Tuesday
July 22, 2014

Posts by Anna


Total # Posts: 1,925

Math (expected value)
A roulette wheel in Las Vegas has 18 red slots and 18 black slots numbered alternately with the numbers 1 through 36. Two green slots are numbered 0 and 00. The winning number is determined by the slot into which a single marble rolls. Players are not allowed to bet on green. ...

algebra
I am gathering there is no solution because in the second equation it would not be 2 it would be -2...am I right?

algebra
I am to solve this system of equations x+3y=8 x=4-3y I got (2,2), but I am not sure if this is righ, can you help me?

Math
A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using the quadratic formula

algebra
You cannot do that on a system of equations like this

algebra
Helpme solve this please i am really stuck x+3y=8 x=4-3y

algebra
Oh my gosh I completely missed that, thank you.

Math
I need to know the standard deviation and how to get it for the following set of numbers. {10, 11, 10, 12, 11, 10, 11, 11, 12, 13, 11, 10, 14}

Math
If each score in a set of test scores is divided by 10, describe the effect of the division on the mean, median, mode, range, and standard deviation of the set.

Math
{-1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, 1, 1, -2} I need to find the standard deviation of this set of numbers please help!!!

Math
Give the equation of a line perpendicular to the line y = -8x + 8 having the y-intercept 2 units below the y-intercept of the given equation. At what point the two equations cross each other?

Math
Give the equation of the line that passes through point (1, 2) and is parallel to the line y + 6x -7 = 0. I have a really have issues trying to figure these out so if I could get a step by step break down on how to solve this it would be great.

French
thanks Sra

French
1.Est-ce que tu travailles dans une boutique, un magasin ou un grand magasin? 1.Je ne travaille pas n'importe où pour le moment. 2.Est-ce que tu aimes acheter des vêtements? 2.Oui, j'aime acheter des vêtements. 3.Qu'est-ce que tu cherches quand ...

French
1.Est-ce que tu travailles dans une boutique, un magasin ou un grand magasin? 1.Je ne travaille pas n'importe où pour le moment. 2.Est-ce que tu aimes acheter des vêtements? 2.Oui, j'aime acheter des vêtements. 3.Qu'est-ce que tu cherches quand t...

French
yeah, thanks!

French
Original Poem-Formula Poetry line one = a noun line two = 2 adjs. that describe the noun line three = a sentence describing noun. line four = another word that has the same meaning as noun. Could I have an example on this please.

probability
A survey of 850 students conducted in two schools showed the following results: School A: *Students who took the bus = 400 * Students who did not take the bus = 150 Total = 550 School B: *Students who took the bus = 200 * Students who did not take the bus = 100 Total = 300 Sch...

Probability
Thank you so much! :)

Probability
In how many different ways can the letters of the word SANTACLAUS be arranged?

trig
how do i find cosX if i am given sin x= -4/5 and tan <o???

MATH (expansion)
Which of the following represents the fourth term of the expansion (6x^3+(1/2)y)^6?

Probability
A school has 8 math teachers, 6 English teachers, and 2 geography teachers. From this group, a 5 teacher committee is required. Calculate the number of ways that this committee can be formed if at least one geography teachers must be on the committee.

Probability
Two soccer players have one penalty kick each. The probability of each player scoring with a penalty kick is 0.2 and 0.3, respectively. What is the probability that at least one of them will score?

Probability
A game begins with two cards being dealt from a standard deck of 2 cards. To win this game, the next card must be the same as either of these first two cards, or fall between them. If the first two cards are a 4 and a 9, what is the probability of winning the game?

Probability
One of two cards is black on one side and white on the other side. The second card is black on both sides. One card is selected at random and the side facing up is black. What is the probability that the other side of the card is white?

Probability
What is the probability that you get at least one head in 4 tosses of a fair coin? 15/16, 3/4, 1/2, or 1/16?

probability
A fair die is thrown twice. What is the probability of obtaining two "sixes"? 1/36, 5/36, 5/6, or 1/6?

Probability
The probability of drawing a red Jack or red Queen from a standard deck of cards is...? 1/13, 12/13, 4/13, or 9/13?

probability
Oh. Alright. Thanks.

probability
Okay, for this one, I know it's either one of two answers. In how many different ways can 7 different people line up for a picture? 49, or 823543.

Math
(Both the 72 and 68 are subscript) 72 C 68 is: 1028790, 24690960, 12345480, or 514395?

Probability
How many different four-digit numbers can be formed using the digits 3,2,1, and 0? 9,18,24, or 36?

probability
A student has a choice of five different computers, three different monitors and seven different printers. How many different computer systems are possible? 15, 56, 105, or 128?

science
what are the components of electromagnectic field?

French-Sra
Au grand magasin -des chausettes violettes-3,81€ -des baskets rouges-30,49€ -un tee-shirt vert-9,15€ -un tee-shirt bleu-7,62€ -un jean bleu-30,34€ -un pull gris-18,14€ Total= 99, 55€ À la boutique -des chaussettes roses-6,86€ -des...

French-Sra
Sorry, I forgot to put the comparison in French. Here it is, please make any corrections. I've put stars beside the french comparisons. The baskets rouges in the Grand magasin are much lower in price than the baskets noires in the Boutique. *Les baskets rouges dans le Gran...

French-Sra
Thanks Sra for helping me with my post yesterday. I also think that question is asking me to only compare the price differences. I have done that below. The baskets rouges in the Grand magasin are much lower in price than the baskets noires in the Boutique. The chaussettes ros...

French
It's near the end of your trip to France. You decide to do some comparative clothes shopping before you spend the 100 euros you saved to buy clothes with. Your two favourite stores are a big department store and a small boutique. Compare the items that you see at eachs tor...

French/Spanish greetings
Joyeux Noël et meilleurs voeux pour une bonne et prospère année.

Seasons Greetings from Dr Russ
Merry christmas and happy holidays.

French
Thank you Kanon. I hope that you have a wonderful christmas.

French
Agree with what the French exchange student says about some of the people in your school. Use the indicated noun in each of your sentences. 1.Matt est timide.(un garçon) Oui, c'est un garçon timide! 2.Mrs. Johnson est bavarde.(un prof) Oui, c'est un prof ...

Math
. Give the equation of the line that passes through point (5, 1) and is parallel to the line y = 3x – 1. Please help, I am so confused.

Math
I really need help with this I do not know how to solve quadratic equations

Math
Solve the quadratic equation using any technique you wish. Name the technique. Check. 12x2 + 10x = 0

Math
The Maximum Garden Problem. A farmer has 230 ft of fence to enclose a rectangular garden. What is the largest garden area that can be enclosed with the 230 ft of fence?

Math
Okay that clears it up. Thank you very much for your help.

Math
I am still confused, I understand finding the difference and that being 0.65. What I am not sure about is where you wrote c(x)=mx+0.10. I know that the C stands for cost, should the x be a y? I know that m stands for slope but what is the 0.10? I really do not understand linea...

Math
The Juice Problem. A store sells a 1-liter container of juice for 75¢ and a 2-liter container for $1.40. Assume that the cost varies linearly with the number of liters, and find the slope of the line that shows the relationship. How many liters would be in a container tha...

MATH
Simplify p^(logp 12 - log p3) *The 'p's are subscript

Chemistry
Thanks

Chemistry
Can anyone explain this question to me? Which of MgCO3, NaOH and Mg(OH)2 can be used as an indicator of halide anions in solution. I don't understand what this means.

To-SraJMcGin(French)
I just read your previous post; okay I'll wait patiently till tom, thanks for all your help Sra, and I hope that you have a wonderful christmas.

To-SraJMcGin(French)
I posted my paragraph for you to check through once more, I made all corrections and even put it in english version, so that it's easier for you. Perhaps you never noticed it; I would really like to get it done by tom.

French-Sra
I'm sure that this paragraph is better than the last one. I did it in english version as well. Please make any corrections, and I'm sorry for having you check this again. I really appreciate all your effort and time Sra. Mon arbre de Noël de famille est dans ma gr...

To- SraJMcGin
Please make any corrections. I have fixed my mistakes. Mon arbre de Noel de ma famille est dans mon grand salon et il a des tonnes de cadeaux sous. J'ai contribue à décorer avec ma simple et les frères. Nous avons décoré notre Noel avec d...

To- SraJMcGin
I still have to make corrections for my paragraph, I have fixed some of it; for the second part just see if I have corrected this right. = et de le rendre encore magnifique

To- SraJMcGin
I tried to fix these sentences, please make any corrections. Nous avons décoré notre Noël avec de différents types d'ornements, tels que les anges, des bonhommes de neige, les flocons de neige, les étoiles, et ainsi de suite. Notre arbre de...

AP Physics B
how do yo find the spring constant?

French
For this sentence: peu bas minis et ainsi de suite-I was trying to say= little mini stockings and so on.

To- SraJMcGin & Mathmate
Thanks for all your help :)

French
I've been waiting quite a while, for a response. Creez un paragraphe d'au moins dix phrases qui dicrit le sapin de Noel de votre famille. Les phrases peuvent être au présent, mais vous recevrez des points bonus si vous essayez d'écrire quelques ...

French
Creez un paragraphe d'au moins dix phrases qui dicrit le sapin de Noel de votre famille. Les phrases peuvent être au présent, mais vous recevrez des points bonus si vous essayez d'écrire quelques phrases au future. Quand vous finissez vos phrases, v...

French
thank you

French
1.Avec qui fais-tu souvent les magasins? - Je fais souvent les magasins avec ma mère. 2.Où vas-tu pour acheter des vêtements? -J'acheter des vêtements from un centre commercial, un grand magasin, etc. 3.Est-ce que tu aimes acheter des vêteme...

French
thank you

French
Imagine that you work at a travel agency. Clients ask you what they should pack when planning a trip to certain French-speaking vacation spots during the winter and spring travel seasons. According to the weather report you recieve from each city's tourist bureau, select a...

Math
For which table(s) of values in Exercises 39–42 is the relationship linear? Tell how you decided. Write the equation for each linear relationship. x 5 10 15 20 25 30 y 20 30 40 50 50 50 I do not think that this is a linear equation but I cannot determine the pattern so th...

French
thanks Kanon;)le Mexique was used in the example in my book, sorry about that inconvenience

French
Tell where some of the friends are going choosing from the locations in the following list. -la boum de Marc -la boutique -le cinéma -l'école -le Mexique -le fast-food -les États-Unis 1.Béatrice et Éric vont danser samedi soir. =Ils vont ...

Math
When the graph of y=2^x is reflected in the x-axis, and then translated 5 units left and 1 unit down, the equation representing the new graph is: a) y=2^(-x+5)-1 b) y=2^(x+5)-1 c) y=2^(x-5)+1 d) y=2^(x+5)-1

French
En été la température moyenne dans ma région est de 25 degrés celsius. En hiver la température moyenne est de -10 dégres celsius. A'l'automne, la température typique est de 7 dégres celsius. Au printemps, l...

French
Your new pen pal from Guadeloupe is curious to find out if the seasons change where you live and what the weather is like. In a note to your pen pal, tell what the weather is like during the four seasons in your area. Give a typical temperature for each season using the celsiu...

French
thanks for the advice Writeacher

French
Thanks

French
Get to know your partner better by asking and answering questions. Student A asks questions using inversions. Student B asks using est-ce que. 1.avec qui/aller au cinéma Student A:Avec qui vas-tu au cinéma? Student B:Je vais au cinéma avec mes amis. Avec q...

French
thanks 4 ur help kanon

French
sorry, this is how #9 was supposed to be, I missed out a lot. 9.-Est-ce que ta famille voyage beaucoup? -Pardon? -Voyage ta famille beaucoup?

French
You're talking to your french pal on the phone. Unfortunately, you have a bad connection. Rephrase each question you ask using inversion. 1.-Est-ce que tu danses bien? -Pardon? =Danses-tu bien? 2.-Tes amis et toi, vous allez souvent en boîte? -Pardon? =Allez-vous ami...

French
thanks Sra, I value your help

French
My mistake, I forgot to add the question marks at the end while posting, so I'll correct that.

French
Pratique Find out if your friends are doing what you think they're doing by forming questions using inversion. 1.Valérie/finir les devoirs Valérie finit les devoirs. 2.Christophe/parler avec le prof Christophe parle-t-il avec le prof. 3.Fatima/travailler Fati...

French
thanks Kanon, you are really helpful

French
Est-ce que tu travailles après les cours? I want to know what type of work this question is referring to. A job? Homework? Homechores?

Probability
Find the probability of obtaining between 50 and 55 tails inclusive when a fair coin is flipped 80 times. (answer accurate to four decimal places.)

Probability
From a group of eight women and seven men, a committee of six is chosen randomly. Find the probability that three women and three men will be chosen.

Probability
The serial number on a $10 bill contains eight non-zero digits. If your $10 bill contains the digit 7 at least once, you win a prize. The probability that your $10 bill will be a prize-winning bill is what?

French
thank u Kanon, u were a lot of help

French
From the list of occupations, I picked my top 5 favourite, and they were, 1. journaliste 2. Professeur 3. Dentiste 4. Cuisinière 5. infirmière My next task is- For each of your top five career choices in Activity 9, determine what 3 classes in high school you mig...

earth science
What effects do convection currents have on the mantle and crust that would not happen if convection currents didn't exist?

HTT /200
a. List at least five federal agencies that might produce statistics or demographic data of interest to the hospitality industry. Describe the data that each agency provides and why it might be important to the hospitality industry.

Probability
The serial number on a $10 bill contains eight non-zero digits. If you $10 bill contains the digit 7 at least once, you win a prize. The probability that your $10 bill will be a prize-winning bill is?

math
Which numbers cannot be used in place of the variable in each rational expression. 2y+1/y^2-y-6

Probability
Two fair dice are rolled together. The probability that the sum rolled is greater that 8 is?

French
thanx

French
What is supervisor in French? Right now I am learning about professions, and this is the one I don't know

Probability
99.7?

Probability
The probability that Robin hits the target is 0.6. The probability that John hits the target is 0.3. The probability that Robin hits the target and John does NOT hit the target is?

Probability
A jar contains four red, four yellow, and three green jelly beans. If Joan and Jim take one jelly bean each, the probability that they both take a red jelly bean is?

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