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Posts by Ben

Total # Posts: 1,001

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

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

consumer math
idk how to do it

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.

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)

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

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....

problem solving
Okay got it. Thank you..

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

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.

problem solving
Thanks, got it!

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?

problem solving
Okay I got it now

problem solving
I got two different answers from those two different solutions

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.

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

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.

physics
a) Use the formula E = (1/2) I w^2, where w is the angular speed in rad/s and I is the moment of inertia. (b) Time = (Full speed energy)/Power You will have to convert horsepower to Watts when using the formula

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 ...

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

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.

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?

Math
You are correct.

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?

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

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?

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...

Chemistry
4 and 5

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 ...

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

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.

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.

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.

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 ...

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?

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 ...

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?

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.

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 ...

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

physics
1. A man walks 10km east and 20km south the displacement of the man from initial position 2. In figure below R= 30, find x and Y respectively.

social studies
Ranchos callampas and favelas are all slum areas in

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, ...

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 ...

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.

health
I got alpha

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?

Physics
An airplane travels at 880 how long does it take to travel 1.50km

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?

healthh
i found 6 weeks

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

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

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 ...

nervous system
Blood

math
Everyday im hustlin ms sue sucks

math
Oh I got it never mind thanks Ms.Sue!

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

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

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

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.

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?

Science
How about if they are a good runner?

Science
Would "boy" consider a trait?

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 ...

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 ...

health
I got blaming

English- directions
Ok thanks! And yes the last word is mind probes.

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.

health!
I got distorting

health
I got energy correct on mine

physical science
a magnet connot be made by

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

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. ...

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.

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...

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 ...

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

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

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?

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

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

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...

Math
Thank you!

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?

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.)

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

Chemistry
cacl2

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?

geometry
I'm not understanding

health
I got C correct on my test

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...

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 ...

chemistry
Did you figure out how to answer this?

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?

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...

14
I got D

12
I got A

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

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=?

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

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