Thursday
October 23, 2014

Posts by peter


Total # Posts: 871

Physics 203
Car 1 has 6 times the mass of car 2, but only 0.4 as much kinetic energy. What is the ratio between the speeds of the two cars (v1/v2)? You must type your answer as a numerical value.
October 8, 2014

economic
Is the south african government is not providing enough welfare or subsidies to the poor and underpriviledged?
August 19, 2014

maths
A motorist travels 120 miles to his destionation at an average speed of 60 miles per hour and returns to the starting point at an average speed of 40 miles per hour.His average speed for the entire trip is 1. 53 miles per hour 2. 52 miles per hour 3. 50 miles per hour 4. 48 ...
August 13, 2014

maths
answer 3. 3 inches
August 13, 2014

maths
A snapshot measures 2 1/2 inches by 1 7/8 inches. It is to be enlarged so that the longer dimension will be 4 inches.The length of the enlarged shorter dimension will be 1. 2 1/2 inches 2. 2 5/8 inches 3. 3 inches 4. 3 3/8 inches 5. 3 5/8 inches
August 13, 2014

maths
If a @ b is defined for all positive integers a and b by the equation a @ b = a(b-a),then 4 @ (3 @ 5)= 1. 2 2. 6 3. 8 4. 22 5. 28
August 13, 2014

maths
If r boxes of rubber bands cost d dollars,how much do 7 boxes cost at the same rate? 1. 7dr 2. 7d/r 3. d/7r 4. r/7d
August 11, 2014

maths
What is the maximum number of cubes with a side of length 1/3 that can fit inside a cube with a side of length 1 ? 1.3 2.9 3.18 4.27
August 11, 2014

maths
Beth is two years older than Julio.Gerald is twice as old as Beth.Debra is twice as old as Gerald.The sum of their ages is 38.How old is Beth? (1)2 (2)3 (3)5 (4)6 (5)8
August 10, 2014

maths
the base: 7-3=4 the high: 5-1=4 so, base x high / 2 4 x 4 /2 = 8 answer b, am i right
August 10, 2014

maths
that's triangle, on the right top(8,5),on the bottom left (3,1),bottom right(7,1) 1. 6 2. 8 3. 10 4. 12 5. 14 anybody can answer this question
August 10, 2014

maths
y ./////////////////////////////////////// ./////////////////////////////////////// .//////////////////O(8,5)/////////////// .////////////////OOO//////////////////// .//////////////OOOOO//////////////////// .////////////OOOOOO///////////////////// ./////(3,1)OOOOOOOO(7,1...
August 10, 2014

maths
y .----------------------- .----------------------- .______________________.(8,5) .__________________..... .______________......... .____________........... .____(3,1)..............(7,1) 0 _________________________________x . . .
August 10, 2014

maths
y . . . .(8,5) . . . . . . . . . . . . . (3,1) ....................(7,1) 0..................................x . .
August 10, 2014

maths
y .(8,5) (3,1) . .(7,1) 0 x What is the area of the triangle in the figure above?
August 10, 2014

maths
8 pies ,thank you
August 10, 2014

maths
The Cooking Club made some pies to sell at a basketball game to raise money for the new math books.The cafeteria contributed four pies to the sale.Each pie was then cut into five pieces and sold.The were a total of 60 pieces to sell.How many pies did the club make?
August 10, 2014

maths
may i ask is it include 13, if include 13, the answer is 148
August 10, 2014

maths
I know that, 22, 40, 76, 148, 292 the fifth is 292 but the answer is 1.18 2.40 3.76 4.148 5.196
August 10, 2014

maths
In a list of numbers that starts with the number 13, every number is 4 less than twice the number that comes just before it.What will the fifth number in the list be?
August 10, 2014

math
If 3= 9b/a ,What is a/b equal to ?
August 2, 2014

math
is it 3 / 1/4 = 12 ?
July 24, 2014

math
could you show me how to do it
July 24, 2014

math
A compact disc is placed in a player that randomly selects and plays songs from the disc.The compact disc contains 3 ballads, 4 instrumental pieces,X dance tracks and no other pieces.If the probability that the first song played will be a ballad is 1/4,what is the value of X?
July 24, 2014

math
Only three canoes are offered, the Iroquois, Chippewa, and Winnebago, which cost $1,100,$1,400, and $2,100, respectively. Each canoe also comes as a kit and costs $450, $550, and $800 respectively. Custom paddles are also available and cost $45 and $75, for medium and large ...
July 24, 2014

Statistics
Blood samples from 10 persons were sent to each of two labs for cholesterol determination. The measurements are recorded below: Table 1. Serum Cholesterol measurements of Lab 1 and Lab 2 Subject Lab 1 Lab 2 1 296 318 2 268 287 3 244 260 4 272 279 5 240 245 6 244 249 7 282 294 ...
July 21, 2014

math
Evaluate: 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8
July 19, 2014

math
why use 1/2 , because 2 hours half
July 18, 2014

math
Jack and Jerry can complete a job in 2 hours when working together.If Jack requires 6 hours to finish the job alone,how many hours does Jerry need to finish the job alone?
July 18, 2014

math
sorry, I make a mistake, thank you
July 17, 2014

math
TT 4^2 x 18 TT 16 x 18 268 TT
July 17, 2014

math
Craig made a cylinder-shaped sand candle.The radius of it base is 4 cm, its height is 18 cm.How many cubic centimeters of sand did he use?
July 17, 2014

math
One package of water plants is recommended for 3000 cubic centimeters of water in a fish tank.How many packages of plants will be needed for a 45 cm by 70 cm tank that is filled to a depth of 10 cm?
July 17, 2014

math
thank you, I understand now
July 17, 2014

math
Lena plans to fill her 22-cm cube to within 2 cm of the top.How many cubic centimeters of dirt will Lena need?
July 17, 2014

math
Each term in a sequence of numbers, except for the 1st term, is 2 less than the square root of the previous term.If the 3rd term of this sequence is 1, what is the first term?
July 17, 2014

Math
vacuum cleaner was purchase on the installment plan with 12 monthly payments $36.98 each. If the cash price was $415 and there was no down payment , find the annual percentage rate.
July 6, 2014

math
In how many different ways can five students be seated in three chairs? 5 x 4 x 3 =60 am I right?
July 4, 2014

math
2+3=5,2+5=7,2+7=9,2+11=13,2+13=15,2+17=19, 3+5=8, 3+7=10, 3+11=14, 3+13=16, 5+7=12, 5+11=16, 5+13=18, 7+11=18 So, is 14 am i right?
July 4, 2014

math
how many positive intergres less than 20 are equal to the sum of two different prime number?
July 4, 2014

Math
Malinda Levi borrows 90 day note. On the 30th day, Malinda pays on the note. If ordinary interest is applied, what is Malinda’s adjusted principal after the partial payment? What is the adjusted balance due at maturity?
July 4, 2014

Math
Find the discount (ordinary interest) and proceeds on a promissory note for $2,000 made by Barbara Jones on February 10, 2007, and payable to First State Bank on August 10, 2007, with a discount rate of 9%.
July 4, 2014

Math
Myrna Lewis wishes to have $4,000 in four years to tour Europe. How much must she invest today at 8% interest compounded quarterly to have $4,000 in four years?
July 4, 2014

math
charge account with MasterCard. Her credit limits is $ 1,000, but she not charged that much since opening the account. Nancy hasn't had the time to review her monthly statement promptly as she should, but over the upcoming weekend she plans to catch up on her work. She has...
June 28, 2014

math
Nancy Tai has recently opened a resolving charge account with MasterCard. Her credit limits is $ 1,000, but she not charged that much since opening the account. Nancy hasn't had the time to review her monthly statement promptly as she should, but over the upcoming weekend ...
June 26, 2014

math
Barry heard in his Personal Finance class that he should start investing as soon as possible. He had always thought that it would be smart to start investing after he finishes college and his salary is high enough to pay the bills and to have money left over. He projects that ...
June 26, 2014

math
If there are 20 to 25 apples in a basket and there are 3 to 4 baskets in a bushel, what is the minimum number of bushels that can be filled by 1000 apples?
June 5, 2014

math
thank you
May 22, 2014

math
In a recent civil service examination, 1/8 of the candidates failed the first part of the test.Of those eligible to take the second part of the competive examination, 2/7 successfully passed.What part of the original candidates were successful in the examination?
May 22, 2014

math
1. 9/11 2. 1/6 3. 2/11 4. 3/22 5. 1/22
May 22, 2014

math
Jonathan has 1/3 as many green marbles as he has red marbles and 1/6 as many red marbles as he has yellow marbles.What part of his collection is made up of yellow marbles?
May 22, 2014

english 3
Which is the best restatement of the following sentence? Right or wrong, I assumed this ground, and now avow it
May 15, 2014

math
Rules useful in handling problems involving inequalities follow.
May 15, 2014

math
Inequalities Some Important Facts
May 15, 2014

math
A straight line is the shortest distance between two points. In a triangle, the sum of two sides of the triangle is greater than the third side. Also, a perpendicular drawn from a point to a line is the shortest distance from the point to the line.
May 15, 2014

math
Rules useful in handling problems involving inequalities.
May 15, 2014

math
Inequalities some Important Facts
May 15, 2014

math
If two angles of a triangle are unequal, the sides opposite these angles are unequal, and the greater side lies opposite the greater angle.
May 15, 2014

Matth
I have 18 blue marbles, 16 green marbles, and 22 red marbles in a bag. What is the chance I will pick a green if I pick a marble at random?
May 12, 2014

science
a cylinder of diameter 1cm at 30 degrees celcius is to be slid into a steel plate. the hole has a diameter 0.9997cm at 30 degrees celcius. to what temperature must the plate be heated? for steel
May 12, 2014

math
What is the value of the expression a / uv if a, u, and v are each doubled 1. multiplied by 2 2. multiplied by 3. divided by 2 4. divided by 4 5. left unchanged
May 11, 2014

math
20,000 answer 4, thank you
May 11, 2014

math
0.0357 x # = 357 x 2,# = 1. 200 2. 200,000 3. 2,000 4. 20,000 5. 7,140
May 11, 2014

math
R and T are points on straight line PQ on which PR = RT =TQ. what percent of PT is PQ ?
May 10, 2014

math
If 20 teachers in a faculty of 80 are transferred,what percent of the original faculty remains?
May 10, 2014

math
Bentley Plastics Ltd. has annual fixed costs of $450,000 and variable costs of $15 per unit. The selling price per unit is $25. What will be the annual net income at annual sales of: 50,000 units? $1,000,000?
May 2, 2014

Chemistry
I got to 1.62 = sqrt(M unknown/M O2) I know that the molar mass of O2 is 32 So I squared both sides of the equation to get 2.6244 = M unknown/ 32g O2 Multiplied 2.6244 x 32 = 83.98g/molunknown
April 15, 2014

Chemistry
Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 4.92 mL of O2 had passed through the membrane, but only 3.04 mL of of the unknown gas had ...
April 15, 2014

Algebra
the longer legs of a right triangle is 20 cm more than twice the length of the shorter leg. The length of the hypotenuse is 22 cm more than twice the length of the shorter leg. Find the side lengths of the triangle
March 30, 2014

economics
What about this one? QUESTION: In this case, what is the difference between the optimal level of total consumption and the level of total consumption in equilibrium?
March 23, 2014

physics
If a cart is initially travelling at 3.5 m/s, and has a mass of 200g, what is it's kinetic energy (LEAVE OUT units of J)?
March 20, 2014

CALCULUS ECONOMICS
QUESTION: In this case, what is the difference between the optimal level of total consumption and the level of total consumption in equilibrium?
March 13, 2014

Hillsdale
difference in resultant vs. equilibrant force
March 9, 2014

Engineering science
A brick with a mass of 6kg is dropped vertically from a certain height.it takes 4,5 seconds for the brick to reach the ground.determine the ff.the height from which the brick is dropped and potential energy of the brick
March 8, 2014

management science
Riverside Oil Company in eastern Kentucky produces regular and supreme gasoline. Each barrel of regular sells for $21 and must have an octane rating of at least 90. Each barrel of supreme sells for $25 and must have an octane rating of at least 97. Each of these types of ...
February 21, 2014

english
I MUST A DESCRIPTIVE ESSAY OF 350 WORDS AND MY TOPIC IS A YOUR DREAM HOUSE IN RUBRIC FORMAT, I DO NOT KNOW WHERE TO START AND HOW TO GO ABOUT WRITING THIS ESSAY, PLEASE HELP, PLEASE HELP.
February 11, 2014

Math
Chad buys peanuts in 2 pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2 pound bags of peanuts should chad buy so that he can fill 5/6 pound bags without having any peanuts left over?
January 27, 2014

chemistry
1. describe in outline a suitable procedure for the preparation of saturated solution of sodium nitrate at 30 degree celsius 2. State 2 techniques that can be used to recover crystals of the sodium nitrate from its saturated solution
January 8, 2014

Science
Compare renewable and nonrenewable energy sources, and discuss the effects of each on biodiversity.
January 6, 2014

Science
Never mind it will increase
January 6, 2014

Science
I think the fish population will increase. And the wading bird will decrease. Is that right?
January 6, 2014

Science
Can you give me a hint?
January 6, 2014

Science
Consider a wetland ecosystem similar to the one shown in the image below. In this ecosystem are two species: a small fish species and a wading bird species that feeds on the small fish as its main source of food. Oxygen levels are a limiting factor.Suppose that the local ...
January 6, 2014

Science
I think its water pollution?
January 5, 2014

Science
Fertilizers and pesticides applied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. This is an example of _________________ pollution.
January 5, 2014

Science
Dissolved?
January 5, 2014

Science
If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. Oxygen level in water is therefore a(n) _____________ with respect to the number of trout that a particular stream can support.
January 5, 2014

Science
D?
January 5, 2014

Science
13.Which of the following statements correctly states how human activity and biodiversity affect one another? A.As humans develop land for homes and industry, biodiversity increases B.As humans restrict fishing and oil drilling, biodiversity decreases C.As biodiversity ...
January 5, 2014

Science
So its A. Right?:)
January 5, 2014

Science
D?
January 5, 2014

Science
3. A nonnative species of animal is introduced into a healthy ecosystem. In its new environment, this species has no predators, although it preys on several native animals in the ecosystem. Make a prediction about the biodiversity and health of this ecosystem in the future. A....
January 5, 2014

Science
Thanks!:))
January 5, 2014

Science
D?
January 5, 2014

Science
Study the animal in the image below. What can you infer about the animal from this image? ( the image is a frog that is camouflaged on a tree) A.Its skin color is a warning to potential prey B.Its skin color is the result of a disease C.Its skin color helps it find mates D.Its...
January 5, 2014

Science
A biologist made population counts of four different species of animals in an ecosystem. What can you infer from these numbers about possible predator-prey relationships between the species? Species A:155 Species B:17 Species C:2467 Species D:19 A.Species A could be a predator...
January 5, 2014

Science
Thanks!:)
January 5, 2014

Science
No wait D
January 5, 2014

Science
A?
January 5, 2014

Science
C?
January 5, 2014

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