# Posts by wendy

Total # Posts: 424

**chemistry**

WHAT IS THE RATIO OF THE NUMBER OF MOLECULES IN 71 GRAMS OF CHLORINE TO THE NUMBER OF MOLECULES IN 2 GRAMS OF HYDROGEN

**chemistry**

1,2 of carbon combined with 0,1 grams of hydrogen to form a compound . a.FIND THE EMPIRICAL FORMULA OF A COMPOUND b.ITS Mr WAS FOUND TO BE 78 ,FIND THE MOLECULAR FORMULA

**stats**

Suppose we had two families, where Family A included 5 children and Family B included only 1 child. If we randomly chose a child from the families, what is the probability that the child came from Family A?

**math**

The Gallup Poll uses a procedure called random digit dialing, which creates phone numbers based on a list of all area codes in America in conjunction with the associated number of residential households in each area code. Give a possible reason the Gallup Poll chooses to use ...

**Calculus**

Thank you - (Enter your answers using interval notation. If an answer does not exist, enter DNE.) y = 4x + [5/sin x], (−π, π) concave upward (x,y)- concave downward (x,y)-

**Health**

Blood also passes through the small intestine and liver during which type of circulation pulmonary renal portal*** cardiac

**Pre-cal**

Solving the principle values of x of the equation 4cos^2x-3=0

**Life science, Life science and History**

I want to be a doctor (immunologist) I'm not sure about the last subject should it be history or Geography

**helpppp**

HA are you going to help me with my actual math problem?!

**helpppp**

Write an equation of the line passing through (3,21)and (-4,-35) in the form of A x + B y = C. Where A, B and C are real numbers

**algebra**

A national home improvement store's revenue y (in millions of dollars) during the years from 1996 to 2007 is given by the equation y=15x+55 where x is the number of years after 1996. a)Use the equation above or a graph of the equation to complete the ordered pair (6, ) b) ...

**Algebra. NEED HELP ASAP PLEASE**

The fourth month this year, you have $368 saved. At the twelfth month this year, you have saved $504. What is your savings rate?

**algebra HELP PLEASE**

A city is considering building a commuter train. The steepest section of track has a fall of 72.8 feet for a horizontal distance of 280 feet. What is the grade of this section of track? The downgrade of this section of track as a reduced fraction is? Converted the fraction to ...

**Math**

If the 60% is worth 25% of her mark that is worth 1/4 of her mark. The 75% previous average is worth 3/4 of her mark. That means we can add 60 + 75 + 75 + 75. If we total those marks we get 285. Then we divide by the number of marks (4). So 285/4=71.25%

**math**

I agree...thanks, Damon. I'm calling a typo on this question and not going to worry about it anymore.

**math**

A is 100m away from headquarters. B is 8m away from headquarters. A runs twice as fast as B. How far away from headquarters will B be when A arrives at headquarters. I drew a number line and did a jump of 16 for A and a jump of 8 for B. This brings A to 84m away and B is at HQ...

**Math**

There are 15 cards in total. Cards that are numbered with multiples of 3 are: 3, 6, 9, 12, 15. Cards that are numbered with multiples of 5 are: 5, 10, 15. 15 is a multiple of both numbers so it only needs to be counted once and if we count the other cards that is a total of 7 ...

**Algebra/Math**

The difference of two numbers is 29. If five times the smaller number is twice the larger, the result will be one. What is the larger number ? Please help.. I need an answer in 10 days. Thank you, much appreciations.

**algebra**

A 74-foot length of wire is to be cut into 2 pieces, so that the longer piece is four feet longer than six times the shorter piece. Find the length of each piece.

**algebra**

A local salesman receives a base salary of $900 monthly. He also receives a commission of 7% on all sales over $1000. How much would he have to sell in a month if he needed to have a monthly income of $2900?

**Math**

Sheryl gets paid time and a half for working overtime at her job. Last week she worked 47 hours and her paycheck was $375.78. What is her normal hourly rate? Please help with figuring what formula I need to get the answer. Thanks

**math**

Alvin can go upstream at a rate of 6 miles per hour and downstream at a rate of 12 miles per hour. One day while Alvin was on the river, he received a call telling him he needs to turn around and come home. So he turned around and went back to his starting point. If his entire...

**math**

We are planning a reception for our daughter. The hall that we are renting charges a $70 cleanup fee. In addition to the cleanup fee, they charge $28 per guest for food and drinks. If we have $1,800.00 available, what is the maximum number of guest we can invite without going ...

**Math/Physics**

I am unsure of what exactly I am looking for in this problem... One of the highlights of the Calaveras Fair, besides the bullfrog jumping contest, is the watermelon seed spitting contest. The seed spitting is being done in the direction of s ⃗=5i ⃗+j ⃗. The ...

**maths,geography,agriculture,life science**

Agricultural scientist

**History,geography,maths literacy,english,life orientation,life sciences,and XHOSA**

YES

**geometry**

hat is the area of a regular octagon with a side length of 5 meters and a distance from the center to a vertex of 6.5 meters?

**Please help**

Lisa rowed her boat for two miles downstream. The trip took her 20 minutes. She then turned around and rowed back the two miles. It took her one hour to row back upstream. a. At what rate of speed did Lisa row downstream? b. At what rate of speed did Lisa row upstream? c. ...

**Math**

Lisa rowed her boat for two miles downstream. The trip took her 20 minutes. She then turned around and rowed back the two miles. It took her one hour to row back upstream. a. At what rate of speed did Lisa row downstream? b. At what rate of speed did Lisa row upstream? c. ...

**Math**

Below are the dimensions of an assortment of rectangles. Which rectangle has dimensions that are similar to a rectangle that has a dimension 2 times 5? Assume that all the units are identical. 5 times 8 6 times 9 4 times 10 1 times 10 8 times 20 10 times 4

**Math**

Lisa rowed her boat for two miles downstream. The trip took her 20 minutes. She then turned around and rowed back the two miles. It took her one hour to row back upstream. a. At what rate of speed did Lisa row downstream? b. At what rate of speed did Lisa row upstream? c. ...

**Math**

Jacob stands 4.5 feet tall and casts a 2.7 foot shadow. A. Using this relationship, determine how tall Jacob's house is if the house's shadow measures 19.2 feet. Assume the triangles are similar. B. Explain the concept of indirect measurement and how it is used in this...

**Math**

ok thanks

**Math**

I think it's 12.5 inches

**Math**

Ernesto drew a map of his school. He used a scale of 1 inch: 50 feet. What distance in inches on Ernesto's map should represent the 625 feet between the cafeteria and the science lab?

**Math**

Ok thanks both of you:)

**Math**

so is it 1 inch= 2 feet?

**Math**

If you are making a model of your bedroom, which would be an appropriate scale: 1 inch = 2 feet, or 1 inch = 12 feet? Explain. Please help me

**Math**

Explain how you could use a map to estimate the actual distance between Miami, Florida, and Atlanta, Georgia.

**math**

If you are making a model of your bedroom, which would be an appropriate scale: 1 inch = 2 feet, or 1 inch = 12 feet? Explain.

**Math**

If the number in the numerator of a unit rate is 1, what does this indicate about the equivalent unit rates? give an example

**Math**

c. how many servings can be made from 108 cups of punch

**Math**

Wendell is making punch for a party. the recipe he is using says to mix 4 cups pineapple juice, 8 cups orange juice, and 12 cups lemon-lime soda in order to make 18 servings of punch. a. How many cups of punch does the recipe make? b. if Wendell makes 108 cups of punch, how ...

**Math**

never mind. So the inequality simplifies to x>86. part b is that the lowest score karl can receive is an 86, right?

**Math**

ok. so it results in 442+x/6>88. how would you solve that?

**Math**

Karl's scores on the first five science tests are shown in the table. Test 1 Test 2 Test 3 Test 4 Test 5 85 84 90 95 88 Part A. Write am inequality that represents how to find the score he must receive on the sixth test to have an average score of more than 88. Part B. ...

**Math**

Thanks so much:)

**Math**

You score 15,16,17,14, and 19 points out of 20 possible points on five tests. what must you score on the sixth test to have of at least 16 points?

**math**

the question doesn't have the anything in the equal slot. it's just 4x-12=

**math**

What is 4x-12?

**Math**

Which of the following situations corresponds to the equation below? 1/3x + 8 = 18 2/3 Keneda is packing some suitcases to take on a cruise. The cruise line allows each guest to bring up to three pieces of luggage with a limit on total weight. So far, she has packed pounds ...

**math**

thank you so much!

**math**

I don't think any of the choices do that. is the answer A?

**math**

Silas took 15 bags of glass to the recycling center on Monday. He took 6 bags of plastic to the recycling center on Tuesday. Which equation could be used to find x, the total number of bags of glass and plastic Silas took to the recycling center? A. x - 15 = 6 B. x + 15 = 6 C...

**Algebra**

Why C is incorrect?

**Calculus**

The following rational function describes concentration in blood of a certain medicine taken once depending on time, find: A) the horizontal or oblique asymptote B) the vertical asymptote, if any C) describe their meanings f(x)=x/x^2-100

**Economic**

Write an essay based on this topic what are the welfare payment or consumer subside?

**economic**

Government is providing the child support grant to those parent who are not working and earn small amount

**Math**

don't think your equation is right. Can't get the answer

**Math**

Mr. Lee invested some money. Lost 4% in a stock and gained 3.2% in a bond. Overall he lost 11.2$. If he invested the amount in the stock to the bond vice versa, then he wouldve gained $3.2, how much is in the bond and how much is in the stock? I am so confused, and out of ...

**English**

"The wind seems to represent the illness that caused Annabelle's death.The reality of Virgina's death is reflected by Annabel Lee's death in line 26 as her and Poe have been sweethearts for a long time, before suddenly succumbing to illness. (Does that work? ...

**English**

Ok, thank you! Did you see my response to your comment on my previous question post?

**English**

Another question regarding the poem Annabel Lee. Can you check my response for me and help me elaborate on the rhythm explanation please; 1. What is the overall tone of the poem? How does the rhythm of the poem affect the tone? my ans: The tone of the poem is passionate and ...

**English**

The wind seems to represent the illness that caused Annabelle's death.The reality of Virgina's death is reflected by Annabel Lee's death in line 26 as her and Poe have been sweethearts for a long time, before suddenly succumbing to illness. (Does that work? What is...

**English**

I am stuck on these two questions(can you check #1 one over for me?)! For the poem Annabel Lee; 1. What romanticized explanation does the speaker give for the death of his love, Annabel Lee? He tells us that angels from heaven were jealous of their love relationship, and took ...

**English**

Ok, thank you for the guidance. It's just that I am writing from the perspective of someone who has very limited experience with working in an exec position for an organization. If I really wanted this position how could I sell myself? Any examples?

**English**

I am "applying"(practicing writing resumes in english) for a leadership position at a local non profit and I am writing my cover letter, expressing why I want to serve as a president or marketing director. Though this is my first time taking on an exec position role ...

**Business**

Great, thank you!

**Business**

Wouldn't a "administrative assistant I" be considered a non-exempt employee? Non-exempt employees are covered by overtime provisions of the FSLA act and must be paid overtime for all hours worked over 40.

**Business**

Most employees are entitled to overtime pay under the Fair Labor Standards Act. They are called non-exempt employees.

**Business**

Wouldnt a "Administrative Assistant I" be considered as a non-exempt job??

**French Grammar**

Can someone please check these 4 sentences? a. La bibliothèque à New York est plus grande que la bibliothèque à Paris. b. Les résidences des New York sont plus moderns que les résidences de Paris. c. Le campus de New York est moins int...

**math**

building A is 180 feet shorter than building B. The total height of the two building is1480 feet. find the length of each building

**Math**

U guys are stupid it's not 5-2 for real

**Chemistry**

Sorry I meant NH4OH, not NH3OH

**Chemistry**

I posted this question earlier but the person that answered did not include how to find the moles of the problem When 80.0 mL of HCl is added to 80.0 mL of NH3OH, the temperature increases 2.5 celsius. Assuming the final solution has the same specific heat capacity as liquid ...

**Chemistry**

Oh yes sorry I did mean NH4OH, how do I find the moles?

**Chemistry**

When 80.0 mL of HCl is added to 80.0 mL of NH3OH, the temperature increases 2.5 celsius. Assuming the final solution has the same specific heat capacity as liquid water, the heat produced in the reaction between two solutions is: I don't know how to find the moles and mass

**Chemistry**

When 80.0 mL of HCl is added to 80.0 mL of NH3OH, the temperature increases 2.5 celsius. Assuming the final solution has the same specific heat capacity as liquid water, the heat produced in the reaction between two solutions is: I don't get how to find the moles and mass

**chemistry**

What will be the final temperature of 650 g of water initially at 5.5°C if it is heated by burning 7.5 g of carbon to carbon dioxide. The molar heat of reaction is -393.5 kJ/mol. I do not understand how to do this question

**chemistry**

How many moles of H2S would we expect to be formed by reaction if 3.50 moles of HNO3 reacted completely?

**Math**

1. The ratio of the number of dimes to the number of pennies in a purse is 3 to 4. If 3 pennies are taken out of the purse, the number of dimes and the number of pennies in the purse will be equal. How many dimes are in the purse? (Answer key says 9- and if I multiply the ...

**chemistry**

What physical property of water and HCl allows us to separate them from the zinc chlorine compound produced in the reaction?

**chemistry**

what is shorthanded configuration of Mg and Cl

**Math**

Hello! Can you check my answers for these questions? Thank you in advance (= 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8, 10), (9, ...

**Math \ Algebra**

Hello! Can you check my answers for these questions? Thank you in advance (= 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8, 10), (9, ...

**Math( Attn: Reiny)**

ok cool! Thanks! But I have a question, why do we have to find the 'h'(-b/2a)? What does the vertex represent in these cases?

**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 ...

**Math**

and for #3, what does the 2y and 3x represent? I got the answer right thank you, but for future reference I don't know how I can find the equation..

**Math**

also, why is the new # rented 50-2x? Wouldn't it be 36-2x or something like that?

**Math**

For #2, I found the vertex- (1/2, 600.25) but my answer key says $10.50. How?

**Math**

1. If the point (-3,30) is on the graph y=(x-1)^2+14, where will the point be on y=(x-8)^2-6? I don't understand what this is asking and how I can find this. 2. A rental business charges $12 per canoe and averages 36 rentals a day. For every 50-cent increase in rental ...

**Math**

oh I see, thank you Steve! I did everything except I didn't realize the 1.1 part! I did 0.1 instead haha

**Physics**

A rabbit runs in a straight line with a velocity of +1.3 m/s for a period of time, rests for 11 s, and then runs again along the same line at +0.65 m/s for an unknown amount of time. The rabbit travels a total distance of 1080 m, and its average speed is 0.79 m/s.What is the ...

**Math**

The sum of multiples of 6 between 6 & 999? I got 83166, but my answer key says 82665.. Is my answer wrong? I used the term formula to find 166 terms multiples of 6, and then the sum formula to get 83166.

**English**

I have an essay and my topic is "our views of the past change as we mature". So I am stuck on what pieces of evidence I should write about. I am thinking of writing a narrative, and I want my "mature view" to be that the world doesn't evolve around me ...

**Math**

Which decimal value is equivalent to 7/11? _ __ _ A. 0.63 B. 0.63 C. 0.675 D. 0.7 "B" is what I chose.

**Chemistry**

Adding helium to a balloon increased its volume from 360.9 mL to 3.532 L. If the final number of moles of helium in the balloon is 22.3 mol, what was the initial number of moles of helium in the balloon? Assume the balloon contained only helium initially.

**Chem**

A flexible container at an initial volume of 5.12 L contains 7.51 mol of gas. More gas is then added to the container until it reaches a final volume of 18.3 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the ...

**Chem**

If 66.5 mol of an ideal gas is at 5.97 atm and 335 K, what is the volume of the gas?