# Posts by anne

Total # Posts: 774

**Math**

The boys mixed 10 gallons of 20% pure lemon juice mix and 10 gallons of the 70% pure lemon juice mix , because they wanted 20 gallons of lemonade at a 40%lemon juice mixture. They thought that because 40% was almost halfway between 20% and 70%,they should mix equal parts of ...

**Math**

10 + h > 2 + 2h

**Foreign exchange**

Just want to have clarification on foreign exchange rates. I am confused with appreciate/depreciate...which is better, etc. Let's say a Canadian company has USD costs to be paid. It will be better for the company if USD depreciates/lose value (example: from 1CAD = 0.753USD...

**Chemistry**

Hello I have a question relaté to nucleophiles. Is The alcohol CH3OH a nucleophile or only its ion CH3O- ?

**Calculus**

It's |sin(4n/?)+3|/4^n

**Calculus**

I have to get the result of the serie from 1 to infinite of |sin(4n/?) +3|/ 4^n I really don't know what to do... Please I would really appreciate if anyone can help me

**Math, Inequalities**

Prove the following inequalities. Then state for which values the LHS equals RHS. 1) a^2 + b^2 ? 2(a-b-1) 2) Given a + b = 1, prove the inequality a^2 + b^2 ? 1/2 Please explain how you solved it. Thanks.

**Math - Calculus**

g(x)=?[6x,3x] (u+2)/u-5) du Find g'(x)

**LA**

I think it might also be don't put the cart before the horse. Is that right?

**LA**

She was just hoping she would

**LA**

What two idioms would you use for this sentence? She bought a present before being invited to the party.

**algebra**

Yogi is 6 years older than Michelle. The sum of their ages

**math**

The are 99 dogs. 49 bark consistently while 69 whines. 29 dogs both whine and bark. How many of the dogs neither whine nor bark?

**Calculus**

Consider the given function and the given interval. f(x) = (x ? 3)^2, [2, 5] (a) Find the average value fave of f on the given interval. fave = (b) Find c such that fave = f(c). c = (smaller value) c= (larger value)

**Math**

Adam cuts the cake into equal-sized pieces. Each piece has a length of 5 centimeters, a width of 5 centimeters, and a height of 3 centimeters. How many pieces of cake does Adam have? I stated 75, I used the volume equation l x w x h.

**Physics **

An electric heater the temperature of 120g of water in a thin light vessel through 10k in 2 minutes, when placed in 70g of water contained in a metal vessel of mass 0.55kg the temperature rises through 9k in the same time. Calculate from the above The heat supplied in 2 ...

**English**

It is an age that is considered to be very old. Here is the example for you: He lived to the ripe old age of 91.

**Algebra**

Let a ? b = 2a ? 3b. What is the value of (1 ? 2) ? 7?

**French (HELP!)**

Can you check one last time! Merci beaucoup. 1. Voyager dans le monde est une grande partie de moi. 2. Voyager ouvre mes yeux et j'ai (pris) cette (chance). 3. Voyager m'aide à apprendre qui je suis. 4. Voyager crée des relations significatives avec des ...

**French (HELP!)**

Are these grammatically correct?

**French (HELP!) **

1. Traveling around the world is a huge part of me. Voyager dans le monde est une grande partie de moi. 2. Traveling opens my eyes and I've (taken) that (chance). Voyager ouvre mes yeux et j'ai (pris) que (chance). 3. Traveling helps me learn who I am. Voyager m'...

**Language Arts**

Have you read this book? I think I could help you if you present the ideas you have already got. Also, it is important to mention that there is one online writing service I like and where you can get the help with your essay. Google more about Marvelous essay service.

**Chem**

How would the pressure of a gas change if suddenly the intermolecular forces were repulsive rather than attractive?

**Chem**

suggest an explanation for the ideal nature of helium compared to the other gases

**math**

what is the function for vertex form?

**math**

Students noticed that the path of water from a water fountain seemed to form a parabolic arc. They set a flat surface at the level of the water spout and measured the maximum height of the water from the flat surface as 6 inches and the distance from the spout to where the ...

**math**

In economics, revenue Upper R is defined as the amount of money derived from the sale of a product and is equal to the number x of units sold times the selling price p of each unit. If the selling price is given by the equation p -1/10x+60 , express revenue R function of the ...

**Math**

A landlady currently rents each of her 50 apartments for $1300 per month. She estimates that for each $100 increase in rent, two additional apartments will remain vacant. a. Construct a function that represents the revenue R(n) as a function of the number of rent increases, n...

**writing**

what is the topic of your presentation? I guess we would be more helpful if you give us more details. Or you may also turn to the professionals from Marvelous essay service and ask them to assist you

**Algebra**

A company has a fixed monthly manufacturing cost of $12,000 and it costs $0.95 to produce a mechanical pencil. They then sell each pencil for $1.25. How many units must be sold before this company breaks even?

**Math**

A total of 45 412 runners participated in the Vancouver Sun Run. Of these runners, 0.85% completed the run in under 40 min. How many runners completed in under 40 mins? In fact, 0.13% of the runners completed the run in less than 34 min. How many runners were in this group?

**math**

Rectangles ABCD and PQRS have the same length-to-width ratio. Calculate the length of rectangle PQRS rectangle abcd: L: 30 cm W: 18 cm rectangle pqrs: L: ? W: 27 cm

**math**

A beetle is 1.8cm long. A drawing of the beetle is made using a scale of 5:1. What is the length of the beetle in the drawing?

**math**

You'd divide the numbers?

**Math Limits**

lim(as p-->4) of (p^3 - 64) / (4-p) My work: p^3 - 64 = (p-4)(p^2 + 4p + 16) 4 - p = -(p-4) ((p-4)(p^2 + 4p + 16)) / -(p-4) p-4 cancels out -(p^2 + 4p + 16) -((4)^2 + 4(4) + 16) -(16 + 16 + 16) - 48 Is this right?

**Math**

If an average catcher takes 1.9 seconds to throw a baseball from home plate to second base on a 90 foot baseball diamond how fast in mph did the catcher throw the ball?

**Chem equilibrium**

Unfortunately, 76% was also not the right answer

**Chem equilibrium**

I don't understand part b NO(g) + O3(g) <=> NO2(g) + O2(g) (a) If 2.50 moles of NO and 3.30 moles of O3 are placed in a 5.30 L flask, what is the equilibrium concentration of O2? Kc = 5.00 ✕ 10-6. .00121 (I got this correct) (b) What percent of the O3 reacts? ...

**Chemistry**

That H is supposed to be attached to the first Carbon, it just got shifted when I posted the question!

**Chemistry**

I have a homework question that says: "Three resonance structures of the following anion are possible. One is given below, but it is incomplete. Complete the given structure by adding non-bonding electrons and formal charges. Draw the two remaining resonance structures, ...

**Math**

Hello, I'm supposed to do the following questions for the equation y=cos(pi/3)x for intervals [0,6] a) For what values of x does the instantaneous rate of change appear to equal 0? b) For what value(s) of x does the instantaneous rate of change appear to reach a maximum ...

**Math**

Bernadette cuts a piece of fabric into four pieces of the same length. After she cuts off 3 feet from one of the pieces, she is left with a piece that is 2 feet long. What is the length of the piece of a fabric she started with?

**math**

A rectangular prism is 2 1/3 mm long, 1 1/2 mm wide and 3 mm tall. What is the volume of the prism? V = 2 1/3 x 1 1/2 x 3, or V = 7/3 x 3/2 x 3, or V = 63/6, or V = 10 1/2

**Geometry**

Sorry it wasn't complete. The shaded area is the area outside the circle. No radius was given for the circle. Does that mean that I can get the radius of the circle from the rectangle's dimension?

**Geometry**

Find the area of the shaded region, if the rectangle has dimensions 8m and 18m and the circle is inscribed in the rectangle. I just need an example on how to solve for this. I'm pretty bad at following without examples and my book doesn't show one.

**Psych**

One major reason that groups tend to take greater risks than their members would take as individuals is

**algebra**

I answered a. 7. Is that correct?

**algebra**

Question 8: What is the value of c such that: x2 + 14x + c, is a perfect-square trinomial? a. 7 b. 98 c. 196 d. 49

**Algebra**

Question 1 of 20 5.0 Points Graph the set of points. Which model is most appropriate for the set? (- 1, 20), (0, 10), (1, 5), (2, 2.5) what would graph look like?

**algebra 1**

Thank you. I have a final and midterm. Can I ask for help tomorrow? I need a 65 to graduate. I'd really appreciate it. I can't afford a tutor.

**algebra 1**

What is the simplified form of the expression? x^8*2y^10*5x^5

**Algebra**

Identify the domain and range of the relation {(-9,2), (-4,2), (3,2), (9,2)} thanks for your help. please show answer.

**Algebra**

I think it's two separate questions. I was confused.

**Algebra**

This is added to my question: Represent the above relationship between the number of triangles and the perimeter of the figures they form by filling in the table (Number of triangles perimeter 1 2 3)

**Algebra**

A taco stand sells tacos for $3.35 easch. The stands expenses for the day are $210. Define our variables and write an inequality to represent the amount of tacos they need to sell per day to make a profit, and then solve the inequality. Provide your conclusion as a complete ...

**algebra**

Write a compound inequality that the graph could represent. Please exlain and show if you can. Thank you...

**algebra**

Thank you so very much Reiny!

**algebra**

a cheetah ran 300 feet in 2.92 seconds. What was the cheetahs average speed in miles per hour? Please show steps.THANKS!!

**physics**

The radius of a roll of paper is 7.6 cm and its moment of inertia is I = 2.9 × 10^3 kg·m2. A force of 3.2 N is exerted on the end of the roll for 1.3 s, but the paper does not tear so it begins to unroll. A constant friction torque of 0.11 m·N is exerted on...

**world history**

the site is gatestoneinstitute -Was Iraq War worth it by Richard miniter (I wasn't able to post the link so here's the title of the article) Can someone help me identify what the author's argument is. I know the question is, is the iraq war worth it? but I was ...

**math**

In triangle XYZ,A is the midpoint of YZ. The bisector of the exterior angle at X of XYZ cuts YZ produced at B. The line through A parallel to XB, cuts XY at P and XZ produced at Q. 1.PY/PX= ZA/BA = QZ/QX. Please help

**English**

english is the language of opportunity. Why bother to teach indigenous language?

**physics**

a 2.2 kg ball is dropped from 3m above vertical spring whose spring constant is 450 n/m. a) how far will it compress the spring? b.) what velocity will the ball have when it leaves the spring again?

**Physics**

A 5kg box is pulled for a distance of 12m with a force of 20N along frictionless surface. The force is applied at an angle that is 15 deg. above the horizontal. a.) how much work was done by the applied force? b) how fast will the box be moving at the end of the 12m if it ...

**PHYSICS!!!**

A skier traveling 12.0 m/s reaches the foot of a steady upward 18 degree incline and glides 12.2 m up along this slope before coming to rest. What was the average coefficient of friction?

**Physics**

I couldn't figure out a, but b is (1/2.41) - (1/-13) = 2.03 cm and the second blank is none.

**Math**

If 8,x,y,z and 20 are in A.P.find x,y,z

**Astronomy**

F = GM1M2/R2 = (6.67x10-11 x 1.9891x1030 x 25) / (3000)2 =

**English**

Yes, I may share with one online writing service you can definitely use. And there is Prime Writing service where you can get the help on time and for the good student price

**math**

The park currently contains 20 wolves and the park rangers are introducing additional wolves at the rate mt(12−t) wolves per month, 0≤t≤12 for some constant m>0 to be determined. However, the park rangers are concerned about damaging the current rabbit ...

**Statistics**

What do i do to calculate the 25% mean of 50 variables? Like, how many do I take away from the smallest and largest sides?

**Math**

thanks so much Ms. Sue

**Math**

Ms. Sue just so I understand should the answer be just 9/32 or 9/32%. thanks for your help.

**Math**

Need help with this please. what percent of 2 2/3 is 3/4? .75/2.6 = x/100 2.6x/2.6 = 75/2.6 answer I came to is 28.846153, is this correct. Need assistance

**6th grade Math**

120

**Chemistry**

A solution containing a mixture of 0.0381 M potassium chromate (K2CrO4) and 0.0769 M sodium oxalate (Na2C2O4) was titrated with a solution of barium chloride (BaCl2) for the purpose of separating CrO42– and C2O42– by precipitation with the Ba2 cation. Answer the ...

**math functions**

I got -x^2 + 2x + 4 - 3 but it was marked wrong

**math functions**

what is f(x) - g(x) when f(x)=3x-3 and g(x)=x^2-4

**physics**

a bock with mass 60kg sits on a surface with static friction Us = 0.51. a spring (k = 69N) is stretched horizontally by 11cm but the block is still stationary. What is the friction force felt by the block when stretched 11cm?

**Math**

Charlie has a drawing of his bedroom that measures 8 1/2 inches long by 7 1/4 inches wide. If the real room measures 15 ft in length, what is the rooms width?

**Algebra**

Your friend claims that she has a bag of 30 coins containing nickels, dimes, and quarters. The total value of the 30 coins is $3. There are twice as many nickels as there are dimes. Is your friend correct? Explain your reasoning

**Algebra**

10

**physics**

Two workers pull horizontally on a heavy box, but one pulls twice as hard as the other. The larger pull is directed at 25.0 degrees west of north, and the resultant of these two pulls is 350.0 N directly northward. Use vector components to find the magnitude of each of these ...

**algebra**

-2(x-3y)-3x+5y)-(6x-8y)

**math**

write 515% = 3/10 as a mixed number or fraction. answer in simplest terms

**Chemistry**

A tanker spilled 5,000l ammonia (approximately 0.2M). How much sulphuric acid is needed to nuetralize ammonia?

**Sequences**

Terms 1 through 5 of a sequence are shown below. 8/81 , 4/27 , 2/9 , 1/3 , 1/2 What is the 10th term in the sequence? I have no clue. I tried having common denominator of 81, but that just confused me more. I would try to show more work, but I really don't know how to ...

**S.S**

I am going with B. That's what I think it is.

**S.S**

Well I'm not sure if it's D. I thought about it, but from what I read..

**S.S**

In the war on terrorism, the targets of united states strikes were a. the northern alliance troops b. pakistan and india c. afghani civilians d. al-qaeda and the Taliban is it A or C?

**collage chemistry**

You spill 1500 mg of rubbing alcohol in a box that measures 4 m x 2m x 3m. If the entire sample evaporates into a gas, what is the concentration of the alcohol in milligrams per cubic meter?

**Art**

How did plastic revolutionize the art of furniture design? A.) Designers could create works that were soft and colorful. B.) Designers could create works that were sturdy and moldable. C.) Designers could create works that were patterned and sturdy. D.) Designers could create ...

**art**

which textile techniquw do quilters use to craft blankets 1. cross-stitching 2. weaving 3. stitchery 4. knitting It's weaving or stitchery.. Help please

**L.A**

I want to say D

**L.A**

The word propose has been borrowed from the Latin propositus meaning, "set forth" in which sentence is the word propose used correctly A. he felt that propose would do more harm than good B. when you set up a propose, be certain it is correct. C. the seller accepted ...

**English**

I need a comparison for saying I love you for the first time and an explanation for it.

**English**

The transgression of being alone in the State is like bullying in our society. Can you explain to me how this is an analogy. We came up with this analogy for Anthem by Ayn Rand and I don't see how this like an analogy. Please explain.

**math**

43.844444 now you estimate

**Math**

Thanks!!!

**Math-- Ms. Sue? Can someone check please.**

Please check.. Thanks