5x - 14 7x –21 > 5x –14 -5x -5x 1x –21 > -14 +21 +21 1x > 7 1x / 1 > 7 / 1 x > 7 the line has an open circle right on number 7 with an arrow going to the positive side. No. WHen you subtraced 5x from 7x, you ...

### math,correction

can someone correct this for me please. Directions: Evaluate each function for the value specified. f (x)=x^2+7c+10, f (-2) so then this is what i did: f(-2)=-2^2-7(-2)+10 = 4+14+10 = 28 so then that means that f(-2) = 28 sorry the formula should read. f(x)=x^2+7x+10 i need to...

### MATH,correction

IS THIS CORRECT NOW. solve by using the quadratic formula. x^2 = -5-5 My answer: x = (-5 +- SQRT (5))/(2) I don't see any x term, so b is zero. sorry it suppost to read that first -5x-5

drwl,thanks so much for your help. You are right I do not understand the method that you used. I was trying to do it the way you described before giving me the answer and it was not working.

### math,correction

Graph each of the following equations by first solving for y. 2x – 3y = 12 so it would be: y = 2/3x – 4 and the solutions points would be: So (-3,-6) is a solution

### math,correction

Find the y-intercept of -x - 9y= 9 so this is what i did: -9y = +x +9 i divided both sides by -9 y=(-(1)/(9)x-1 now from here i don't know what to do? y=-1/9 x -1 Yintercept is when x=0 so this is what i get: y=(-(1)/(9)x-1 y= (1(1)/(9)(0)-1 y= -1 so the y intercept is -1 good

### math,correction

I have to determine which two equations represent parallel lines. equations are (a) y=(-4)x+2 (b) y=(4)x+2 (c) y= (1/2)x +2 (d) y=(-4)x+3 so the answer would be: A and D yes

### math,correction

i have to simplify (a^7b^2)^7 so this is what i ended up with: a^49b^14 should i reduce it more or its fine like this? It is fine.

### writing

In the past, the United Stated Public Health Service and state and local health departments dominate the fields. What correction should be made to this sentence? 1) insert comma after Service 2) change state and local to State and Local 3) insert comma after departments 4) ...

### bobpursley, math,correction

Let n be a postive integer, then n+1 is the next integer. sum the squares of those noumbers: n^2 + n^2 + 2n +1=85 solve for n. so this is what i did. n^2+2n+1=85 n^2+2n=85-1 n^2+2n=84 n=7056+4n

### math

Given that h(x)=x+1/x-2 and g(x) =4-x. Find h(g)(x) and find g(h)(x). P.S. Thanks for the correction Steve.

### English

Thank you very much for your corrections! Here are some more sentences I need you to revise. 1)There is the appearance of a ghost which urges the hero to commit the revenge. (Correction: to avenge, get/have/take revenge on Claudius/to seek revenge for his own murder). 2)A ...

### Math, correction

the directions are perform the indicated divisions. so the problem is: (x^2-2x-35)/(x+5) so these are the steps i took: (-36x^3)/(6x)= so my answer was: -6x^2 Nope. Factor the numerator, one of the factors will be x+5, which will divide out.

### English

I forgot to include the following statements. Thank you. 1) You are fast like a lighning. Better: You are as fast as lightning. 2)Is it possible to write: "I didn't correct this paragraph because it was your first draft. You re-wrote it neatly (?) on your foolscap paper. (See ...

### English

In your previous post you wrote "time is perceived as subjective" so I won't evaluate it as a mistake. What do you think? I still have two more doubts. 1) The character's thougts flow freely without any temporal structures. (correction: .... freely in time). It lacks any ...

### math,correction

can someone correct this for me please. Directions: Solve the following system by substitution. 5x-2y=-5 y-5x-3 what i received as the solution are : x = - (1)/(5) and y = 2 which it would look like: (-(1)/(5) , 2) correct.

### correction of math

rewrite the equation 2x-3y= -6 as a function of x. My answer. f (x) = (2)/(3) x + 2 No. 2x=3y - 6 divide by two. x=3/2 y -2 hold on i was looking it over. wouldn't it be: 2x-3y=-6 would actually be: -3y=-2x-6 y= 2/3x+2 because you said that it would be x=3/2y-2 but how can ...

Sorry I forgot to give directions for each problem. The lines represent that the numbers are fractions. Thank you. Multiply ã7/ã8 ~ ã24/ã49 = Divide ã45/ã81 = Simplify 7ã3/ã5 =

correction: Doug spent \$90 over the week end. He spent 1/4 of it on a CD and 1/5 on movie ticket. how much money did he have at the start of the weekend?

### algebra - correction of previously submitted. Is t

4t^2/5=t/5+3/10 = t=3/4, t=-1/2

What is the error and what is the correction? -1/4 / 3/2 = -4/1 x 3/2 = -12/2 = -6

### math,correction

can someone correct me: i have to graph i have the inequalities: 3x -6y = 9 x -2y = 3 what i have is the points to plot if my y = -3/2 and my x = 0 therefore: (0,-1.5) and (0,0) No. If y=0, then x=3 . Check that.

### bobpursly,

Is this correct now after i revised it Multiply. 3xy^2(5xy-4x+6y) 3xy^2(5xy)=15x^2y^3 3xy^2(-4x)=-12x^2y^2 3xy^2(6y)=18xy^3 so i get from this 15x^2y^3-12x^2y^2+18xy^3 correct awsome i just thought that the 15x^2y^3-12x^2y^2 should be combine...

I missed these questions on homework about adjectives. Can you double check my corrections? Directions: 1. tell what is the adjective 2. what noun or pronoun it's describing Sentences: 1. Rhode Island is a small state. My orig ans: 1. small, 2. Rhode Island Correction: 1. ...

### english

Sentence Correction and Changes in Writing

### algebra

what is the error in finding the sum? 3/10 + (-1/10) = 3+1/10 = 4/10 = 2/5 what is the correction?

### algebra

what is the error and the correction in finding the difference? 3/4 - 9/2 = 3-9 (4-2) = -6 / 2 = -3

### math,correction

the problem is: 4x+y>=4 so after solving for the equation line formula y=mx+b I got : y>= -4x+4 the points to plot was: (-1,8),(0,4),(1,0),(2,-4) and the line will be solid and the shading for solution would be on top going in that-------> direction.

### math,algebra,correction

Is this correct: solve using the quadratic equation: 5x^-4x+1=0 My answer: x= (2)/(5) +/- (1)/(5)i Or should i combine the denominators to look like this: x= (2+/-1)/(5) i I don't like where you show the i I would write the solution as (2 +-i)/5 or 2/5 +-i/5

### Math (repost)

In standard form, find the equation of the circle that passes through the origin and x-intercept 1 and y-intercept 2. (I fixed a correction a little too late after a response.) Help please? thanks!

### English

Thank you very much for your last corrections. Can you check these sentences, too? Thank you very much in advance. 1)Th urban population was affected by serious diseases such as smallpox nd typhus. 2)The majority of children died before the age of five (before they reached the...

### math,correction

Solve each of the following equations for x. Problem#1 (x)/(6) - (x)/(8) MY answer: x = 24 Problem #2 (x)/(x-2) - (x+1)/(x) = (8)/(x^2-2x) My answer is: 6 = x or x = 6 right on the first one. check your math on the second one. i've done it twice and both times got (-10).