# Reiny (this was the one you helped me with)

61,213 results

### To: Reiny

Please help me on my question, no one helped me...

### Algebra 2 to Reiny

in the one you helped me with, where did this come from: Where did this part come from? - (sin^2Ø + cos^2Ø)

### MATHS REINY

You had helped me with a similar question. This one says : A whole seller supplies 90 books while he was ordered to send 80 books by a retailer. If 15%trade discount was given, what was the net discount to the retailer? I solved this one in the similar way to the one you ...

### maths reiny help!!

You had helped me with a similar question. This one says : A whole seller supplies 90 books while he was ordered to send 80 books by a retailer. If 15%trade discount was given, what was the net discount to the retailer? I solved this one in the similar way to the one you ...

### Pre-Calculus - Reiny

Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on paint and uploaded ...

### Thank you Jiskha and Reiny

I just wanted to write a post to thank everyone who helps out. I haven't found people to be very grateful on this site so I thought i'd take a moment to tell you how awesome you guys are. Special thanks to Reiny for all the helpful math tips. You have helped me through a lot ...

### Trig

#1 (1/sinx)(sin^2x + cos^2x(sinx/cosx) )/(sinx + cosx) = (sinx + cosx)/(sinx+cosx) = 1 Reiny helped with this question but I don't how Reiny did it. Please explain

### To Reiny

Reiny could you please check my Calculus post below, it says Calculus--Reiny.

### Happy mother's day

To Ms Sue and Ms Reiny, who have helped me with homework questions in the past Happy mother's day. To all the other tutor's who are also mother's that have not helped me yet, happy mother's day to you too. Enjoy!

### to REINY

you have been of much help tonight, I truly appreciate that. I can also, honestly, say that I can retrace my steps and explain how I arrived at the answer after your detailed explanations. Thank you very much. Hope to one day help someone as you have helped me (maybe in ...

### English

1. I have helped an old man to cross the street on a crosswalk. 2. I have helped a foreigner to find a post office. 3. I have helped a missing child to go back to his home. 4. I have helped an old lady to carry things. 5. I have helped a man to take a highway. 6. I have helped...

### Math (Reiny??)

Mrs. Reiny ... As in Harris County Mrs. Reiny?

### college algebra--Please help Reiny please

You helped me with this question and this is what I got but my Professor says that each x and y intercept needs to have a coordinate. Where did I go wrong?? Can you help me? x^2+y^2+4x+2y-20=0 x^2+4x+4+y^2-2y+1=20+4+1 (x+2)^2+(y+1)^2=25--this is where you helped me. Then I ...

### English

1. I have helped an elementary school student to cross a street. 2. I have helped an old man to find a drug store. 3. I have helped an old lady to find her daughter's apartment. 4. I have helped a blind man to buy things at a supermarket. 5. I have helped a drowning boy to ...

### Math Reiny question

This is the problem you helped me with. I was curious, do I write the solution set as (1 + i3ã3)/2, (1-i3ã3)/2 change it to the standard form first x^2 - x + 7 = 0 a=1, b=-1, c = 7 x = (1 } ã(1 - 4(1)(7))/2 = (1 } ã-27)/2 Your answer is an imaginary number or ...

### Math clarification Reiny

This is the problem you helped me with. I was curious, do I write the solution set as (1 + i3ã3)/2, (1-i3ã3)/2 change it to the standard form first x^2 - x + 7 = 0 a=1, b=-1, c = 7 x = (1 } ã(1 - 4(1)(7))/2 = (1 } ã-27)/2 Your answer is an imaginary number or ...

### English

1. I have helped an old lady carry a big bag. 2. I have helped an elderly person cross a street. 3. I helped a foreigner find a subway station. 4. I have helped an Englishman go to a police station. 5. I have helped a stranger find a bookstore. 6. I have helped a Japanese find...

### Reiny+ In need of help

Hey Reiny, could you please take a look at my expo growth and decay post? Thanks alot.

### Reiny

Reiny I think I have found out the rectangle problem. Could you check and see if Ive got it correct?

### Reiny! Reiny! Reiny!

1. Oanh walked from her home to the grocery store at 3 mi/h and jogged home at 6 mi/h. Her total round trip was 15 minutes (1/4h). How far from Oanh's home is the grocery store? (use an equation to solve this) Help, I am totally clueless on this.

### reiny

reiny why are you so smart thanks for aswering my question

### reiny

How do I find a variance for a set of numbers {1,16,8,17,12} I got that variance-34.2, but I'm unsure. Any help? Thanks. math - Reiny, Sunday, January 24, 2010 at 8:16pm look at his page. Reiny - April, Sunday, January 24, 2010 at 8:25pm I looked at that page and did my ...

### sir steve help me reiny reiny

2) A quality of identical plastic books weigh 10.98kg ,if each book weighs 54.9g .How many books are there

### TO REINY

Hi reiny i just wanna say thank you for always answering my questions thanks for always helping me <3 thank you may god bless you

### reiny

thanks reiny--but i'm in 6th gr and we r not studying powers..can you help me with a simpler answer without powers?

### Math

To Reiny: Hi, thank you for your time Reiny and your info. I am so sorry but on the first one I accidentally put 0 where I should have put =9. In other words, the first equation should have said (9n+1)squared =9. Really sorry to have taken up your time with the wrong equation...

### Calculus--Reiny

Calculus - Reiny, Friday, December 23, 2011 at 6:59pm I read that as (4a^2-1)/(4a^2-16) * (2-a)/(2a-1) , my brackets are necessary = (2a+1)(2a-1)/( 4(a+2)(a-2) * (2-a)/(2a-1) the (2-a)/(a-2) are opposite, they will give you the -1 so.. = -(2a+1)/(4(a+2)) , again you have to ...

### trigonometry

Find the distance using the appropriate arch length. A television tower 520m high subtends an angle of 2deg30'. How far away is the tower? some people that helped me alot were Reiny, Damon, bobpursley, and drwls..so i just wanna say thnks to you guys...are u guys math expersts...

### series maths steve reiny bob reiny steve!!!

if p is the nth term 8+20+52+.....+p evaluate the sum to n-of the series plz show step

### Algebra-Reiny please explain this

Hi Reiny, I posted this problem earlier and you responded but I don't get the reasoning- The problem was -2log8(x+1) = -8 you said multiply by -2 and then you put log8(x+1)=4(wasn't that dividing by -2) log8(x+1)^2 = 8 (how did you get to the power of 2 and =4 became =8 x+1 = ...

### Urgent math question for Reiny

Find the value of the expression below for r=4 and t=2.... t^3-r+20 divided by r 9*** 72 6 40 Ok, Reiny you said my answer9 was originally wrong, however when I looked at the work you did and you put in parenthesis()....my question is why, because the original expression didn'...

### to reiny

Reiny i got (x+5)(x-3) x=-5 or x=3

### Math thanks, Reiny

Thanks Reiny!

### English

1. I like taking walks. 2. I like taking a walk. (Which one is OK? Are both right?) 3. You should obey the school rules. 4. You should keep the school rules. 5. You should follow the school rules. (Are all the same?) 6. He helped Mother who was sick in bed. 7. He helped to ...

### Reiny! Reiny! Reiny! Answer Check and HW Help!

Translate to a system of equations and solve: 1) The sum of two numbers is 36. One number is 2 more than the other. Find the numbers. Answer: (17,19) 2) Find two numbers whose sum is 66 and whose difference is 18. Answer: (37,29) These ones I am not sure of: 3) The difference ...

### Reiny (this was the one you helped me with)

I tried to explain it by using the arrangement of billiard balls, but I guess you don't play pool. let me try to "draw" the billiard balls . . .o . . o o . .o o o . o o o o o o o o o o sum of one row = 1 sum of two rows = 3 sum of three rows = 6 sum of four rows = 10 sum of ...

### URGENT~MATH For Steve or Reiny

For questions 5-7, find the solution to the system of equations by using either graphing or substitution. 5)y=6-x and y=x-2 (1point) (2,4) (-4,2) (4,2) no solutions 6)y=2x-1 and y=x+3 (1point) (4,7) (7,4) (-7,-4) no solutions 7) y=4x and y+x=5 (1point) (-4,1) (1,4) (-3,2) (2,3...

### Maths - Reiny

Show that the equation 3x^2 - x^3 + 3 = 0 can be rearranged to give: x = 3 + 3 ---- x^2 x^3 = Divide by ? = x = 3 + 3 ---- x^2 Using Xn+1 = 3 + 3 with x0 = 3.2 ---- x^2n find the values of x1 x2 and x3? What to the values of x1 x2 and x3 represent? The represent estimates of a...

### maths steve reiny bob reiny!!! Help

If line 2x+y=-3 and x-2y=1 form the sides of a rectangle whose other sides meet at the point (3, 4), find the equations of the other sides and the area of the rectangle plz help show solution step

### English

1. We helped ourselves to all the food. (What is the meaning of 'helped' in this sentence?)

### science plz help fast

how do mutualism and parasitism compare ? 1.)at least one organism is helped in both cases 2.)at least one organism is armed in both cases 3.)organisms are only harmed in both cases 4.)organism are only helped in one while organism are only harmed in the other

### TO REINY

Thank you Reiny, Why I have to divide 632/1.05? I was dividing 632/0.05, I need to understand for future similar problems, I really appreciate your help, I finished school almost 30 years ago, I decided to go back to school an obtain a degree, I try my best but so many years ...

### hello reiny damon steve can you help me physics

Find the Gravitational potential at a point on the earth's surface. Take mass of earth as 5.98*10^24kg, it's radius as 6.38*10^6m and G=6.67*10^-11Nm^2kg^-2. Plz i need sir damon and steve including reiny to show me step and solution plz

### Calc I (@Reiny)

y = x^3 - 8x^2 + 6x -2 has a slope of 6 at two points, what are the coordinates? I used Reiny's way to help solve this answer. Please check if I've done it correct: y'= 3x^2-16x+6 3x^2-16x+6=6 3x^2-16x=0 x(3x-16)=0 Solve for x's x=0 3x-16=0 ~> x=16/3 Plug x values to ...

### Calc I (@Reiny)

y = x^3 - 8x^2 + 6x -2 has a slope of 6 at two points, what are the coordinates? I used Reiny's way to help solve this answer. Please check if I've done it correct: y'= 3x^2-16x+6 3x^2-16x+6=6 3x^2-16x=0 x(3x-16)=0 Solve for x's x=0 3x-16=0 ~> x=16/3 Plug x values to ...

### Math: Reiny

I already posted this question, and Reiny had a question about the question. How many square units are in the region satisfying the inequalities y>=(x) and y<=-(x)+3? Express your answer as a decimal. * the () are absolute value signs. •Math - Reiny, Wednesday, ...

### steve reiny reiny damon probability

buses arrive at the bus stop at 15min interval starting from 7am in the morning. If a passenger arrived at the bus-stop at a time that is uniformly distributed between 7 and 7:30am. what is the probability that the passenger waits less than 5minutes for a bus

### math

how I change 28/9 to a mixed or whole number divide 28 by 9 to give you 3 with a remainder of 1. so 28/9 = 3 1/9 (three and one ninth) Thank you Reiny

### reiny steve reiny damon!!! Damon help maths

If P(x) and Q(x) have a common factor (x- h),prove that (x-h) is also a factor of P(x)- Q (x).find the possible common factors when P (x)=ax^3 + x^2 - 15x - 18 and Q(x)= ax^3 - 14x - 12.also find the corresponding value of a. Plz show me step of work

### cynthiavariation 2(steve,reiny,reed)pls I need help!

yea! D question was d one u asked me 2 put d first height!

### English

I helped my mother wash the dishes. I helped my mother clean the house. I helped my mother ironing some clothes. I vacuumed the floor. I cleaned the floor with a mop. I cleaned the study which was messy. I cleaned the veranda where there were a lot of items such as books, ...

### Reiny or Damon or Bobpursley

Express the series 11 + 18 + 27 +...+ 171 using sigma notation. Usually you would take 27-18 and that's the step between numbers, right? (I think its the k-value?) But 27-18=9 and 18-11=7. Are we stepping by k+2 here? Like k, k+2 k+4, k+6...? Please help me. I'm not confident ...

### Pre-Algebra [repost for Reiny]

In my last post for #1, I asked my teacher and she said that it's actually k=30 . Could you have gone wrong somewhere? That's the only one. -MC

### History

4.)Which answer best explains how folklore was important for enslaved families? (6 points) A.)It helped enslaved parents teach their children how to survive.*** B.)It helped enslaved families learn to read and write without help. C.)It helped enslaved children feel like part ...

### Math( Attn: Reiny)

1. A rental business charges $12 per canoe and averages 36 rentals a day. For every 50-cent increase in rental price, it will lose two rentals a day. What price would yield the maximun revenue? I was told the answer by Reiny, but I couldn't get the right answer. I found the ...

### DEAR REINY

dear reiny i am sim who posted 4 questions this morning i am in dubai and my final examinations are after 13 days and by the way those questions were not my homework or assignment those were some sums which we get on our school website and i had a doubt in those questions but ...

### German help - Reiny

#3 was supposed to be.... Mutters und Vaters Kinder sind A. meine Cousins B. mein Geschwister C. meine Schüler. D. meine Geschwister.***** This is the one I typed wrong last night - sorry about that...not sure on this one but I chose D....? Thanks for your help

### Algebra

I already posted this question and Reiny answered it, I just wanted to clarify my answer Problem: If f(x) is a polynomial of degree 4, and g(x) is a polynomial of degree 2, then what is the degree of polynomial f(x)-g(x)? Reiny: so f(x) has to contain an x^4 term and g(x) does...

### math/science

thanks any one that helped!!!

### MATH (to Reiny)

I tried to simplify it with the second fraction by multiplying the top and bottom by "r" and i didn't work. Well at least I don't understand how to get there. Can you please just explain how... n!r/(n-r-1)!(r-1)!r goes to n!r/(n-r+1)!r! I get one put of it, that r x (r-1)! = r...

### English

1. Mother Teresa helped many people in India. (In this sentence, what is the part of speech of 'in India?' Is it an adverbial phrase modifying 'helped' or is it an adjective phrase which modifies 'people?') 2. You watched The Matrix yesterday. 3. You watched the Matrix ...

### 7th grade-Algebra Worth Problem

Please show equation and solve for the following 1. Lyn's age is 8 years less than 15 times the age of her niece Elizabeth. If the sum of their ages is 24, what is Elizabeth's age ( Let e= Elizabeth's age) 2. Bob is renting a canoe for $20, plus $9.75 per day. How mant days ...

### Algebra II

I solved one of these sigma notations and had Reiny check it in an earlier post but this one totally befuddles me- Which of the following terms would not be in the series generated by the expression: 5 Signma symbol (k^2-5k+2) k=2 the choices are 2, -2, 4 or -4If you could ...

### Reiny Or Damon?

Thanks for reading this! A triangular prism has vertices at A(2,-1,-1) B(2,1,4) C(2,2,-1) D(-1,-1,-1) E(-1,1,4), and F(-1,2,-1)? This question has two parts: 1 - Which image point has the coordinates (-3,2,1) after a translation using the vector <-5,1,3> I'm thinking it'...

### Reiny Damon Bobpursley?

Thanks for reading this! A triangular prism has vertices at A(2,-1,-1) B(2,1,4) C(2,2,-1) D(-1,-1,-1) E(-1,1,4), and F(-1,2,-1)? This question has two parts: 1 - Which image point has the coordinates (-3,2,1) after a translation using the vector <-5,1,3> I'm thinking it'...

### Writeacher

Thank you soooo much. you have helped me so much since yesterday, i really appreciate it especially since you helped me removew my doubtings. Again thank you.

### Congrats!

Thank you to all the tutors that have helped me so many times- Ms. Sue, Writeteacher, Damon, etc. All of you guys have helped me so much! Thank you! Yours Truly: Naomi

### Trig.......

I need to prove that the following is true. Thanks (2tanx /1-tan^x)+(1/2cos^2x-1)= (cosx+sinx)/(cosx - sinx) and thanks ........... check your typing. I tried 30º, the two sides are not equal, they differ by 1 oh , thank you Mr Reiny I'll tell my teacher this Question is ...

### Pre Calc (For Reiny)

Thanks so much your method worked perfectly! My solution was: the remaining zeros were 5+2i, 3, and -4 I have one question that's bugging me though, why is it that synthetic division did not work for me? I thought that long division and synthetic division were both ...

### world history

What helped unite Charlemagne's empire? answer A strong efficient government helped unite Charlemangne's empire

### Social Studies

In what ways has America’s geography helped to bring Americans together? In what ways has it helped to separate Americans?

### social studies

Sorry to keep posting, I thought I had this one figured out, however it is the last one that I have. She helped to end the Bourbon Triumvirate and pushed for Women Rights Hints - 13 letters - ends with an t _ n

### math

Posted by connie on Monday, July 20, 2009 at 11:56pm. Find the indicated outputs for f(x) = 2x²-4x f(0)= ____? f(-1) =____? f(2) =____? Responses math - Reiny, Tuesday, July 21, 2009 at 8:00am f(0) = 2(0)^2 - 4(0) = 0*0 = 0 f(-1) = 2(-1)^2 - 4(-1) = 2(1) + 4 = 2 + 4 = 6 now ...

### to Reiny

-5 = x - 3ã(x+4) 3ã(x+4) = x+5 square both sides 9(x+4) = x^2 + 10x + 25 x^2 + x - 11 = 0 solving this by the quadratic formula gave me x = (-1 }ã45)/2 or appr. 2.854 or -3.854 how did u go from line one to line 2

### Algebra

Hello....I was helped on this question earlier, but I don't understand why we divide by 2? Please help, please see the below: The president will order 5 turkey sandwich combos and 7 steak lunches and spends $124.00. The other president will get 10 turkey combos and 5 steak ...

### English

How about making pasta? 1. Well, with your help, I can do that. 2. Well, if you help me, I can do that. (Are both the same?) 3. With your help, I could do that. 4. If you helped me, I could do that. (Are both the same?) 5. With your help, I could have done that. 6. If you had ...

### English

Becca was helped/helping Corky with his homework last night. Answer: helped Blossom watched/watching her best friend study for the test. Answer: watching Plz check my answer. Thank you!

### help me!

In what ways has America’s geography helped to bring Americans together? In what ways has it helped to separate Americans?

### steve reiny proportion help maths reiny!!!

The illumination of a small object by a lamp varies directly as the candle-power of the lamp and inversely as the square of the distance between the lamp and the object.If a light-bulb of 8 candle power,fixed 150cm above a table,is replaced by a 5 candle power bulb,how far ...

### Social studies

1.What was the most important factor leading to the end of the Cold War? a)The European Economic Community formed b)Democratic revolutions began in Eastern Europe c)The Marshall Plan helped rebuild Western Europe d)a U.S.-soviet peace treaty helped repair relations.***

### To All Students & Tutors

I will not be able to answer any questions on this board for the next 8 days or so. I will be warming my weary bones down south off one of the islands of Belize for a while. Great time to get away as the temperature up my way is currently at -12 C. Reiny

### ELA

The meaning of this sentence can be improved by adding which phrase to the end of (20)? (19)Sometimes, the Coffins helped the travelers disguise themselves by putting on elegant clothing.(20)Other people helped. A.by staying away B.by doing useful things C.from time to time D....

### English

Where does the apostrophe go or is one needed? This parks rules were hard to understand? The rangers instructions helped.

### Social Studies

What characteristic did the Mauryan and Mughal empires share? -Both helped spread Buddhism -Both helped spread Islam -Both embraced the idea of religious tolerance -Both were begun by Aryan people

### math

collected for use in the approval process required by the U.S. Food and Drug Administration (FDA). Some participants were given a placebo, an inert substance that looks like the drug; others were given the drug. The data are shown in the following table: No Help Help Drug 22 ...

### math

collected for use in the approval process required by the U.S. Food and Drug Administration (FDA). Some participants were given a placebo, an inert substance that looks like the drug; others were given the drug. The data are shown in the following table: No Help Help Drug 22 ...

### Math

Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 5% per annum compounded monthly, how much does she need now to guarantee herself $900 every month for the next 25 years? math - Reiny, Friday, April 3, 2015 at 3:05pm Present Value = 900(1 - 1.0041666...

### Social Studies

What characteristic did the Mauryan and Mughal empires share? a.Both helped spread Buddhism. b.Both helped spread Islam. c.Both embraced the idea of religious tolerance. d.Both were begun by Aryan people I think either a or d Help?

### None of my questions are being answered

I need serious help for the questions i put on here and no one is helping me? ive tried using different names, subjects and said please and thank you and no one has yet helped me. I'm not impressed by this. Thanks but no thanks for the help. Jake/cabe/eliza

### English 8th grade

Both "Forest Fire" and "Why Leaves Turn Color in the Fall" present factual information. Write an essay of your own about one of those essays. In your essay, tell whether the author provided enough information for you to understand the topic fully. Then discuss how the method ...

### Math

In the tests of a new pharmaceutical product, data was collected for use in the approval process requied by the U.S. FDA. Some participants were given a placebo, an inert substance that looks like the drug; others were given the drug. The data is shown: No Help Help Drug 22 47...

### Geography (Ms. Sue)

1). What helped the economy of the West to grow? My answer: The West's growth in the 20th century was helped by air conditioning and by irrigation. I am aware that you have already explained that my answer was correct, yet incomplete. However, in what manner is it? Should I ...

### ELA

Which of the following is the best way to rewrite this? F.Sometimes the Coffins helped disguise themselves by putting elegant clothing on the travelers. G.The Coffins sometimes helped themselves by disguising the travelers in elegant clothing. H.Sometimes the Coffins helped ...

### SS

What changes did the Aryan migration bring to India? (1 point) The Aryans brought Islam to the region of South Asia. The Aryans developed the Mughal Empire. The Aryans established the caste system and helped develop Hinduism. The Aryans helped spread Buddhism throughout the ...

### biology

can you give examples of analogous structures????? please i have tried about 4 differet websites and no one has helped

### probability

Reiny, thanks!

### ThankYou Reiny!!!

Thank you!

### Maths

Thanks Mr Reiny

### Algebra 1 (Reiny)

1. t^-6 for t = 2 A: 1/64?