Monday

April 27, 2015

April 27, 2015

Total # Posts: 277

**Business statistics**

5. An Aspirin manufacturer fills bottles by weight rather than by count. Since each bottle should contain 100 tablets, the average weight per tablet should be 5 grains. Each of 100 tablets taken from a large lot is weighed, resulting in a sample average weight per tablet of 4....
*March 25, 2015*

**Business statistics**

4. A study of the ability of individuals to walk in a straight line (“Can We Really Walk Straight?”, Amer. J. of Physical Anthro., 1992:19-27) reported the accompanying data on cadence (strides per second) for a sample of 20 randomly selected individuals. 0.95 0.82 0...
*March 25, 2015*

**Business statistics**

3. Determine the t-critical value for a two-sided confidence interval in each of the following situations. a. Confidence level = 95%, df = 15 b. Confidence level = 99%, n = 5. c. Confidence level = 95%, n = 15 d. Significance level = 0.01, df = 37
*March 25, 2015*

**Business statistics**

2. Each of the following is a large-sample confidence interval for μ, the mean resonance frequency (HZ) for all tennis rackets of a certain type. (114.4, 115.6), (114.1, 115.9) a. What is the value of the sample mean resonance frequency? b. Both intervals were calculated ...
*March 25, 2015*

**Business statistics**

1. Suppose the estimate of a proportion of a normal population is to be within 0.05 using the 95% confidence level. How large a sample is required if: a. It is known from previous studies that p = 0.3? b. There is no prior knowledge of p?
*March 25, 2015*

**Finance**

A speculator sells a stock short for $70 a share. The company pays a $2 annual cash dividend. After a year has passed, the seller covers the short position at $60. What is the percentage return on the position (excluding the impact of any interest expense and commissions)? ...
*January 20, 2015*

**math**

A checkerboard is 10 inches long on each side.What is the length of the diagonal from one corner to another? I know, I will need to use the equation... A2+B2=C2....but I don't know where to put the numbers. Thank you for the help!
*January 12, 2015*

**math**

About 25% of those called will find an excuse to avoid jury duty. If 11 people are called for jury duty, what is the probability that all 11 will be available to serve on the jury? (Round your answer to three decimal places.)
*October 9, 2014*

**Math**

If a car is driven at a speed of 78 mph and they travel for 3.5 hours , what is the distance traveled?
*August 26, 2014*

**Chemistry**

Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.763 M and [Sn2 ] = 0.0180 M Mg(s)+Sn^2+(aq)-->Mg^(2+)+Sn(s) I keep getting 2.57 but it says I'm wrong. Please help me!
*May 18, 2014*

**Chemistry**

Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.763 M and [Sn2 ] = 0.0180 M Mg(s)+Sn^2+(aq)-->Mg^(2+)+Sn(s) I keep getting 2.57 but it says I'm wrong. Please help me!
*May 18, 2014*

**Math**

What is the common multiple (LCM) of 5, 6,and 2?
*March 6, 2014*

**Math**

An integer greater than -10 and less than -8
*February 20, 2014*

**MATH**

prove tan (theta/2)= (sin(theta))/(1+cos(theta))for theta in quadrant 1 by providing the calculation along with the reason. I appreciate the help.
*January 29, 2014*

**Math; Please help and thank you**

Please help me. Thank you.
*January 29, 2014*

**math**

6(1/3)=2
*January 28, 2014*

**Math; Check my answers please**

1. sin(tan^-1(4/3))=4/5 2. find the angle whose tangent equals 0. tan^-1(cos(pi/2))=0
*January 28, 2014*

**math**

You have a 20-foot ladder that you are using as you paint your house. You place the ladder so that it forms an angle of 30 at the point of contact between the ladder and the ground. How high will the top of the ladder be above the ground? Please explain. thank you
*November 29, 2013*

**Math **

how many solutions does the equation sin(5x)=1/2 have on the interval [0,2pi]?
*November 22, 2013*

**math**

Write a situation that can be represented by 3.25d
*November 20, 2013*

**math**

The official ratio of width to length for the U.S. flag is 10 to 19. If a flag is 38 inches wide, how long should it be?
*November 14, 2013*

**Math**

3x+13=5(x-1)
*November 14, 2013*

**artist**

who is juten is he a artist
*October 11, 2013*

**social studies**

Thanks! So helpful.
*March 11, 2013*

**math**

x>4
*March 7, 2013*

**math**

what is 5x + 2>3x + 10
*March 7, 2013*

**math**

4 and 8
*March 7, 2013*

**maths**

A particle of mass m rests on a rough inclined surface at an angle Pi/6 to the horizontal. When a force of magnitude P is applied parallel to the surface pointing up the slope, the particle is on the point of slipping down the slope, whereas when a force of magnitude 2P ...
*February 27, 2013*

**Math**

The answer is $166 because you subtract the total amount $463 - the savings of the 4 weeks $297 and you get $166 for the 8 weeks
*February 7, 2013*

**math**

ms. fuller has 2 and 2/6 pies left over from her party. write the number of pies left over as a fraction greater than 1.
*November 12, 2012*

**physics**

A car is coasting backwards downhill at a speed of 2.6 m/s when the driver gets the engine started. After 2.5 s, the car is moving uphill at 4.6 m/s. Assuming that the uphill is the positive direction, what is the car's average acceleration?
*September 18, 2012*

**Algebra**

A machine has a work output of 28ax^5 joules and a work input of 7a^2x^6 joules. What is the efficiency of the machine?
*August 5, 2012*

**Math**

A square painting is surrounded by a 3-cm-wide frame. If the total area of the painting plus the frame is 81 cm2, find the dimensions of the painting.
*July 27, 2012*

**Math**

I understand it now! Thank you so much!
*May 7, 2012*

**Math**

I tried doing this, but I still have no idea how to solve this problem =/
*May 7, 2012*

**Math**

In a financial deal, you are promised $800 the first day and each day after that you will receive 45% of the previous day's amount. When one day's amount drops below $1, you stop getting paid from that day on. What day is the first day you would receive no payment and ...
*May 7, 2012*

**algebra**

how do you graph c =40t+ 250
*February 15, 2012*

**Business Analysis**

Barney Casey borrowed $40,000 from his parents for 2 years. He paid them a total of $45,000 at the end of the 2-year term of the simple interest loan. What rate of interest did he pay his parents?
*February 7, 2012*

**Chemistry**

Popcorn kernels pop independently (i.e. unimolecularly). For one brand at constant temperature, 15 kernels pop in 10 seconds when 200 kernels are present. After 35 kernels have popped, how many kernels will pop in 10 seconds? (Your answer may include fractions of a kernel).
*February 4, 2012*

**geometry**

In the figure below, the length of CB is 64 units and the length of BG is 137 units. What is the length of EA?
*January 8, 2012*

**PHI103 Informal Logic**

If P, then Q, where P and Q are both sentences. P is the antecedent of the conditional—the ‘if’ part—and Q is the consequent—the ‘then’ part. The corresponding conditional of an argument contains the conjunction of the premises in the ...
*October 19, 2011*

**PHI103 Informal Logic**

Assume Mary is forced to let her children go hungry or steal some food from a local grocery store. Which should she do? Construct an argument that supports Mary's decision to steal the food or an argument that shows why Mary should not steal the food.
*October 15, 2011*

**math**

How do I simplify the following expression using the distributive property? 7z-4+6(2z-9)
*August 31, 2011*

**Algebra**

I don't know how this answer was achieved. Can you take me step by step? A=1500(1+.043/4)^(4(6)) = $1938.84
*August 21, 2011*

**Algebra**

That is what I have but those aren't my answer choices. a. 2/ã3 b. ã6/3 c. -ã6/2 d. ã6/2 Which one would it be?
*August 20, 2011*

**Algebra**

Help! sin B = ( 5 square root 2)/ (5 square root 3), find the value of csc B
*August 20, 2011*

**Algebra**

log25 8 less than or greater than x How do I write this in a different form? fraction
*August 16, 2011*

**Algebra**

Please explain One factor of x3 + 5x2 + 2x - 8 is (x + 4). Find the remaining factors.
*August 16, 2011*

**Physics Help**

0.30 mol of argon gas is admitted to an evacuated 50cm^3 container at 20 C. The gas then undergoes an isobaric heating to a temperature of 340C. What is the set up for this? I can plug in the values
*August 15, 2011*

**Algebra **

Sum of the solutions to x2 - 3x - 18 = 0 Is it -3 ?
*August 15, 2011*

**Algebra **

Simplify (d^4)(d^5)^3. Is it d^27
*August 15, 2011*

**Algebra **

Answer (1,3)
*August 15, 2011*

**Algebra **

Solve the following system using substitution: y = x + 2 y = 3x I don't understand this question.
*August 15, 2011*

**Physics**

I got the above question correct, but this next one is the one I need help with: Some hydrogen gas is enclosed within a chamber being held at 200C whose volume is 0.025m^3. Initially, the pressure in the gas is 1.50 * 10^6 Pa (14.8 atm). The chamber is removed from the heat ...
*August 14, 2011*

**Physics**

Some hydrogen gas is enclosed within a chamber being held at 200C with a volume of 0.025m^3. The chamber is fitted with a movable piston. Initially, the pressure in the gas is 1.50*10^6 Pa (14.8 atm). The piston is slowly extracted until the pressure in the gas falls to 0.95...
*August 14, 2011*

**Physics**

I saw that but I dont understand what the actual answer should be.
*August 14, 2011*

**Physics**

A gas with initial conditions p_i, V_i, and T_i expands isothermally until V_f=6 V_i. What are (a) T_f and (b) p_f? 1)T_f/T_i= 2)p_f/p_i= I dont know how to solve this
*August 14, 2011*

**Algebra 2**

Help List all the possible rational zeros of p(x) = 2x^3 - 3^2 + 4x - 6.
*August 14, 2011*

**algebra 2**

I don't know how to do this. Which describes the number and type of roots of the equation x^3 - 4x^2 + 50x + 7 = 0? a. 1 positive, 2 negative b. 2 positive, 1 negative c. 3 negative d. 3 positive.
*August 14, 2011*

**Algebra-Matrix**

What about this one? Correct? |1 0 0 1| The answer would be 1
*August 12, 2011*

**Algebra-Matrix**

Is this right then? |12 -21 -2 -2/3| answer-1/50
*August 12, 2011*

**Algebra-Matrix**

How would I do these Matrices? 1. |1/2 14 10 -8| 2, Let matrix A = [8 -2 4 7 ] Let matrix B = 2A, Find b_22
*August 12, 2011*

**Algebra-Matrix**

answer 1. ? 2. 3
*August 12, 2011*

**Algebra-Matrix**

Solution of the determinant? Matrix |1 7 0 3| How do I do this?
*August 12, 2011*

**Algebra-Matrix**

Solve for x Matrix (5x-8 1 = (2 1 3 4m-1) 3 7m +6) How do I do this?
*August 12, 2011*

**Algebra-Matrix**

What element is a location a_23 of matrix A, if |4 -3 4| 5 0 -6 7 2 -8 I have the answer at -6 Is this correct?
*August 12, 2011*

**Algebra**

Did I answer these correct? 19.Given matrices A, B, and C are all 2x2, determine whether the equation is true for the given matrices. C(A+B)= CA + CB Answer- False 20.Matrix multiplication is not commutative. Answer-False 21.For matrices, A + B = B + A Answer-True
*August 9, 2011*

**Algebra**

Can you tell me if these are correct? I am not sure that I understand this. 1. Which is the solution for the determinant? |10 0)| 5 -7 Answer- -70? 2.Which is the solution for the determinant? |1 7)| 0 -3 Answer- -3
*August 9, 2011*

**English**

How does Paragraph #2 look? Somehow I find myself on a remote island known as the Isle of Mull off the west coast of Scotland. I begin to investigate the environment around me with the magnificent mountain scenery, raised beaches, rich grasslands, beautiful flowering fuchsia, ...
*August 9, 2011*

**English**

When writing a three step format of thesis, shouldn't I use the three specific words I chose in my thesis? Paragraph #2 environment Paragraph #3 New survival ideas Paragraph #4 Survival practices
*August 9, 2011*

**English**

Here is my essay. Can you please check? I awake very groggy, to find myself on this very remote island with not a person in sight. Attached to my shirt is a letter written by my English teacher Ms. Barlett stating that I am heading down the wrong path to a life of destruction...
*August 9, 2011*

**Algebra**

Oh, I didn't subtract the .50 I added it. I see what I did. Thanks!
*August 8, 2011*

**Algebra**

How?
*August 8, 2011*

**Algebra**

Do I have the right answer? A store owner bought a machine that laminates cards. the machine cost $1000. Each laminated item costs the owner $.50, but he charges the customers $4.00 per item. how many cards must be laminated and sold before the owner makes a profit from the ...
*August 8, 2011*

**Engllish**

Okay, Thanks!!
*August 8, 2011*

**Engllish**

Here it is. I still haven't come up with a wow ending sentence. Do I need to change my thesis statement in the 1st paragraph? I did change it in the last. I awake very groggy, to find myself on this very remote island with not a person in sight. Attached to my shirt is a ...
*August 8, 2011*

**English**

Think? I only have the conclusion to write. After about an hour of searching for a place to build my shelter, I was able to find a spot that had a slight overhang of rock to help protect me from the rain and wind. I knew that I needed to collect enough branches and leaves to ...
*August 8, 2011*

**English**

Here is my 3rd paragraph. Thoughts? Not sure how I was going to survive this ordeal I decided to open the suitcase hoping to find a cell phone. Upon opening the suitcase I found many of the items I once used in boy scouts, which was a few months before my mother’s death. ...
*August 8, 2011*

**English**

I know. We had to make it that way. You are allowed to bring another person if you want, that's it.
*August 8, 2011*

**English**

Yes and no. I had to do research on an island. This was the information that I found. What is not accurate?
*August 8, 2011*

**English**

Is this better? Paragraph 1&2 Can my thesis statement stay the same even though we changed it slightly? I awake very groggy, to find myself on this very remote island with not a person in sight. Attached to my shirt is a letter written by my English teacher Ms. Barlett stating...
*August 8, 2011*

**English**

Okay, I need to have a three step thesis. Here is what I intially cam up with and wrote my thesis statement. Paragraph #2-Reason Paragraph #3 Environment Paragraph #4 Survival What would I change them to?
*August 8, 2011*

**English**

This is the revised 1st paragraph and there are only 4 sentences I awake very groggy, to find myself on this very remote island with not a person in sight. Attached to my shirt is a letter written by my English teacher Ms. Barlett stating that I was heading down the wrong path...
*August 8, 2011*

**English**

Where do you think I should add the 5th sentence?
*August 8, 2011*

**English**

I need an attention getter in the first paragraph, I thought the first sentence was that.
*August 8, 2011*

**English**

Also Checklist Transitions 1st person point of view enhances the overall essay Should I write the essay in first person instead of 3rd?
*August 8, 2011*

**English**

I must include research from what is actually on the island. How do I do that? Listing the scenery, animals, items I have with me in the suitcase. I am really struggling with this essay.
*August 8, 2011*

**English**

Should I change my thesis?
*August 8, 2011*

**English**

#4 Here is the fourth paragraph. Willie opens the suitcase only to find many of the items that were in there were items he had once used in boy scouts a few months before his mother’s death. The folding pocket knife, nylon twine, saw, axe, fishing kit, utensils, bucket, ...
*August 8, 2011*

**English**

Please let me know what you think? I have the 1st three paragraph Imagine being ripped from the bed by several strangers, blindfolded, handcuffed and thrown into the back of a car, sometime later a plane, and then a small boat. Willie awakes very druggy, not sure where he is ...
*August 8, 2011*

**English**

I am writing an 5 paragraph essay on being stranded on an island. I chose a narrative. How does this look so far? Thesis-It was at this moment that Willie realized the reason he had been sent to this whole new environment and now had to learn a new way of survival. 2 Reason Ms...
*August 8, 2011*

**Algebra**

1. The input –output table is accurate. X Y+ 7 -5x -1 7-5(-1) =12 0 7-5(0) =7 1 7-5(1) =2 2 7-5(2) = -3 3 7-5(3) = -8 Answer- True
*August 7, 2011*

**Algebra**

1.What is the domain of this relation? domain range -3 3 -2 -6 -1 0,15 0 -6 1 -1 Answer- -3,-2,-1,0,1 2. Compare the quantity in Column A with the quantity in Column B Column A slope of y =3 Column B slope of x =3 Answer- The two quantities are equal 3. What is the equation of...
*August 7, 2011*

**Algebra**

1. What is the mapping of? Domain Range -3 3 -2 -6 -1 0, 15 0 -6 1 -1 I needed to represent these with arrows, but I can't. a. relation b. linear function c. all of these d. none of these Answer- none of these 2. Re-write 2x - 3y < 6 in slope intercept format. Answer- y...
*August 7, 2011*

**Algebra**

Answers for #4 a. The quantiy in Column A is greater b. The quantity in Column B is greater c. The two quantities are equal d. the relationship cannot be determined on the basis of the information supplied. Are the rest of them correct
*August 7, 2011*

**Algebra**

1. Given g(x) = x^2 -x, find g (2/3). Answer- -2/9 2. The scatterplot of this data would suggest a Study Time (Min) 14 20 23 25 28 32 Test Score 60 67 68 70 72 73 Answer- positive correlation 3. The scatterplot of this data would suggest a # of cookies consumed each week 1 3 4...
*August 7, 2011*

**Algebra**

Sorry, I wrote the answer wrong. 3/5 < x < 1 Are the rest correct?
*August 7, 2011*

**Algebra**

1.What is the shape of the graph of any linear function? Answer-line 2. Solve for x in |5x -2| >5 Answer- 2/3 < x <1 3. Compare the quantity in Column A with the quantity in Column B. Column A x + 12 Column B 12 + x Answer-The two quantities are equal 4. Write a ...
*August 7, 2011*