Friday

December 9, 2016
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*

**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 **

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*