Wednesday
July 23, 2014

Posts by PETER


Total # Posts: 846

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 ...

math
Evaluate: 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8

math
why use 1/2 , because 2 hours half

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?

math
sorry, I make a mistake, thank you

math
TT 4^2 x 18 TT 16 x 18 268 TT

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?

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?

math
thank you, I understand now

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?

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?

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.

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

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?

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

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?

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%.

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?

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...

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 ...

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 ...

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?

math
thank you

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?

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

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?

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

math
Rules useful in handling problems involving inequalities follow.

math
Inequalities Some Important Facts

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.

math
Rules useful in handling problems involving inequalities.

math
Inequalities some Important Facts

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.

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?

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

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

math
20,000 answer 4, thank you

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

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

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

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?

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

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 ...

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

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?

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)?

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?

Hillsdale
difference in resultant vs. equilibrant force

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

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 gasol...

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.

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?

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

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

Science
Never mind it will increase

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

Science
Can you give me a hint?

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 tempe...

Science
I think its water pollution?

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.

Science
Dissolved?

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.

Science
D?

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 decreas...

Science
So its A. Right?:)

Science
D?

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....

Science
Thanks!:))

Science
D?

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...

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...

Science
Thanks!:)

Science
No wait D

Science
A?

Science
C?

Science
There is a mosquito on a human. What type of relationship is that? A. Predation B. Commensalism C. Mutualism D. Parasitism

Science
Succession?

Science
Study the image below. Future changes in the meadow area are likely to occur as the result of the process of _________________. ( the picture is lots of grass with lots of flowers)

Science
I got the same thing for 22!

Science
What is 20 and 22?

Science
Thank you!!

Science
14 Habitat Destruction 15 Carbon dioxide 16 Conserve 17.Ozone layer 18.Water 19.Environmental impact 21.Land fills

Science
Habitat Destruction Carbon dioxide Conserve Ozone layer Water Environmental impact Land fills

Science
14.If a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to ________________________. 15.When fossil fuels are burned, they produce ________________, the main greenhouse gas responsible for g...

Science
Thank you Ms. Sue!! I will post the rest later!

Science
I skipped 5 6 7.

Science
My answers: 1.d 2.c 3.c. 4.b 5.d 6.a 7.d 8.a 9.a 10.b 11.d 12.b 13.c

Science
1.Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A.One species preys on the other. B.The relationship is mutually beneficial. C.They share the same niche. D.One species benefits, while the other is neit...

chemistry
Has anyone the right answer?

math
If #(a,b,c,d)means you subtract the sum of the terms from zero, and # (4,-8,11,d)=14, then d= answer and explain

math
I think is answer e

math
But the answer is a. 1/10 b. 1/9 c. 11/90 d. 12/90 e. 13/90

math
A two-digit number is chosen at random.What is the probability that the chosen number is a multiple of 7 ? please answer and explain

math (Reiny)
I don't know how to do

math (Reiny)
2 + 3^a + 4^a + d^a = 89 2 + 1^a + 1^a + d^a = 89 2^a + d^a = 87

math (Reiny)
If # (a,b,c,d)means you raise b,c and d to the power of a and then take the sum of the resulting values, and # (2,3,4,d)=89,then d=? a. 8 b. 9 c. 64 d. 81 e. 90 please answer and explain

math (Reiny)
If # (a,b,c,d)means you raise b,c and d to the power of d and then take the sum of the resulting values, and # (2,3,4,d)=89,then d=? 2^d + 3^d + 4^d = 89 1^d + 1^d + 1^d = 89 3^d = 89 d = 86

math (Reiny)
If # (a,b,c,d)means you raise b,c and d to the power of a and then take the sum of the resulting values, and # (2,3,4,d)=89,then d=? 2^a + 3^a + 4^a = 89 1^a + 1^a + 1^a = 89 3^a = 89 a = 86 an I do it right

math
ok, I understand now , thank you

math
I don't know how to translate word to math

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