Friday
December 9, 2016

Posts by Anne

Total # Posts: 747

Chem
How would the pressure of a gas change if suddenly the intermolecular forces were repulsive rather than attractive?
December 6, 2016

Chem
suggest an explanation for the ideal nature of helium compared to the other gases
December 6, 2016

math
what is the function for vertex form?
November 14, 2016

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 ...
November 14, 2016

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 ...
November 14, 2016

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...
November 14, 2016

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
November 7, 2016

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?
October 28, 2016

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?
October 21, 2016

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
October 18, 2016

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?
October 18, 2016

math
You'd divide the numbers?
October 18, 2016

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?
October 17, 2016

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?
October 16, 2016

Chem equilibrium
Unfortunately, 76% was also not the right answer
September 22, 2016

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? ...
September 22, 2016

Chemistry
That H is supposed to be attached to the first Carbon, it just got shifted when I posted the question!
September 8, 2016

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, ...
September 8, 2016

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 ...
August 24, 2016

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?
August 11, 2016

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
July 29, 2016

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?
July 14, 2016

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.
July 14, 2016

Psych
One major reason that groups tend to take greater risks than their members would take as individuals is
July 10, 2016

algebra
I answered a. 7. Is that correct?
June 1, 2016

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
June 1, 2016

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?
June 1, 2016

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.
June 1, 2016

algebra 1
What is the simplified form of the expression? x^8*2y^10*5x^5
June 1, 2016

Algebra
Identify the domain and range of the relation {(-9,2), (-4,2), (3,2), (9,2)} thanks for your help. please show answer.
May 30, 2016

Algebra
I think it's two separate questions. I was confused.
May 30, 2016

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)
May 30, 2016

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 ...
May 30, 2016

algebra
Write a compound inequality that the graph could represent. Please exlain and show if you can. Thank you...
May 30, 2016

algebra
Thank you so very much Reiny!
May 30, 2016

algebra
a cheetah ran 300 feet in 2.92 seconds. What was the cheetahs average speed in miles per hour? Please show steps.THANKS!!
May 30, 2016

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...
May 8, 2016

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 ...
May 7, 2016

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
April 25, 2016

English
english is the language of opportunity. Why bother to teach indigenous language?
April 14, 2016

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?
April 12, 2016

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 ...
April 12, 2016

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?
April 4, 2016

Physics
I couldn't figure out a, but b is (1/2.41) - (1/-13) = 2.03 cm and the second blank is none.
March 21, 2016

Math
If 8,x,y,z and 20 are in A.P.find x,y,z
March 19, 2016

Astronomy
F = GM1M2/R2 = (6.67x10-11 x 1.9891x1030 x 25) / (3000)2 =
March 6, 2016

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 ...
February 21, 2016

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?
January 19, 2016

Math
thanks so much Ms. Sue
November 21, 2015

Math
Ms. Sue just so I understand should the answer be just 9/32 or 9/32%. thanks for your help.
November 21, 2015

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
November 21, 2015

6th grade Math
120
November 4, 2015

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 ...
October 15, 2015

math functions
I got -x^2 + 2x + 4 - 3 but it was marked wrong
October 12, 2015

math functions
what is f(x) - g(x) when f(x)=3x-3 and g(x)=x^2-4
October 12, 2015

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?
September 23, 2015

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?
September 8, 2015

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
September 6, 2015

Algebra
10
August 31, 2015

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 ...
August 18, 2015

algebra
-2(x-3y)-3x+5y)-(6x-8y)
July 13, 2015

math
write 515% = 3/10 as a mixed number or fraction. answer in simplest terms
July 6, 2015

Chemistry
A tanker spilled 5,000l ammonia (approximately 0.2M). How much sulphuric acid is needed to nuetralize ammonia?
June 8, 2015

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 ...
May 31, 2015

S.S
I am going with B. That's what I think it is.
May 28, 2015

S.S
Well I'm not sure if it's D. I thought about it, but from what I read..
May 28, 2015

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?
May 28, 2015

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?
May 19, 2015

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 ...
May 12, 2015

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
May 12, 2015

L.A
I want to say D
May 5, 2015

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 ...
May 5, 2015

English
I need a comparison for saying I love you for the first time and an explanation for it.
May 4, 2015

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.
May 4, 2015

math
43.844444 now you estimate
May 4, 2015

Math
Thanks!!!
May 4, 2015

Math-- Ms. Sue? Can someone check please.
Please check.. Thanks
May 4, 2015

Math
1. Given the function rule f(x)= x^2 - 3x + 2, what is the output of f(-2)? A. 12 B. 4 C. -8 D. 0 2. Suppose you earn $10 each hour you babysit. Which function describes the relationship between your total earnings E and the number of hours you babysit, h? A. E(h) = 10h B. E(h...
May 4, 2015

Math. first and last repost. please help
Find the function that has the greater rate of change As x increases by 1, y increases by 3. The graph has a line and 3 dots. the dots are labeled- x: -1 | 0 | 1 y: 0 | 2 | 4 A. the slopes are equal B. the graph has a greater slope C. the function rule has a greater slope**** ...
May 3, 2015

Math please help.
Find the function that has the greater rate of change As x increases by 1, y increases by 3. The graph- x: -1 | 0 | 1 y: 0 | 2 | 4 A. the slopes are equal B. the graph has a greater slope C. the function rule has a greater slope**** D. none of the above
May 3, 2015

Chemistry (Molarity)
Indicate the concentration of each ion or molecule present: a mixture of 48.0 mL of 0.11 M KClO3 and 28.0 mL of 0.29 M Na2SO4. Assume the volumes are additive. a) [K+] b) [ClO3-] c) [SO42-] d) [Na+] We haven't taken notes on this particular type of problem yet and I can&#...
May 3, 2015

math
It's C because $5 for 1 sub .. so y=5x for 1 it's $5 for 2 it's $10 and on and on.
April 26, 2015

math
Nope
April 26, 2015

math
No, it's C
April 26, 2015

Algebra
An airplane flies 165 miles from point A in the direction 130 degrees and then travels in the direction 245 degrees for 80 miles. Approximately how far is the airplane from A?
April 24, 2015

Science last question
Ms. Sue usually says something similar to --> "you had two guesses all ready. Please don't post this again." So, I'm gonna stop here because I've already had 2 guesses and I don't want it to seem like I'm not doing any work. Anyways, great ...
April 16, 2015

Science last question
Yes lol. There is no size on the paper for me. it just shows both boxes. box A is bigger than box B, and box A is 100 g and box B is 10,000 g If it's not C I was also thinking answer choice D
April 16, 2015

Science last question
C. am i right?
April 16, 2015

Science last question
Which of the following boxes would have the strongest gravitational pull on a third object positioned at an equal distance from both boxes? Box A: 100 g Box B: 10,000 g A. box b because it has more mass B. box a because it has less mass C. box a because it is bigger*** D. box ...
April 16, 2015

science
thanks, and yes I was referring to question 4 and 5 sorry!!
April 16, 2015

science
4. When a fan is turned on, it changes electrical energy into ______ energy. A. motion B. magnetic C. gravitational D. electromagnet 5. An experiment discovered that a particular material was a poor conductor of electricity. This material would most likely be used as an A. ...
April 16, 2015

art only 2 questionssss
ahh. alright well it's not D so.. C? If I'm wrong I understand I can't ask again.
April 12, 2015

art only 2 questionssss
In an effort to help a student understand the concept of shading, which teaching strategy could an educator use to help someone who learns best through hands-on activities? A. explain shading techniques out loud B. write shading techniques on the board. C. give time to ...
April 12, 2015

L.A
Thank you!
April 12, 2015

L.A
C?
April 12, 2015

L.A
In which sentence is the meaning of the word blackmail best represented? A. they hoped that her envy would not cause blackmail B. they reached for the phone, eager to hear the blackmail news. C. they were afraid that blackmail would lead to more demands for money D. alone and ...
April 12, 2015

L.A
Oh, so is it B?
April 12, 2015

L.A
In the following sentence, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly. A. Everyone B. annex C. heard*** D. her Please check
April 12, 2015

Physics
At an intersection a car of mass 900kg traveling east collides with a pick up truck of mass 1800kg that is traveling North. Two vehicles stick together as a result of the collision, and after collision, the wreckage is sliding at 16m/sec in the direction 24 degrees East of ...
March 31, 2015

math
The answer to this would be 9, because anytime you multiply a negative number by a negative number, you get a positive number
March 13, 2015

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