Friday
October 24, 2014

Posts by Mark


Total # Posts: 1,256

statistics
The p value is the: a. probability with which a test statistic would occur if the research hypothesis were true. b. probability with which a test statistic would occur if the null hypothesis were true. c. cutoff probability at which a test statistic is considered extreme. d. ...
October 20, 2014

science
can you tell me the relationship between water treatment and geckos
October 17, 2014

physics
the volume v of a sphere of radius r is given by v=4/3pie r^3 what is the fractional change in v for a fractional change in r
September 25, 2014

6th Grade Math
Marianne buys 16 bags of potting soil that comes in 5/8 -pound bags. A. How many pounds of potting does Marianne buy? 10 B. If Marianne’s father calls and says he needs 13 pounds of potting soil, will 4 more bags be enough to cover the extra soil needed? Is 10 the correct...
September 16, 2014

Solve. W rite each answer in simplest form.
Thank you Ms. Sue!
September 16, 2014

Math
You complete 3 centimeters on your necklace in an hour. Each hour after the first,you triple the length of the necklace. Write an expression using exponents for the length of the necklace after 3 hours.Then find the length.
September 16, 2014

Finance/Economics
You can invest your money in a taxable corporate bond paying 10% interest or a tax-free municipal bond paying 7% interest. Which would pay the higher after tax interest if you are in the 28% tax bracket?
September 16, 2014

ccs trigo
A pilot is flying at a heading of 96° at 225 miles per hour wind is blowing from the south west at a heading of 37° find the ground speed and courses of the plane
September 14, 2014

trig
bike tires are 22 inches in diameter and has an angular speed of 5 miles per second, how fast is the bike traveling in mph
August 15, 2014

algebra
A new cruise ship line has launched 3 new ship: the pacific, the Caribbean and the island. The Caribbean has 37 more deluxe staterooms than the pacific. the island has 38 fewer deluxe staterooms than twice the number of deluxe stateroom on the pacific. Find the number of ...
August 1, 2014

Math
I appreciate your help Bosnian, Thanks.
June 12, 2014

Math
The average price in dollars to rent a studio in Back Bay, Boston, Ma. can be approximated by the equation p=30.2t + 587,where t is the number of years since 1990. Solve this equation for t and use the new equation to determine approximately what year it will be when the ...
June 12, 2014

Physics
an 80kg man jumps off a 60m cliff, halfway to the ground, his GPE is 27,072J. What is his KE at the same moment?
June 8, 2014

algerbra 1
If 5g-4=6+7g, then g=
May 25, 2014

please help bio
R stands for the dominant form of the color blindness allele and r signifies the recessive form. Because Edward is NOT color blind, the allele on his X chromosome must be __________.
May 24, 2014

human biology
If type B blood was accidentally given to someone with Type O blood, a defense response called (A)__________ would occur. This is because the type O person has A and B defensive proteins called (B)__________ that would mount a defense against the type B blood, causing clumping.
May 22, 2014

Algebra where did I go wrong
Here is a web site that can help you wolframalpha
May 22, 2014

Algebra where did I go wrong
I'm pretty sure I'm right I believe the answer is 100
May 22, 2014

bio
If type B blood was accidentally given to someone with Type O blood, a defense response called (A)__________ would occur. This is because the type O person has A and B defensive proteins called (B)__________ that would mount a defense against the type B blood, causing clumping.
May 22, 2014

biology
Human immunodeficiency virus (HIV), the virus that causes AIDS, is unique because its main genetic instructions are in the form of RNA instead of DNA. Because of this, it’s called a(n) (A) __________. When a person is infected with HIV, the immune system mounts a normal ...
May 22, 2014

Chemistry
Ammonia is produced when Nitrogen gas reacts with Hydrogen gas, as shown by the equation below: N2 + 3H2 --> 2NH3 If the percentage yield is 90%, what would be your experimental yield of NH3 if 145.8g of N2 react? 2) 2Mg + O2 --> 2MgO A) If 50g of Mg reacts with 50g of ...
May 21, 2014

Chemistry
Ammonia is produced when Nitrogen gas reacts with Hydrogen gas, as shown by the equation below: N2 + 3H2 --> 2NH3 If the percentage yield is 90%, what would be your experimental yield of NH3 if 145.8g of N2 react? 2) 2Mg + O2 --> 2MgO A) If 50g of Mg reacts with 50g of ...
May 21, 2014

Math
How ugh are monthly payments on 100000 for 36 mo, at 9% ?
May 17, 2014

Statistics
Thanks Kuai that really helped me out.
May 7, 2014

Statistics
I am not understanding how to set this up. I have n=30 SD=4 xbar=250 after that I am lost
May 7, 2014

Statistics
A survey of 250 lobster fisherman found that they catch an average of 32 pounds of lobster per day with a standard deviation of four pounds. If a random sample of 30 lobster fisherman is selected, what is the probability that their average catch is less than 31.5 pounds?
May 7, 2014

Statistics
I still am not sure how to proceed with this with the information you gave me. Confused on this one
May 4, 2014

Statistics
Reginald Brown an inspector from the department of weights and measures, weighs 15 eighteen-ounce cereal boxes of corn flakes. he finds their mean weight to be 17.78 ounces with a standard deviation of .4 ounces. are the cereal boxes lighter than they should be? let Alpha = .01
May 4, 2014

statistics
John Davis, a manager of a supermarket, wants to estimate the proportion of customers that will be using food stamps at his store. How large a sample is required to estimate the true proportion to within 3% with 98% confidence?
May 4, 2014

math
A clerk is packing cubes into a box each cube has edges of 6 inches the dimensions of the box are 15 inches by 30 i.ches by 18 inches find how many cubes will fit in the box ? I dont know how to solve and explain how i found my answer please
April 29, 2014

Science
60,000n
April 29, 2014

Statistics
Think you messed up z=(.526-.47)/sqrt.526*.474/500)it should be Z=(.526-.47)/(.47)(.53)/sqrt 500 = am I right Sir
April 27, 2014

Statistics
Health issues due to being overweight affect all age groups. of children and adolescents 6-11 years of age,18.8% are found to be overweight. A school district randomly sampled 130 in this age group and found that 20 were considered overweight. at Alpha =.05 is this less than ...
April 27, 2014

Statistics
Two groups of climbers (team A and Team B) attempt to climb Mount everest using different routes. The probability of Team A reaching the summit is .70, The probability of Team B reaching the summit is .85. A. Sue calculated the probability the both teams reach the top in the ...
April 27, 2014

statistics
Thank you so much Kuai. This helped me out
April 27, 2014

statistics
If 30% of people in an area are registered voters and 15 people are selected at random from the area: A. what is the probability that at most 3 out of the 15 people are registered voters? B. could we have used the normal approximation to the binomial in part b? Explain why or ...
April 27, 2014

statistics
A basketball scout randomly selected 144 players and timed how long each player took to perform a certain drill. The times in this sample were distributed with a mean of 8 minutes. The population standard deviation was known to be 3 minutes. A. find the critical value for a 95...
April 27, 2014

Math
That does not help calculate the standard of error.
April 25, 2014

Math
LongLast Inc. produces car batteries. The mean life of these batteries is 60 months. The distribution of the battery life closely follows the normal probability distribution with a standard deviation of 8 months. As part of its testing program, LongLast tests a sample of 25 ...
April 25, 2014

Algebra
Calculate 5670 + 3.5% = 198.45 $198.45 + 5670 = $5865.45 Hope this helps.
April 25, 2014

statistics
In which of the following situations would it not be appropriate to use a paired t-test to analyze the data? A. A marriage therapist believes that many couples have different perspectives regarding the state of their marriages, prior to the start of couples therapy. In order ...
April 24, 2014

statistics
The average age for licensed drivers in a county is µ= 42.6, σ= 12 and the distribution is approximately normal. A county police officer was interested in whether the average age of those receiving parking tickets in the county differed from that of the average age ...
April 19, 2014

chemistry
How many calories will 45 grams of water release when it changes fom 85c to 30c?
April 17, 2014

Algebra
x over 2x-5 - 5 over 6x-15
April 12, 2014

Math
Their are 18 green blocks in a bag.their are 3 white blocks for every 2green blocks.witch proportion can be used to find w,the total number of white blocks in the bag?
April 7, 2014

Math help Please
My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?
April 7, 2014

Economics
Suppose Bill is on a low-carbohydrate diet. He can eat only three foods: Rice Krispies, cottage cheese, and popcorn. The marginal utilities for each food are tabulated below. Bill is allowed only 167 grams of carbohydrates daily. Rice Krispies, cottage cheese, and popcorn ...
March 24, 2014

Physics
Find the total change in the internal energy of a gas that is subjected to the following two-step process. In the first step the gas is made to go through isochoric heating until it gains 5363 J and its pressure is 2.92 105 Pa. In the second step it is subjected to isobaric ...
March 24, 2014

Math
Two angles are complementary. Twice one angle plus the other is 96. Find the measure of each angle.
March 23, 2014

Science
If the density of a steel hammer 7gm/cm on earth what would the density be on a spaceship?
March 20, 2014

Science
How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10 to the 7th km from Earth?
March 20, 2014

Physics
A 11 kg box slides 4.2 m down a frictionless ramp and then collides with a spring whose spring constant is 250 N/m. What is the maximum compression of the spring? I got 1.35 m but it is incorrect. Any help would be great!
March 19, 2014

math
i put 4000.00 in savings. at end of 3 years the account earned 960.00 in simple interest at what simple interest rate did the account grow? please show me the work.
March 14, 2014

ECE
Flannel board stories encourage the language arts skill of __________ more than other skills. A. listening B. writing C. speaking D. reading
March 12, 2014

Chemistry
Potassium permanganate (KMnO4) solutions are used for the determination of iron in samples of unknown concentration. As a laboratory assistant, you are supposed to prepare 700. mL of a 0.200 M KMnO4 solution. What mass of KMnO4, in grams, do you need?
March 9, 2014

Physics-Kinetic Energy
Can someone help me solve this kinetic energy problem? A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear. (Some people have all the luck!) One car is a 1200 kg compact traveling north at 4.5 m/s. The ...
March 9, 2014

Algebra
What is the domain of this relation? Is it a function? {(2, 7), (0, 3), (-4, 3)} Select one: a. {7, 3}; yes b. {2, 0, -4}; no c. {7, 3}; no d. {2, 0, -4}; yes
February 20, 2014

Algebra
Determine which point, if any, is in the solution half-plane of the two variable inequality. 3x – 2y < 6 Select one: a. (4, 1) b. (-1, -5) c. (1, 0) d. (2, -2
February 20, 2014

math
an open rectagular box with length of 6 feet, width of 4 feet and height of 2.5 feet is to be painted on all exterior sides, including the bottom, with a special waterproof coating. Each gallon of this special coating covers 12 square feet of surface area and costs $36.00. The...
February 18, 2014

english(check answers)
C.
February 4, 2014

english(check answers)
which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time.(I PICK THIS) B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid was a girl.(I PICKED THIS) D....
February 4, 2014

english(check answers)
please check answers 7.which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time.(I PICK THIS) B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid was a ...
February 4, 2014

english(2 Qs)
please answer these 2 questions. please 7..which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time. B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid ...
February 4, 2014

Social Studies (Ms. Sue)
I only see one answer choice
February 1, 2014

Math
A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start with?
January 27, 2014

College Algebra
A compound inequality uses one of the words and or or. Explain how you will determine whether to use the intersection or union when graphing the solution set
January 25, 2014

math
its about phones like att has a monthly fee of $39.99/mo and 450 anytime minutes which are included in the plan and any additional minutes are $0.45/min Sprint-has a monthly fee $34.99/mo and 450 anytime minutes which are included in the plan and any additional minutes are $0....
December 31, 2013

college algebra
A circular vent pipe with a diameter of 5.5 inches is place on a roof tht has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth.
December 10, 2013

College Algebra
A circular vent pipe with a diameter of 5.5 inches is place on a roof tht has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth.
December 10, 2013

Math
Well, first you have to find out how many are fielders. If 8 are pitchers and 5 are catchers, then the rest are fielders. Simply subtract 8 and 5 from 24. Then you take that number and subtract 5 from it. (Since difference means to subtract. And you're looking for the ...
December 9, 2013

combinatorical mathematics
At Brilli's zoo, she is trying to train a monkey to learn how to count. The monkey is given a stack of cards, numbered 1 to 30, in some random order. The cards are laid out from left to right. Each time the monkey moves the card numbered i+1 to the immediate right of the ...
December 9, 2013

algebra 1
how you get the answer for c?
December 1, 2013

algebra 1
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
December 1, 2013

algebra 1
Which is the equation of the line that contains the points (0,3) and (-2,4)?
December 1, 2013

algebra 1
Look at the pattern that follows. Which expression represents this pattern algebraically? 8, 17, 26, 35, 44, …
November 27, 2013

algebra 2
The Butler family drives home from a vacation. The table of values that follows shows the relationship between the number of gallons, g, of gasoline their car uses and the distance in miles, d, the car is from home: Gallons of Gasoline Used (g) Distance from Home (d) 1 144 2 ...
November 26, 2013

algebra 1
A manufacturer is cutting plastic sheets to make rectangles that are 11.125 inches by 7.625 inches. Each rectangle’s length and width must be within 0.005 inches. A. Plot the acceptable range of lengths on the number line that follows: B. Write an inequality to represent ...
November 24, 2013

algebra 1
thats what he had for an answer but he thinks a reasonable answer is w= -3 why though? and why is it incorrect?
November 23, 2013

algebra 1
for |4-3w|>8
November 23, 2013

algebra 1
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
November 23, 2013

Spanish
Are my answers correct? If I am wrong please don't give me the answer. Just ask me to try again. My choice marked by *** 1. Yo ______ en Chile y él ______ en Argentina. ***estoy . . . está estamos . . . estoy está . . . está estoy . . . est&...
November 14, 2013

science
Any topic (writer's choice) Research paper Science 3 pages / 825 words Discipline: Science Type of service: Writing from scratch Format or citation style: APA
November 5, 2013

medicine
A physician performed an aspiration via thoracentesis on a patient in observation status in the hospital. The patient has advanced lung cancer with malignant pleural effusion. Later the same day, due to continued accumulation of fluid, the patient was returned to the procedure...
November 5, 2013

Statistics
A camera store sells 40 pairs of binoculars per week on average with a standard deviation of 6. What is the probability that the store will sell more than 52 pairs binoculars in any week?
October 21, 2013

Math.. PLEASE HELP!! :(
If I divided 1.23x10^-10 and 1.4x10^-8, would my answer be 0.88x10^-18?
October 17, 2013

Math
If I divided 1.23x10^-10 and 1.4x10^-8, would my answer be 0.88x10^-18?
October 17, 2013

Science
What condition is needed for an experiment to have useful data?
October 17, 2013

Science
What condition is needed for an experiment to have useful data?
October 17, 2013

Science
What condition is needed for an experiment to have useful data
October 17, 2013

History
Well say you were applying into a college but you had 15 choices to choice from. However, you had to limit the choices to 5 due to expenses and how far it was from home. So you apply into all 5 colleges and you only get into 1 of those 5 colleges. You go to the college but ...
October 17, 2013

Science
What condition is needed for an experiment to have useful data?
October 17, 2013

Beginner French Work check
Hello! Just wondering if someone could check my work as there were a few areas that i'm not completely confident about. Thank you so much! Complete the sentence with the correct form of the verb in the future. Elle ___sera venu_____ (venir) chez moi ce soir. Nous ...
October 11, 2013

Intro to ethics 120
he outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which therefore needs to be changed...
October 10, 2013

physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...
October 10, 2013

biology
D. control
October 8, 2013

economics
Speculate as to why price leadership is legal in the U.S. whereas price fixing is not?
October 7, 2013

French
Thank you for the quick response! I have a PC with Windows. Also, i am having a hard time understanding what Direct and In Direct Pronouns i should use when they are in the same sentence. Elle demande le menu au serveur. Elle ___(1)___ ___(2)___ demande 1. le 2. lui Could you ...
September 26, 2013

French
Hello, I am taking a French course online and i just want someone to check some of my work from time to time to make sure i am doing it correctly and to give me any tips they may have. What i have copy and pasted below took me awhile to get so i just wanted a second opinion on...
September 26, 2013

Quantum physics
Anon, please help with 7 and 10
September 8, 2013

Quantum physics
Anon: 3rd choice foê Q3
September 8, 2013

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