# Posts by Lee

Total # Posts: 897

**chemistry**

This is what I get: 25.7 mmHg x (101.325 kPa/760.0 mmHg) The mmHg cancel each other out So 98.659 kPa

*November 24, 2011*

**Math help plz**

Add 3 3/4 to 4 3/4 if it equals 8 you are right

*November 24, 2011*

**Math**

No, that isn’t right. Parameter of a rectangle is the sum of 4 sides with opposite sides equal. If width is 4, both sides would be 8. Subtract 8 from 24 to get sum of other two equal sides, which is 16, divided by two would be 8. The length is 8 units.

*November 24, 2011*

**stati**

80% finish high school 40% finish college 8% get master’s 2.4% get PhD

*November 24, 2011*

**3rd grade math 1**

As+Ls=2100 Ls=large spider as=average sized spider Ls=20As so as+20as=2100 21as=2100 as=100 The average sized spider lays 100 eggs at one time

*November 24, 2011*

**math**

S+5s+s-6=50 S+5s+s=56 7s=56 S=8 So Paula saw 8 spiders, 40 beetles, and 2 caterpillars

*November 24, 2011*

**english**

You're welcome.

*November 24, 2011*

**english**

This is how I would word it: It was filled with lies, corruption, and betrayal keeping me at the edge of my seat.

*November 24, 2011*

**math**

Look over other solution and see if you can figure this one out now.

*November 24, 2011*

**math**

In this equation, a=3, b=-5, c=-11 {- b + sqrt(b^2 - 4ac)} / {2a} and {- b - sqrt(b^2 - 4ac)} / {2a} 2.92 and -1.25

*November 24, 2011*

**Psychology Please Help!!!!**

I believe the answer is d. because Billy Sue's grandmother believes girls should wear lacy pink dresses because in her culture that is how little girls should look.

*November 24, 2011*

**math**

Approximate

*November 23, 2011*

**ENGLISH-HELP!!!!**

Losing the Brace: The Straight Road Back

*November 23, 2011*

**computers**

Yes, I believe C is correct.

*November 23, 2011*

**Math**

I am assuming it is a plane that left at 7:00. (7:00)-(1.5 hrs check-in)-(1hr drive from house)=4:30

*November 23, 2011*

**ALGEBRA**

Yes, r=.075 x $900 = interest is $67.50 *************************************** r=.075 P=900 1 yr P+rP or P(1+r) or 900(1+.075) = $967.50 2 yr (P+rP) + r(P+rP) or P(1+r)^2 or 900(1+.075)^2 = $1040.06 in 2 years So for future years the formula would be P(1+r)^x where x=number ...

*November 23, 2011*

**algebra**

A. Right. 28 wins out of 54 games 28/54=.52 or 52% so 108 games left and 52% of 108 is 56 wins projected plus 28 already won so 84 wins at end of the season. B. You are right 28/54 but answer 0.51851 to nearest tenth is 51.9% C. Projected wins for the season is 84 and 84 out ...

*November 23, 2011*

**essay**

I hope this is what you are looking for: Discuss the acting of both movies, say what you liked about one and why you didn't like that about the other. Say what one movie had that the other didn't, good or bad. You might prefer the acting of one movie but the music of ...

*November 23, 2011*

**MATH**

1/20 x 4 = 1/5

*November 22, 2011*

**MATH**

2/3 div 3/5 2/3 x 5/3 = 10/9 = 1 1/9

*November 22, 2011*

**Math**

1. 5 5/6 x 2 4/5 = 16 35/6 x 14/5= 49/3 = 16 1/3 2. 2/3 divided 3/5 = 1 1/9 or 2/5? 2/3 x 5/3 = 10/9 = 1 1/9 3. 7/12 divided 2/3 = 7/8 7/12 x 3/2 = 21/24 = 7/8 4. 3 1/2 divided 3/4 = 4 2/3 or 2 5/7 7/2 x 4/3 = 28/6 = 4 2/3 5. 4 2/3 divided 7 = 2/3 14/3 x 1/7 = 14/21 = 2/3 6. 4...

*November 22, 2011*

**math**

8m x 2 m =16m sq P=8+2+8+2=20m

*November 22, 2011*

**Math problem**

P+C=R C=R-P

*November 21, 2011*

**Math**

1. 2 1/3 x 3 1/2 7/3 x 7/2 49/6 = 8 1/6 2. 4 2/3 divided 7 = 14/3 x 1/7 = 14/21 = 2/3

*November 20, 2011*

**Math**

a=.50e m=.50(.50e)=.25e u=20,000 e=20,000+.25e+.50e e-.25e-.5e=20000 .25e=20000 e=80000 Total estate was 80,000

*November 20, 2011*

**ALGEBRA**

65/100 had iPhones of those 65-30 had car too so 35 only had iPhone 40/100 had cars of those 40-30 had iPhone too so 10 only had car 35 + 10 = 45 only had iPhone OR car

*November 20, 2011*

**algebra**

Figure out how many feet in a mile we will call that x figure out how many seconds in an hour we will call that y 20y=how many feet in an hour and divide by x that will give you mph

*November 20, 2011*

**maths**

You find two numbers whos product is your surd. Trying to get one factor to be the square of a number. For example if you want to simplify a surd of 75 you would choose 25x3. you write it by using square root symbol(srs) in front of (25x3)= srs 25x srs 3 which equals 5x(srs)3 ...

*November 20, 2011*

**Pre-Calculus**

Thank you. You helped greatly.

*November 20, 2011*

**Pre-Calculus**

I'm having a had time with this problem. Could you please help with step by step resolution? e^-x / e^-1 + 3 dx Thank you..

*November 20, 2011*

**math**

A negative sign outside of parenthesis is telling you to multiply by -1 which makes positive numbers negative and negative numbers positive. So -y+25

*November 19, 2011*

**math**

Company A $5+$1 per pound Company B $3 + 1.50 per pound 27. 3+1.50x=5+1x 1.50x=2+x .50x=2 X=4 28. 6 lb package with company a $5+($1x6)=$11 6lb package with company b $3+($1.50x6)=$3+$9=$12 Company A charges less. You save $1

*November 19, 2011*

**math**

Can't illustrate in Jiskha. Should look like 7 red cubes then 3 blue cubes in a line.

*November 18, 2011*

**math**

Need the width

*November 18, 2011*

**Algebra 2**

A=2*3.14*pw A=22cm squared w=2 solve for p 222cm=2*3.14p*2 222cm=6.28p*2 484cm=12.56p 242=6.28p P=38.53cm

*November 17, 2011*

**math**

Bayside insurance offers two health plans. Under Plan A Giselle would pay the first $80 of her medical bills, plus 30% of the rest. Under Plan B Giselle would pay the first $140 but only 25% of the rest. For what amount of medical bills would plan B save Giselle money. Assume ...

*November 17, 2011*

**math**

78:23

*November 17, 2011*

**math**

What is the cost in dollars to steam clean a room W yards wide and L yards long if the steam cleaners charge 10 cents per square foot? (3W x 3L) x .10

*November 17, 2011*

**Math**

Simplify -1+9(5-3m) -1+45-27m 44-27m Solve 10=10-2m 10+2m=10 2m=0 M=0 Solve: 4b<_-2/3 b<_-2/3*1/4 b<_-1/6 Simplify 6v-8-6v+16 8

*November 17, 2011*

**algebra**

32.80-(32.80*3/4)= 32.80-24.60= $8.20

*November 17, 2011*

**English; conmas**

Combine flour, shortening, pecans, and cold water to make a tasty pie crust.

*November 16, 2011*

**math**

Both are correct because both 2 and 4 are multiples of 8 so any multiple of 8 will be divisible by 4 and 2

*November 16, 2011*

**Math**

2(20)+2(25)=90 yd

*November 16, 2011*

**algerbra 1**

The decimal notation for the fraction -9/16 is -0.56 Round to the nearest hundredth Solve 5x+8x=78 =13x=78 The solution is x= 6 Simplify the answer. Type an integer of decimal. Solve using the addition principle 9.5=p-9.2 p=9.5+9.2 The solution is p= 18.7

*November 16, 2011*

**Algebra**

-(5x+5)-4+8x -5x-5-4+8x 3x-9 x-3

*November 16, 2011*

**math**

Plan A- 80.00 +25% Plan B-90.00 +20% 80+.25x>90+.20x .05x>10 x>200

*November 16, 2011*

**History**

How does barter and commodity money compare to todays paper and coin money? please help

*November 16, 2011*

**algerbra 1**

a. What percentage of the total monthly budget is spent on labor? 1,835/5,000= 36.7% b. What percentage of the total monthly budget is spent on miscellaneous items? 1,015/5,000=20.3% c. How much do materials cost monthly? 5,000*.18= $900 d. How much do rent and utilities cost ...

*November 16, 2011*

**algerbra 1**

a. Rewrite the formula to solve for C. P+c=R C=r-p b. Imagine your profit for 1 day is $1,281, and the cost of running the business for the day is $1,463. What is the revenue for that day? Explain your answer. R=P+C R=1,281+1,463 R= $2744 You can explain the answer

*November 16, 2011*

**Algerbra1**

1.You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a.What ...

*November 16, 2011*

**algebra**

8y = 4y-36 4y=-36 y=9

*November 16, 2011*

**English**

Synonym Antonym 1) bluster threaten protect 2) commentary explanation hushed 3) facet surface sink 4) synopsis outline expand 5) tarry dawdle fast 6) setback hinder prompt 7) fidelity loyalty unfaithfulness

*November 16, 2011*

**math**

1/8= 3/24= 1 slice John 1/3= 8/24= 2 2/3 slices Maria 1/4= 6/24= 2 slices

*November 16, 2011*

**math**

Shelley 1/10 of ½ eligible and 1/20 of all eligible Daley 2/8 of ½ eligible and 2/16 of all eligible Shelley got 1/10 or .1 votes Daley got 2/8 or .25 Daley got the most votes

*November 15, 2011*

**Algera**

If x is divisible by 4,5,20. Which of the following statement must also be divisible by 4, 5, 20? x+4 x+5 x+10 x+20

*November 15, 2011*

**MATH**

1. 5/8+5/6= 15/24+20/24=35/24 2. 2 3/5+4 4/5= 6 7/5= 7 2/5 3. 13 1/2+7 2/3=13 3/6+7 4/6=20 7/6= 21 1/6 4. 3/8 - 3/8 = 0

*November 15, 2011*

**math**

3/6 (1/2)walk 2/6 (1/3)take bus 1/6 remainder

*November 15, 2011*

**geometry**

16 on each 30 foot side and 9 on each 20 foot side for a total of 50 posts.

*November 15, 2011*

**math**

Mary is 14 and Peter is 23 To figure out Peter's age: x=Peter's age 2/3(x-2)= 1/2(x+5) solve for x 2/3x - 4/3 = 1/2x + 5/2 2/3x-1/2x = 5/2+4/3 4/6x-3/6x=15/6+8/6 1/6x=23/6 X=23/6 / 1/6 X=23

*November 15, 2011*

**algebra**

I am on a limited budget for a long weekend to Maine. I have $100 and I have budgeted 40% for gas. My car is on empty and it gets 20 MPG. The average price of gas is $3.00 per gallon and the round trip to Maine is 300 miles. Do I have enough in my budget for Maine or am I ...

*November 15, 2011*

**Communication Skills**

What issues are involved in this encounter? The issues involved in this encounter are facts important to the case. The facts: Charlotte is 43 and a mother of two Husband has been diagnosed with terminal cancer Husband’s life insurance only good for 12 months of sickness ...

*November 11, 2011*

**math2**

The common denominator of 1/3 and 4/5 is 15 So 1/3 of project or 5/15 is remaining On Monday Dan completed 4/5 of remaining or 4/15 of entire project. I think of it this way, if there are 15 pieces to complete As of Monday 10 pieces were already complete which left 5 If Dan ...

*November 10, 2011*

**calculus**

Suppose the area of a square is increasing with time.At the time when the side of the square is 4 meters and the change in area is 2 sq meters per min, find the change in the length of the side of the square.

*November 6, 2011*

**calculus**

the equation of motion is given for a particle, where s is in meters and t is in seconds. find the acceleration after 2.5 seconds.

*October 30, 2011*

**calculus**

find the tangent to the ellipse £¨x^2/4)+(y^2/4£©=1 at the point (1,rad(3)).

*October 30, 2011*

**calculus**

the curve with equation 2(x^2+y^2)^2=9(x^2-y^2) is called a lemniscate. find the points on the lemniscate where the tangent is horizontal.

*October 30, 2011*

**calculus**

find y' by implicit differentiation: 5cos(x)*sin(y)=13

*October 30, 2011*

**calculus**

find d/dx (sin^(21)x *cos21x)

*October 30, 2011*

**calculus**

the limit represents the derivative of some function f at some number a. state f and a. lim (sin(pai/2 + t)-1)/t t->0

*October 30, 2011*

**calculus**

The position function of a particle is given by s=t^3-3t^2-6t, t > =0. when does the particle reach a velocity of 66 m/s?

*October 30, 2011*

**calculus**

find equations of the tangent lines to the curve y=x/(x+5) that pass through the point (2,7).

*October 30, 2011*

**probability**

This is exactly how the question is written on the test. Does that mean it can't be answered since we don't have part of the problem?

*October 27, 2011*

**Math**

I can't figure out this pattern: 1, 1, 4, 3, 9, 6, 16, 10, 25, 15, __, __, __, __

*October 25, 2011*

**math**

Thanks. That's what I thought too.

*October 24, 2011*

**math**

Every week Bradley doubles his card collection. He started with 2 cards. How many cards will Bradley have after 6 weeks?

*October 24, 2011*

**Science**

I need help with the experimental design of my project. I am testing to see if the the position (chin height, chest height, over head) of the basketball affects the number of shots that go in the basket. What is the independent variable and what are the levels of the ...

*October 22, 2011*

**Algebra**

I don't get this.

*October 13, 2011*

**ncu**

a health care professional wishes to estimate the birth weight of infants how large a sample must she select to be 90% confident that the true mean is within 6 ounces of e sample mean. the standard deviation of birth weights is is known to be 8 ounces

*October 6, 2011*

**math**

you first find the number pattern

*September 15, 2011*

**Chemistry**

What are the differences between "wet gases" and "dry gases?" Wet gas - contains H2O whereas Dry gas - does not contain H2O? Dry gas only contain Hydrogen?

*September 5, 2011*

**Algerbra**

A teacher did this problem with us in class but I dontn get it please explain. 2xy + 6 ------- 3y + 4x x = 2 y = 6 answer 3 please explain!

*August 30, 2011*

**Algerbra Fixed**

A teacher did this problem with us in class but I dontn get it please explain. 2xy + 6 ------- 3y + 4x

*August 30, 2011*

**algebra**

A teacher did this problem with us in class but I dontn get it please explain. 2xy + 6 ------- 3y + 4x

*August 30, 2011*

**algebra**

2xy + 6 -------- 3y -4z if x= 2, y=6 anwser 3 this is a question from in class i don't get. Could you explain to to me

*August 30, 2011*

**engineering**

what is civil engineering?

*August 21, 2011*

**algebra**

Find the y intercept for the equation -2x+2=4

*August 19, 2011*

**Calculus**

I'm studying infinite series and am really struggling with memorizing all the tests for convergence in my book, there's like 10 of them. I don't think I'm going to be successful in memorizing all of them. I will never be asked in my course to use a specific ...

*August 17, 2011*

**Math**

Is this a true statement and what are the steps to figure it out? 5x-3y=15:(0,5)

*August 17, 2011*

**Algebra**

Please help me One bowling charges $5.50 for shoe rental plus $2.50 per game. A second bowling alley charges $4.00 for shoe rental plus $3.00 per game. If one person rents a pair of shoes to bowl, how many games should they bowl to make the first bowling alley cheaper than the...

*August 16, 2011*

**statistics**

Consider a binomial experiment with 20 trials and probability 0.45 on a single trial. Use the normal distribution to find the probability of exactly 10 successes. Round your answer to the thousandths place.

*August 2, 2011*

**psychology**

I need help clarifying something. I was under the impression that Human service takes a generalist approach, but in a recent discussion, I was told that it is important for a therapist, clinician ect.to choose a theoretical Framework. Why is this?

*July 29, 2011*

**MATLAB**

nevermind

*July 21, 2011*

**MATLAB**

I got another MATLAB question that I seem to be struggling with. Use two separate input statements to prompt a user to enter his or her first and last names. Use the disp function to display those names on one line. (You'll need to combine the names and some spaces into a ...

*July 21, 2011*

**Computer Science - MATLAB**

thanks mathmate. It's way above my head to. I got another question Consider the following two equations: x^2 + y^2 = 42 x + 3y + 2y^2 = 6 Define a symbolic equation for each, and solve it by using MATLAB's symbolic capability. Could you solve these equations by using ...

*July 20, 2011*

**math**

I'm not exactly sure what your asking for or what the question is? I assume your trying to solve for the derivative? Did you try plugging it into wolfram alpha an clicking on show steps? That always works. Well not always, but it defiantly well if interperting (e^x-e^-x)/(...

*July 20, 2011*

**Computer Science - MATLAB**

This is the tutorial it's making a reference to h t t p : / / w w w . m a t h w o r k s . c o m / h e l p / t e c h d o c / r e f / r e d u c e v o l u m e . h t m l at least I think it is >_>

*July 20, 2011*

**Computer Science - MATLAB**

Create a stacked contour plot of the MRI data, showing the first, eight, and twelfth layer of the data. An MRI visualization example is shown in the help tutorial. Copy and paste the commands into an M-file and run the example. Be sure to add the clf command before drawing ...

*July 20, 2011*

**Computer Science - MATLAB**

got it <_< forgot the dot and got rid of the axis tight disp('Problem 13.11') x=-2*pi:pi/50:2*pi; y=sin(x); [X,Y]=meshgrid(x,y); z=sin(X)*cos(Y); h=surf(z); set(gca,'nextplot','replacechildren'); shading interp colormap(jet) for a=0:pi/100:8.25*pi...

*July 20, 2011*

**Computer Science - MATLAB**

Same thing. I wounder if I'm suppose to be using the surfz function and not some other 3 dimensional plotting function?

*July 20, 2011*