Tuesday
October 21, 2014

Posts by ben


Total # Posts: 686

math
The ratio of mystery books to the number of science fiction books is 4:3. The number of sci-fi books to the number of biographies is 4:5. If there are 48 sci-fi books what is the total number of books
January 24, 2013

chemistry
TO HAC SOLUTION (02M 100ml) we add NaOH (0.12M 80ml) what is the ph (answer: 4.71)
January 22, 2013

consumer math
idk how to do it
January 14, 2013

Physics
By what amount will a 178 m long concrete slab on the Mackinac Bridge contract when going from +39C to -35C? The linear expansion coefficient is 10-5 per C.
January 9, 2013

problem solving
You purchased 18 karat gold chain that weights 15 grams. How much gold did you purchase in grams? In carats? (1 carat=0/2 grams)
December 11, 2012

problem solving
Okay I was dividing by 3 instead of 9. Got it now, thanks.
December 8, 2012

problem solving
You need to put a carpet in a rectangular room that measures 13 feet by 22 feet as a cost of $19.50 per square yard. Assuming that you can buy precisely the amount of carpet you need, how much will the carpet for the room cost? Demonstrate step-by-step solution. I got $1,858....
December 8, 2012

problem solving
Okay got it. Thank you..
December 8, 2012

problem solving
You wouldn't multiply that answer by 60 ? 36/45 is .8
December 8, 2012

problem solving
Suppose your car gets 36 miles per gallon of gasoline, and you are driving 45 miles per hour. Using unit analysis, find the number of hours it takes to use 1 gallon of gas. I got 48 minutes but I'm not sure.
December 8, 2012

problem solving
Thanks, got it!
December 8, 2012

problem solving
Suppose that two current exchange rates are US $1= 117.9 Japanese yen and 1 Cuban Peso= $.0476. What is the value of 1 peso in Japanese yen?
December 8, 2012

problem solving
Okay I got it now
December 8, 2012

problem solving
I got two different answers from those two different solutions
December 8, 2012

problem solving
Assuming that you breathe once in every 12 seconds, how many breaths do you take in 4 weeks? You must show the use of units.
December 8, 2012

problem solving
Bathtub consumes more water, by 10.88 ft^3
December 8, 2012

problem solving
Suppose water flows from a shower at a rate of 0.38 cubic feet per minute. Do you use more water by taking a 14-minute shower or by filling a bathtub with 0.6 cub yards of water, and by how much? Demonstrate strep-by-step solution.
December 8, 2012

physics
Linc, the 65kg lifeguard, slides down a water slide that is inclined at an angle of 35 degrees to the horizontal, into the community swimming pool. If the coefficient of friction of the slide is 0.050, what is Linc's rate of acceleration as he slides down? -Draw the free ...
November 26, 2012

american government
2. In federalism, the national government (Points : 1)
November 25, 2012

ratio and rate
I think you're missing the point here, Ms. Sue. Math problems do not always have to be scientifically accurate, at least in cases like these.
November 24, 2012

Math
if josh gives Emily 7 apples, she will have 5 times as many apples as Josh. If Emily gives Josh 7 apples, they will have the same number of apples. How many apples does each currently have?
November 20, 2012

Math
You are correct.
November 16, 2012

AP U.S. History
How did the government under the constitution guarantee that people on the frontier would be loyal to it? What was the impact on Native Americans?
November 16, 2012

AP U.S. History
How did the French Revolution highlight the differences between the Federalists and the Republicans?
November 16, 2012

AP U.S. History
What diplomatic problems did the french revolution and the war that followed pose for the united states? How did Washington and Congress deal with this problem?
November 16, 2012

Physics
A small 0.469-kg object moves on a frictionless horizontal table in a circular path of radius 1.42 m. The angular speed is 6.31 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the circle. Someone under...
November 4, 2012

Chemistry
4 and 5
October 29, 2012

physics
When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 68.5-kg man just before contact with the ground has a speed of 5.59 m/s. (a) In a stiff-legged ...
October 23, 2012

Maths-algebraic expression
Using suitable identities evaluate (z-14)(z-1) Please help. thanks
October 20, 2012

Physics
A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 50.0 m/s. The bat does Wnc = 65.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above the point of impact.
October 15, 2012

Linear Algebra
1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.
October 10, 2012

Linear Algebra
1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.
October 10, 2012

Physics - repost
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and swings upward on a ...
October 9, 2012

Physics - repost
A satellite has a mass of 5381 kg and is in a circular orbit 4.30 105 m above the surface of a planet. The period of the orbit is 2.06 hours. The radius of the planet is 4.09 106 m. What would be the true weight of the satellite if it were at rest on the planet's surface?
October 9, 2012

Physics
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and swings upward on a ...
October 9, 2012

Physics
A satellite has a mass of 5381 kg and is in a circular orbit 4.30 105 m above the surface of a planet. The period of the orbit is 2.06 hours. The radius of the planet is 4.09 106 m. What would be the true weight of the satellite if it were at rest on the planet's surface?
October 9, 2012

physics
A motorcycle has a constant speed of 20.8 m/s as it passes over the top of a hill whose radius of curvature is 159 m. The mass of the motorcycle and driver is 387 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the cycle.
October 9, 2012

physics
On a banked race track, the smallest circular path on which cars can move has a radius of 105 m, while the largest has a radius of 175 m, as the drawing illustrates. The height of the outer wall is 18.7 m. Find (a) the smallest and (b) the largest speed at which cars can move ...
October 9, 2012

math
How much simple intrest would 1,000 earn in 275 days at an intrest rate of 4.21 percent?
October 4, 2012

social studies
Ranchos callampas and favelas are all slum areas in
September 19, 2012

Statistics
A survey of 815 students is asked whether or not they have cable TV and Internet cable in their rooms at home. Results of the survey showed that 69% of students has cable TV, 58% of students has Internet cable and 37% of students has both cable TV and Internet cable. Suppose, ...
September 18, 2012

Statistics
Wendy is a randomly chosen member of a large female population, in which 9% are pregnant. Wendy tests positive in a pregnancy test. Pregnancy test correctly identifies pregnancy 95% of the time and correctly identifies non pregnancy 92% of the time. What is the probability ...
September 18, 2012

Math
The following three points are produced by some quadratic function of the form : f(x) = Ax^2 + Bx + C where A; B and C are real numbers and A = 0; they are (1/2,0);(0,10); and (4,0). Find a quadratic function that satisfy es these three points.
September 18, 2012

health
I got alpha
September 18, 2012

Math
Suppose an isosceles triangle has perimeter 10 cm. Find an expression for its area A as a function of the length of its base b (assume that the other two sides are the sides of equal length). What is the domain of A?
September 18, 2012

Physics
An airplane travels at 880 how long does it take to travel 1.50km
September 17, 2012

Chemistry
Four ice cubes at exactly 0 Celsius having a total mass of 55.0g are combined with 120g of water at 77 Celsius in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
September 10, 2012

healthh
i found 6 weeks
September 8, 2012

math (immediate help please)
how many different four digit numbers can be obtained by using all four of these digits 5,1,1,5? show work please
September 6, 2012

algebra
how many different four digit numbers can be obtained by using all four of these digits 5,1,1,5 show work please
September 6, 2012

Math
At a large nursery, a border for a rectangular garden is being built. Designers want the border's length to be 5 ft greater than it's width. A maximum of 180 ft of fencing is available for the border. Write and solve an inequality that describes possible widths of the ...
August 30, 2012

nervous system
Blood
August 26, 2012

math
Oh I got it never mind thanks Ms.Sue!
August 22, 2012

math
If you don't want to tell me I understand thanks anyway 2 detentions for me then :'(
August 22, 2012

math
I don't k ow how and I have a huge report to do so I need the answer please
August 22, 2012

math
What's the quickest way for an ant to go from the ground to the tree trunk?
August 22, 2012

Math
The left side can be -3 or 3 since the absolute value of -3 is 3. Therefore this can be split in to 2 equations: x^2-3x+3=3 Which simplifies to, x^2-3x=0 and, x^2-3x+3=-3 Which simplifies to, x^2-3x+6=0 Try to solve these and check the discriminant to find the possible solutions.
August 17, 2012

physics
A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
August 13, 2012

Science
How about if they are a good runner?
August 13, 2012

Science
Would "boy" consider a trait?
August 13, 2012

physics
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 ° below thehorizontal just before it strikes a horizontal surface. The ball leaves this surface 0.50 slater with a velocity of 2.0 m/s directed 60 ° above the horizontal. What is themagnitude of ...
August 12, 2012

physics
An orbiting spacecraft is described not as a "zero-g" but rather as a "microgravity" environment for its occupants and for onboard experiments. Astronauts experience slight lurches due to the motions of equipment and other astronauts and due to venting of ...
August 10, 2012

health
I got blaming
August 4, 2012

English- directions
Ok thanks! And yes the last word is mind probes.
August 4, 2012

English- directions
Can you rephrase the directions in a way that I can tell what it means because I don't really understand the directions its telling me to do: In a short paragraph, explain as throughly as possible the significance of the word or phrase. The Big Shake Eden Mindphrobes.
August 4, 2012

health!
I got distorting
August 3, 2012

health
I got energy correct on mine
July 28, 2012

physical science
a magnet connot be made by
July 16, 2012

English
Joe's speech was incoherent. He made up words and talked so fast that no one could understand him. Incoherent means: a. hard to understand b. fluent c. illiterate d. stuttering I can't decide between A , C, or D
July 14, 2012

computer science
Using the Crow’s Foot notation, create an ERD that can be implemented for a medical clinic, using the following business rules:  A patient can make many appointments with one or more doctors in the clinic, and a doctor can accept appointments with many patients. ...
June 27, 2012

Pre algebra
Tasha has a savings account which earn 8% interest. If she has $1400 in her account, how much interest will she earn in one year? I got $112.00 but it doesn't look right.
June 24, 2012

international trade
2. Consider two countries, Home and Foreign. Assume that Home is labor-abundant while Foreign is land-abundant. Also suppose that there are two industries, wine and cheese, with wine being the more labor-intensive industry. a) Suppose that both wine and cheese industry produce...
May 24, 2012

Math/Prob
Claire takes a five-question true-false test. She hasn't studied, so she guesses at random. With her ESP she figures she has a 60% probability of getting any one answer wrong. A. What is the probability of getting an answer wrong? (Do you think they want me to ignore the ...
May 23, 2012

physics
a go cart starts at rest and accelerates to 40 m/s in 200m what is the acceleration of the cyclist?
May 23, 2012

physics
a go-cart starts and accelerates to 40 m/s in 200m. what is the acceleration of the go-cart?
May 23, 2012

physics
A cyclist starts at rest and accelerates to a speed of 20 m/s in 5 s. what is the acceleration of the cyclist?
May 23, 2012

physics
a car travels 50 meters in 1 second. what is the car's velocity?
May 23, 2012

chemistry
Mass is lost or gains in a.) all chemical reactions b.) all nuclear fission reactions c.) all nuclear fusion reactions d.) all chemical and nuclear reactions my guess is B
May 20, 2012

international trade
From the economic point of view, India and China are somewhat similar: both are huge, low-wage countries, probably with similar patterns of comparative advantage, which until recently were relatively closed to international trade. China was the first to open up. Now that India...
May 10, 2012

Math
Thank you!
May 7, 2012

Math
You run pizza shop and have 8 different toppings that a customer can order. The customer can order any combination of topping including none but they cannot have double of any toppings. How many different pizza combinations can be ordered?
May 7, 2012

Geometry
A flush tank on a toliet is rectangular with dimensions of 21 in. by 6.5 in. and contains water to a depth of 12 in. How many gallons of water per flush will be saved if the depth of water is reduced by one third? (231 in^3 per gallon.)
May 4, 2012

chemistry
what concentration of hydroxide ion ust be exceeded in a .01M solution of nickel(II) nitrate in order to precipitate nickel (II) hydroxide?
May 1, 2012

math
A building has 4 stories that are each 15 feet high. A scale drawing has the height of the building at 5 inches. Which of the following is the correct scale?
April 16, 2012

geometry
I'm not understanding
April 13, 2012

health
I got C correct on my test
April 11, 2012

algebra 2
The formula d=1.35ãh models the distance d in miles from the horizon where h is the distance in feet from a personfs eyes to the water. If you are standing in a boat and the distance from the water to your eyes is 8 ft, what is your distance from the horizon...
March 29, 2012

physics
The force on a wire is a maximum of 6.00\times 10^{ - 2} {\rm{N}} when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is ...
March 25, 2012

chemistry
Did you figure out how to answer this?
March 23, 2012

investment
A bond currently sells for $1,250, which gives it a yield to maturity of 7%. Suppose that if the yield increases by 22 basis points, the price of the bond falls to $1,228. Required: What is the duration of this bond?
March 15, 2012

Physics
Pilots can be tested for the stresses of flying high-speed jets in a whirling "human centrifuge," which takes 1.8 min to turn through 21 complete revolutions before reaching its final speed. 1. What is the angular acceleration?(rev/min^2) 2. What is the final angular...
March 5, 2012

14
I got D
March 4, 2012

12
I got A
March 4, 2012

Math
4 loaves of bread cit into 10 slices. 18 people eat 2 slices. What is the fraction that shows how much bread was eaten
March 1, 2012

Trig
Use a calculator to find θ to the nearest tenth of a degree, if 0° < θ < 360° and csc(θ)=1.4307 with θ in QII θ=?
February 28, 2012

Maths
y=1/x-3 - 4 state the domain and range, at first I though domain would be R (any real number) and range would be R also? I'm not sure
February 25, 2012

Science
temperature
February 21, 2012

physics
A 820-{\rm kg} sports car collides into the rear end of a 2700-{\rm kg} SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 3.0 {\rm m} before stopping. The police officer, estimating the coefficient of kinetic friction between ...
February 20, 2012

physics
A 820-{\rm kg} sports car collides into the rear end of a 2700-{\rm kg} SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 3.0 {\rm m} before stopping. The police officer, estimating the coefficient of kinetic friction between ...
February 20, 2012

math
determine the angular velocity if 11.3 revolutions are completed in 3.9 seconds
February 19, 2012

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