Posts by james

Total # Posts: 2,499

Math
@ bobpursley no the question did not specify

Math
What can you say about sets A and B if you know that. 1)A U B = A? 2)A n B = A? 3)A - B = A?

science
which part of a plant cell is made of cellulose

feasibility study on banana plantation in nigeria
feasibility study on banana plantation in nigeria

Chemistry
The density of palladium (Pd) is 12.0 g/mL and the cell volume is 5.89???10^?23 mL. Determine the number of atoms in the unit cell. (Because there cannot be a part of an atom in a unit cell, we must round the number of atoms to the nearest whole number.)

math
An apartment building has 15 apartments in it. The tenant association is having a hard time collecting the fees from the tenants with an 0.6 probability of a tenant paying their fees. What is the probability of tenant association collecting fees from 11 out of the tenants ? ...

math
analysis of another rock shows that it contains 60% of its original element; the other 40% decayed into lead. How old is the rock ?

College Physics
1. A construction worker tosses a hammer straight up to a co-worker who is working on a platform above him. The hammer leaves his hand at 7.26 m/sec, and travels 3.33 meters upward, at which point it is caught by the worker on the platform. (It is caught while still moving ...

Physics
A construction worker tosses a hammer straight up to a co-worker who is working on a platform above him. The hammer leaves his hand at 7.26 m/sec, and travels 3.33 meters upward, at which point it is caught by the worker on the platform. (It is caught while still moving upward...

Maths
Round 5,000.083 to three significant figure.

MATHS
A chord 20cm long is 12cm from the center of a circle calculate, correct to one decimal place

chemistry
The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5 oC. The mixture ...

chemistry
The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5 oC. The mixture ...

Economics(help!!!)
A monopolist is deciding how to allocate output between two markets that separated geographically. Demands for the two markets are P1=15-Q1 and P2=25-2Q2.The monopolist's TC is C=5+3(Q1+Q2).What are PRICE,OUTPUT,PROPISTS, MR if a)the monopolist can price discrinate? b)the ...

economics
Define utility using mathmatical expression.

Micoeconomics
Explain the profit maximation conditiond of multi plant monoplist?

maths for business Help!!!
Jacson purchased a house for Birr 50,000. He made an amount of down payment and pay monthly Birr 600 to retire the mortage for 20 years at annual interest rate of 24% compounded monthly. Find mortage down payment interest charged percentage of down payment to selling price.

Math
A real estate salesperson bought promotional calendars and date books to give to her customers at the end of the year. The calendars cost ?$0.750.75 ?each, and the date books cost ?$0.500.50 each. She ordered a total of 500500 promotional items and spent ?$275275. How many of ...

Math
I want to know how to solve this problem7/8×16/21

Mathematics
A cube is divided into six identical square pyramids, each with a perpendicular height (s) that is half the length of the base edge (2s). Show that the volume of each pyramid is one third the volume of a square prism with the same base edge and perpendicular height.

Statistics
if 5 dice are thrown find the probability that at least 3 of them will turn up 6

Science
Acceleration due to gravity on planet mercury 3.7m/s.what would the mass of a person weighing 637 n on mercury

Stat
A squad is made up of 10 privates and 5 privates ?rst class. (a) In how many ways can a detail of 4 privates and 2 privates ?rst class be formed?

Statistics
the probability that A hits a target is 1/4 and the probability that B hits the target id 1/3. if each fires once and the target is hit only once, what is the probability that A hit the target?

Stat
4 different letters are dropped on the floor and then inserted into four differently addressed envelopes. Find the probability that exactly 2 letters are inserted into the proper envelope.

word problem
The admission for a school play is $3.50 for children and $9.00 for adults. on a certain day, 312 people attended the play, and the total money collected from sales was $1884. How many children and how many adults were admitted?

word problem
thank you

word problem
I have no clue on how to set up this equation please help. A car rental company offers two plans for renting a car. Plan A:21 dollars per day and 18 cents per mile Plan B:25.44 dollars per day and 15 cents per mile If you plan to rent the car for one day. and "m" ...

SCIENCE CHEMISTRY
Use the atomic weight of carbon and chlorine to determine the theoretical value of the molecular weight of CH3OH Or methanol.( atomic weights (c=12, cl=35.5).

English
i thought same thing first ty

English
is point of view a literary element or literary technique?

English help
Hey there! Do you still in need for the expository composition? I had to write something similar and all the time I postponed doing it due to the various reasons. The friend of mine told me about Marvelous essay service. You may ask for the help there.

History
I completely agree with Reed. I guess there is more information to extend your essay and to prove your points. Have you tried to search for more information? You may also get the professional help by using the online writing service. I use Marvelous essays site and I think ...

maths
Three numbers are in the ratio 1:3:4. If the difference between the two smaller ones is 10, what are the numbers?

Physics
The number of revolution made by a fly wheel change from 300rpm to1500rpm in 10s.Calculate angular acceleration assuming it to be uniform .Also calculate the number of revolution made during the time?

Social Studies
A A C A D C B A

math
A data set is shown below. x y 1 6.00 2 5.04 3 4.23 4 3.56 5 2.99 6 2.51 7 2.11 Using an exponential best-fit model, what is the residual when x = 1. Round your answer to the nearest hundredth. This is the problem i dont understand line of best fit i dont get at all

math
wrong problem please nobody respond

math
A set of data is shown below. x: –1 0 1 2 3 4 5 y: 3 7 5 6 7 8 Using a line of best fit, what is the value of the residual for the data at x = 2? Round your answer to the nearest thousandth. I dont remember line of best fit if you could please explain this problem.

Math
sorry i meant 111 calories

Math
81 calories

US History
Thanks Ms.Sue for your opinion! Even tho i had to use my own thoughts.

US History
Roosevelt asserted that the expanded reach of the federal government to solve economic problems was not an essential change to the Constitution. Do you agree? Why or why not?

English
We are currently learning about types of communications in my english class, we were each given a question and I need help with mine. 9. You are working in a face-to-face group and one of your group members offers a suggestion which the group decides not to use. The group ...

math
A river flows at the speed of v from west to east. How should a man who is at a point A of the southern bank of the river, which is d meters away from the river, and wants to reach a point B on the northern bank of the river, which is 2d meters away from the river, choose his ...

Math
1) The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code reader. There are 24 errors after 1000 scans. Is it reasonable for the manager to expect less than 5% errors in 1000 scans? 2) Just to be sure, ...

Math
A manufacturer of flea collars for animals that weigh less than 5 kilograms injects the collars with 15 milligrams of a biocide that only acts on fleas. The manufacturer will release a collar that has no less than 14 milligrams and no more than 16 milligrams of insecticide. ...

science
. A runner jumps over a hurdle. Neglecting friction, the potential energy of the runner at the highest point compared to his kinetic energy at the lowest point is

Geometry
"Find the perimeter of the figure, where AC=26, AD=BF, and D is the midpoint of AC. Round your answer to the nearest tenth."

algebra
determine the numerical measure of each angle of parallelogram x+40 3x-20 x= m/_M= m/_I= m/_L= m/_K=

Physics
An anti-aircraft gun fires at an elevation of 60 degree at an enemy aircraft at 10000m above the ground. At what speed must the cannon be shot to hit the plane at that height? (g=9.8)

Math help! Hurry Please~
for 7th graders unit 4 lesson 4 it is a little different. 1D 2C 3D 4B 5B 6A For 7 all you have to do is plug in the values for x and then solve for y For 8 multiply 159 by 3

Social Studies
C D A A B D

SS
Thanks guwop

art
42.68

Math Plz help ASAP
1.C 2. B 3. C 4. b 5. A 100%

Chem
How do peroxides differ from other group of oxide?

basic calculus
A page is to contain 54 square centimeters of printed material. If the margins are 1 cm at the top and bottom and 0.5 cm at the sides, find the most economical width of the page (in cm).

Physics
Explain in detail how you would find the density of an unknown high-density object if you had only the objects listed below.If you show calculations, make sure you define your variables.Assume all containers are large enough to hold the object.... You have: 1. - A spring scale...

Physics
V=m/d I understand how to solve for volume but there doesn't seem to be a definitive mass for air and helium in this answer, can I get some more help please? Or should I just do two equations (1.25=800/v and .18=800/v) but then what do I do? Im a little confused

Physics
You want to carry an 800kg object into the air using a helium balloon. What size of a helium balloon (I'm looking for volume) would be required to accomplish such a task? Assume the density of air is 1.25 kg/m3 and the density of helium is 0.18 kg/m3.

Math
The formula for the volume of a cube is V equals S3 where X represents the side length of the cube find the volume of a cube with side length of 0.5 millimeters

physics
Calculate the rotational inertia of a wheel that has a kinetic energy of 24,400 J when rotating at 677 rev/min. I know that I = mr^2 and that T = Ia; also I calculated 677rpm to be 70.9 radians/sec. But I don't understand how to integrate KE into this.

MATH
it is 7cm and 4 miles

Math
fred is more than 3 years more than twice the age of jane. the sum of their ages is 48. how old is each?

Physics
A car mass of 900kg travelling at 15m/s crashes into a wall and comes to rest in 0.3s. Calculate the average decelaration. Calculate the average force exerted

social studies
The answer are D, C, D, and A

Social Studies
Wrong

science
Calculate the work done in each of the following situations. (a) A horse pulls a wagon with a force of 1200 N and moves it 15 m. (b) A cable lifts an elevator 16 m by using a cable with a tension force of 2500 N. -How much work is required to lift a 35-kg object from the ...

Social Studies
Thanks tessa

Math- Inequalities
Hey, how would I start off solving (x-5)(x+2)<0???

U.S history
what are the powers of Maryland General Assembly and Baltimore city council.

riddle
love

Computing
Pseudocode to describe how to get the information and output the area of a triangle. How do integrated development environment(IDE) help to create maintainable code? Thank you.

Computing
Pseudocode using a repeat-until loop to output the first five square numbers. Thank you.

Computing
Pseudocode to describe how to get the information and output of a triangle. Thank you.

C
Pseudocode: Write a pseudocode to describe how to calculate the average of 10 numbers. Thank you.

Computing
How do features of ide help to create machinable code?

Computing
What is the importance of file standards when including external files on a website page. Thank you.

Physics
An empty bottle weighs 20g and 60g when filled completely with water.What will it weigh when filled completely with mercury? 20÷60=0.3

pre-algebra
6 blank 3 divided by 9 blank 4 + 4=12 what are the blanks

4th Grade Math
Ben is helping plant tulips. He plants bulbs in two rows and has one bulb left over. So he tries again. He plants bulbs in three rows and has one bulb left over. So he tries again. He plants bulbs in four rows and has one bulb left over. So he tries again. He plants bulbs in ...

Social studies
Hey is right

MATH 2
It is found that the number of raisins in a box of a popular cereal is normally distributed, with a mean of 133 raisins per box and a standard deviation of 10 raisins. My cereal box has 147 raisins. What is the z-score for this box of cereal?

science
What was the answer?

Math
what times 35 to make 50

Business Finance
1. What is the actual present value of the lien ($8,000, 30 yrs @ 12% interest – do not calculate simple interest!)? 2. How much will the conservator have after the sale of the property closes?

math
A sphere of radius 7 m is circumscribed about a regular triangular prism. If the base edge of the prism is 1 m, find the volume of the prism (in m3). Round off your answer to four decimal places.

Math
Find the volume of the solid of revolution obtained by revolving the plane region R bounded by y= x^5, the y-axis, and the line y=3 about the x-axis I've gotten 15/7(3^(2/5))pi, but it's not right. Please help

Calculus
Find the volume of the solid of revolution obtained by revolving the plane region R bounded by y= x^5, the y-axis, and the line y=3 about the x-axis So far: y=x^5 is equal to x=5th root y. I've plugged that in to pi(r^2)h, and got V = pi ?[0,3] y^(2/5) dy. so far I've ...

CHECKA Math!
32.4%

Math
Please help someone

Math
I'm rounding to nearest hundred

Math
Four ways to round to 400

Math
what two numbers rounds to 600

Math
I am rounding to nearest 100

Math
What two numbers round to 700

Calculus - Fundamental Thm of Calc
Suppose F(t) is an antiderivative of t^{3}. Then F'(t)= t^3. According to the Second Fundamental Theorem of Calculus, x ? (t^3)dt = ??? 1 Answer using the function F

math
1/2 < -7/10 is this a true statement

Physics
An object is projected from a satellite orbiting 200 km above the surface of the earth. The object has a speed relative to the Earth of 2.85×104 m/s. What is its speed when it is very far from the earth?

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