Thursday

November 26, 2015
Total # Posts: 487

**Geometry**

Kristen lives directly east of the park. The football field is directly south of the park. The library sits on the line formed between Kristen’s home and the football field at the exact point where an altitude to the right triangle formed by her home, the park, and the ...
*January 20, 2012*

**Geometry**

A triangle has side lengths of 18 cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right.
*January 20, 2012*

**geometry**

The volume of a sphere is 2,098 m3. What is the surface area of the sphere to the nearest tenth? 1,700m2 146.2m2 850m2 26,364m2
*January 12, 2012*

**math**

a school playground is in the shape of a rectangle 700 feet long and 200 feet wide. if fencing cost 20 dollars per yards what will it cost to place fencing around the playground
*January 11, 2012*

**Physics**

(a) From ground, h=2.30m so: PE=mgh =1.70kgx9.8m/sx2.30m = 38.3J (b)The person is shorter than the distance at which he holds the book from the ground so: 2.30-1.60=0.7m Use the same formula, just substitute 0.7 in for h. (c)The work in this case is the potential energy of the...
*December 7, 2011*

**geometry**

The sides of a parallelogram are 25 cms and 15 cms.The height to the 25 cms side is 15 cms.What is the speciality of this parallelogram ?
*November 30, 2011*

**physics**

The drawing shows a boat being pulled by two locomotives through a canal of length 2.50 km. The tension in each cable is 5.00 103 N, and è = 19.0°. What is the net work done on the boat by the two locomotives?
*November 16, 2011*

**math**

there are seven pies if i take away 2 1.3 how many are left
*October 20, 2011*

**English**

those sentences seem great to me. With num 3 use (able). Try also to make your sentences as interesting as possible.
*October 15, 2011*

**Precal**

Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that A1 is smaller than A2.)
*October 10, 2011*

**Physics**

30.24m/s
*September 17, 2011*

**Intergrated Algebra**

I kinda forgot about radicals over the summer.What is Radical 79 over 3? How would you plot that?
*September 7, 2011*

**geometry**

find the value of x and bc if b is between c and d cb=4x-9 bd=3x+5 cd=17
*August 30, 2011*

**physics**

A 88-kg astronaut and a 1200-kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with the shuttle.What was ...
*August 20, 2011*

**college algebra**

A musician is planning to market a CD. The fixed costs are $1260 and the variable costs are $5 per CD. The wholesale price of the CD will be $11. For the artist to make a profit, revenues must be greater than costs. How many CDs, x, must be sold for the musician to break even?
*July 26, 2011*

**college algebra**

find a general term for the sequence a1,a2,a3,a4..... 15,23,31,39
*July 26, 2011*

**college algebra**

(x^2/3)^7/2 simplify and express answer using positive exponents only
*July 26, 2011*

**college algebra**

solve x^2e^x+9x^ex=0
*July 25, 2011*

**college algebra**

e^-3-1x+22=0
*July 25, 2011*

**college algebra**

find all vertical and horizontal asymptoles f(x)=4x/x^+1
*July 25, 2011*

**college algebra**

the population of a certain geographic region is approximately 105 million and grows continuously at a relative growth rate of 1.53%. what will the population be in 5 years?
*July 25, 2011*

**college algebra**

how long would it take $3,100 to grow to $8,800 if the annual rate is 3.5% and interest is compounded monthly? please help
*July 25, 2011*

**Pre Cal**

the function y= tan (x/3) has an x intercept at?
*July 24, 2011*

**persuasive essay **

An easy way to answere this is to go on word prosser then go to tools and get on spelling and grammer it works great. ash
*June 17, 2011*

**algebra1**

(2x^2+3x-15) divided by (x-3)
*June 7, 2011*

**math**

a class consists of 14 men and 16 women. A group of 5 is randomly chosen a) the probability of this group containing at least 2 women and at least 2 men? b) probability the group contains the same gender.
*June 5, 2011*

**College Mathmatics**

Fill in the blank with the correct symbol to make the resulting inequality true. 4 4/3____ 4 1/2 A-> B-< C-< (with a line under it) D-> (with a line under it)
*May 10, 2011*

**College Mathmatics**

Thank u so much, this is the 1st lesson in this class, and my 1st math lesson in college period, and im 26, so im a little out of the loop and extremely confused when it comes to math. Thank u so much. Would u mind explaining it to me pls?!
*May 10, 2011*

**College Mathmatics**

Multiply; then reduce to lowest terms: 5 1/2 . 3/4
*May 10, 2011*

**differential calculus**

use the product rule to find the derivatives of the given function y=(3x^2-8)^2
*April 30, 2011*

**business**

CheckPoint: Calculating Fixed Costs, Variable Costs, and Break-Even Point for a Program • Calculate the fixed cost, variable costs, and break-even point for the program suggested in Appendix D. • Base your calculations on the financial data for 2002. Appendix D. XYZ...
*April 22, 2011*

**accounting**

anyone please??
*April 10, 2011*

**accounting**

A company purchased $4,000 worth of merchandise. Transportation costs were an additional $350. The company later returned $250 worth of merchandise and paid the invoice within the 2% cash discount period. What is the total amount paid for this merchandise is?
*April 10, 2011*

**math(rate of change)**

how did it become 48?
*April 9, 2011*

**math(rate of change)**

nope im not :( and my teacher doesn't explain well...thank you! i've been trying to figure out how to come up with the asnwer but gosh i couldnt thank you again!
*April 9, 2011*

**math(rate of change)**

find the average rate of change f(x)=x^2 + 2x between x=0 and x=6 can anyone please help me explain why the answer is 8? thank you!
*April 9, 2011*

**linear programming app**

solve this linear programming problem; A chain saw requires 4 hours of assembly and a wood chipper 6 hours. A maximum of 48 hours of assembly time is available. The profit is $150 on a chain saw and $220 on a chipper. How many of each should be assembled for maximum profit?? ...
*April 6, 2011*

**physics**

0.26
*April 6, 2011*

**math**

solve this linear programming problem; A chain saw requires 4 hours of assembly and a wood chipper 6 hours. A maximum of 48 hours of assembly time is available. The profit is $150 on a chain saw and $220 on a chipper. How many of each should be assembled for maximum profit?? ...
*April 5, 2011*

** math**

1.632
*April 5, 2011*

**accounting**

Santa Fe Company purchased merchandise for resale from Mesa COmpany with an invoice price of $24,000 and credit terms of 3/10,n/60. The merchandise had cost Mesa $16,000. Santa Fe paid within the discount period. Prepare entries that Santa Fe Company should record for the ...
*April 4, 2011*

**linear programming app**

write the constraints as linear inequalities and identify all variables used. A canoe requires 8 hours of fabrication and a rowboat 5 hours. The fabrication department has at most 110 hours of labor available each week
*April 3, 2011*

**math i need help plz!**

A store sells televisions for $360 and video cassette recorders for $270. at the beginning of the week its entire stock is worth $45,990. During the week it sells three quarters of the televisions and one third of the video cassette recorders for a total of $27,630. How many ...
*March 29, 2011*

**math could anyone help me plz?:[**

wow! sure is. thanks so much sir! :]
*March 28, 2011*

**math could anyone help me plz?:[**

you have a $5841 credit card debt, and you plan to pay it off through monthly payments of $71. if you are being charged 14% interest per year, how long will it take you to repay your debt?
*March 28, 2011*

**math**

you have a $5841 credit card debt, and you plan to pay it off through monthly payments of $71. if you are being charged 14% interest per year, how long will it take you to repay your debt?
*March 28, 2011*

**math**

you have a $5841 credit card debt, and you plan to pay it off through monthly payments of $71. if you are being charged 14% interest per year, how long will it take you to repay your debt?
*March 27, 2011*

**math**

at the end of every 3 months, Rita deposits $100 into an account that pays 5% compounded quarterly. After 5 yrs, she puts the accumulated amount into a certificate of deposit paying 8.5% compounded semiannually for 1 yr. when this certificate matures, how much will Teresa have...
*March 27, 2011*

**algebra**

are you asking for the slope and y-intercept to graph slope= -3/5 and y-int=3
*March 27, 2011*

**math**

A system of equations can result in 3 possibilities: consistent, inconsistent, and dependent. Discuss each of these types of solution that can be generated, and describe the graph of each possibility.
*March 13, 2011*

**math**

If tow sides of a triangular flag are content, which of the following words can not be used describe the shape of the flag? a. Obtuse b. Acute c. Scalene d. Equilateral
*March 7, 2011*

**Math**

1/46656 How to figure this out? Go to: google Type in: Rolling 6 dice, what is the probability of rolling six of a kind? click on the first link which should be: What are the odds of rolling 6 of a kind on a six sided die...
*March 4, 2011*

**Physics**

A = v^2/r A = (1.70*10^4)^2/(5.30*10^6) A = 54.53 A = G(m/r^2) m = A*r^2/G G = 6.67*10^-11 m = 54.53*(5.30*10^6)^2/6.67*10^-11 m = 2.30*10^25 ------------------------------------ A = G(m/r^2) A = 6.67*10^-11(2.30*10^25/(8.70*10^6)^2) A = 20.27 A = v^2/r (A*r)^(1/2) = v v = ...
*March 4, 2011*

**Physics**

Newton's law of universal gravitation: where force equals the universal constant of gravity multiplied by mass of the earth and mass of an object divided by the raduis squared F = G((m1*m2)/(r^2)) Force equals the mass of an object multiplied by the acceleration or 'g...
*February 24, 2011*

**world history**

what was the first hr on the titanic atmoshere like
*February 23, 2011*

**Physics**

A 37 kg child roller skates, initially at rest, rolls 2.0 m down an incline at an angle of 17 degrees with the horizontal. If there's no friction, what is the kinetic energy of the child at the bottom of the incline?
*February 3, 2011*

**Physics**

A 37 kg child roller skates, initially at rest, rolls 2.0 m down an incline at an angle of 17 degrees with the horizontal. If there's no friction, what is the kinetic energy of the child at the bottom of the incline?
*February 3, 2011*

**Physics**

What is the average power output of a weightlifter who can lift 260 kg to a height of 1.9 m in 1.8 seconds?
*February 3, 2011*

**Physics**

A 37 kg child roller skates, initially at rest, rolls 2.0 m down an incline at an angle of 17 degrees with the horizontal. If there's no friction, what is the kinetic energy of the child at the bottom of the incline?
*February 3, 2011*

**algrebra 1**

The difference of 5 times a number is 27. Which equation below can be used to mind the unknown number?
*February 3, 2011*

**Math**

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.
*February 2, 2011*

**math**

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.
*February 2, 2011*

**Math- Please Help!!**

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.
*February 2, 2011*

**Math**

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.
*February 2, 2011*

**Math**

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.
*February 1, 2011*

**College Chem PLEASE HELP**

A 3.50 liter ballooncontains air at 65% relative humidity at 22 degrees C at 1.0 atm pressure. A small peice of Na metal is introduced to the balloon to remove all of the water vapor. What would the new volume be for the dry air in the balloon?
*January 31, 2011*

**chemistry**

e. copper ions, nitrate ions, and water. a and b are eliminated because copper and nitrate turn out to be aqueous due to solubility rules. that leaves you with b, c, and e. with these types of problems, you'll never end up with electrons as the answer, it'll only ask ...
*January 28, 2011*

**statistics**

what is average for the following numbers 65 49 24 15
*January 26, 2011*

**English**

What is the theme of "Abalone, Abalone, Abalone" by Toshio Mori?
*January 23, 2011*

**trig**

It is false. The smaller angle can have a greater value.
*January 20, 2011*

**physics**

Thanks!I get it now. I had gotten the normal force, but I wasnt sure how to get the force of friction, but this helps.
*January 20, 2011*

**physics**

A couch with a mass of 100 kg is placed on an adjustable ramp attached to a truck. As one end raises, the couch begins to move downward. If it sldes with an acceleration of .79 m/s^2 at 12 degrees, what is the coefficient of kinetic friction. I still am having troubles with ...
*January 20, 2011*

**Physics**

Ok, thats what I got but I wasnt sure if it was correct. Thanks so much!
*January 20, 2011*

**Physics**

Someone attaches a 27 kg bale of hay to one end of a rope passing over a frictionless pulley connected to a beam in a hay barn. Someone else pull down on the opposite en of the rope with a force of 397 N. Ignoring the mass of the rope, what will be the magnitude and directionf...
*January 20, 2011*

**Physics**

I dont think I did it correctly. I got a very very small number.
*January 20, 2011*

**Physics**

A coach with a mass of 100 kg is placed on an adjustable ramp attached to a truck. As one end raises, the couch begins to move downward. If it sldes with an acceleration of .79 m/s^2 at 12 degrees, what is the coefficient of kinetic friction. I think I found the normal force, ...
*January 20, 2011*

**english**

this is not unethical. There is no ethical boundary, per se, for advising another co-worker of their work practices. An ethical issue may arise however if I shared that information with that co-worker and I wasn’t supposed to know /share (ie. a supervisor told me in ...
*January 19, 2011*

**english**

Is it ethical telling an associate and close friend that she should pay more attention to her work responsibilities, or management will fire her please explain why?
*January 19, 2011*

**Math**

solve log(b4)x-log(b4)2=2 (b4)=base 4
*January 10, 2011*

**Pre-Calc**

Solve the equation. (tan^2)3x=3
*December 29, 2010*

**trigonometry**

solve: 2cosx-1=0
*December 15, 2010*

**maths**

find the area of a square ABCD 16 square meter.find the area of the area joining mid points of the side
*December 12, 2010*

**Math**

A bolt weights about 2/5 ounce. True or false The expresion 48 divided by 2/5 could be used to find the number of bolts in a 3 pound box
*December 2, 2010*

**Math**

A bolt weights about 2/5 ounce. True or false The expression 48 divided by 2/5 could be used to find the number of bolts in a 3-pound box
*December 2, 2010*

**Chemistry**

When determining boiling points, why would you need to repeat your experiment if your sample completely vaporized before you were able to obtain a constant temperature?
*December 1, 2010*

**Chemistry**

When determining boiling points, why would you need to repeat your experiment if your sample completely vaporized before you were able to obtain a constant temperature?
*December 1, 2010*

**Chemistry**

you were asked to determine the melting point of an unknown compound in order to identify at as one of the compounds you had previously examined. What else could you have done to make sure that your unknown was indeed the compound you believed it to be, and not just a compound...
*December 1, 2010*

**Chemistry**

In the determination of melting points, why cant you use water instead of mineral oil?
*December 1, 2010*

**Chemistry**

How will the boiling point of a substance be affected by increasing the atmospheric pressure? How will the boiling point of a substance be affected by decreasing the atmospheric pressure?
*December 1, 2010*

**Math**

actually i have a question is that 1 big problem or 4 different ones???
*November 30, 2010*

**art**

a positive bias
*November 24, 2010*

**Statistics**

hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard deviation and mean. for the question my ...
*November 21, 2010*

**math**

hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard deviation and mean. for the question my ...
*November 21, 2010*

**statistics**

hi, how would i calculate the standard deviation of the following sampling distribution of means. apparently this is the longhanded way of calculating standard error. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11 (2, 2) ... 2 (2, 3) ... 2.5 (2, 6) ... 4 (...
*November 21, 2010*

**statistics**

what is meant by the standard error of a statistic? what is it an index of? what is meant by the standard error of the mean? what it is an index of?
*November 21, 2010*

**statistics**

what is sampling distribution and sampling distribution of means?
*November 21, 2010*

**statistics**

what is random sampling and why is it important to statistical inference with reference to representativeness and error?
*November 21, 2010*

**Math**

i have a question regarding statistics. i just don't know how to do it and would really appreciate if someone could tell how i can solve it. the question is; a) compute the mean and the standard deviation of the population? ive looked through all my notes and my textbook ...
*November 21, 2010*

**statistics**

i have a question regarding statistics. i just don't know how to do it and would really appreciate if someone could tell how i can solve it. the question is; a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11 a) there are 5x5=25 different samples of two ...
*November 20, 2010*

**Chemistry**

If the pH of grapefruit is 3 and the pH of beer is 5, how many times more acidic is the grapefruit juice than the beer? According to the logarithmic scale
*November 10, 2010*