Questions Asked on
April 29, 2014

Physics
In the afternoon, the decibel level of a busy freeway is 80 dB with 100 cars passing a given point every minute. Late at night, the traffic flow is only 5 cars per minute. What is the latenight decibel level?
asked by Georgey 
Chemistry
Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 1.9×10−9M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 2.1×10−2M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 6.1×10−12M
asked by Brandon 
English
Identify the correct sentence. A. In order to assess you're level of improvement in the course, you need to take both the pretest and the posttest. B. In order to assess your level of improvement in the course, you need to take both the pretest and the
asked by Angela 
Physical Science
Which of these cannot increase the strength of an electromagnet? a. making the loops smaller in the coil b. placing an iron bar in the coil c. winding more loops in the coil d. increasing the current in the coil
asked by Alex 
Physics
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 8.26 m/s2. Determine the orbital period of the satellite.
asked by Joe 
Calculus Help and Check
The marginal cost of manufacturing x yards of a certain fabric is C'(x) = 3 − 0.01x + 0.000012x2 (in dollars per yard). Find the increase in cost if the production level is raised from 2000 yards to 4000 yards. $186,000
asked by Tenshi 
English  Help!!
1. The sharp rock LACERATED her side as she climbed the side of the cliff. bruised sliced scratched wounded I think it's B? Can someone help?
asked by Sandy East Ward 
nursing/dosage
The health care provider prescribed the adjustment of the IV hourly rate based on the nasogastric tube (NGT) output q4h (every 4 hours) for a client who had abdominal surgery yesterday. From 12:00pm to 4:00pm the NGT output was 240ml and the IV was infused
asked by Stephanie 
grade 3 math
1) what is the greates perimeter of a rectangle with an area of 39 square feet? 2) What is the least perimeter of a rectangle with an area of 32 square feet? 3) A rectangle has an area of 42 square inches. Which has a greater perimeter, the rectangle with
asked by mimi 
precalc
The wheels of a car have a radius of 11 inches and are rotating at 600 revolutions per minute, find the speed of car in mileage per hour.
asked by Andy G 
Math
Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or ∞, type INFINITY or INFINITY.) h(u,v) = sqrt(4u^2v^2) u^2+v^2 = ?
asked by Mia 
probability
PROBLEM 7: SAMPLING FAMILIES (3 points possible) We are given the following statistics about the number of children in the families of a small village. There are 100 families: 10 families have no children, 40 families have 1 child each, 30 families have 2
asked by JuanPro 
CALCULUS
The region R is bounded by the xaxis, yaxis, x = 3 and y = 1/(sqrt(x+1)) A. Find the area of region R. B. Find the volume of the solid formed when the region R is revolved about the xaxis. C. The solid formed in part B is divided into two solids of
asked by Anon 
grade 3 math
two rectangles have an area of 36 square inches. Name two possible perimeters for the rectangles.
asked by mimi 
Trigonometry
An observer (0) spots a plane flying at a 55 degree angle to his horizontal line of sight.If the plane is flying at an altitude of 21,000 ft., what is the distance (x) from the plane (P) to the observer (0)
asked by Angelica 
Probability
In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for and 'mu' for . Follow standard notation. 1. Shuttles bound for Boston depart from New York every hour on the hour (e.g., at exactly one o'clock, two o'clock,
asked by qwerty 
math (5)
Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars,
asked by Mia 
Maths
Max pack cereal boxes into a larger box the volume of each wreak box is 175 cubic inches which is the best estimate for the volume of the large box 210,420,2,100 4,200 I pick 2,100 is that correct
asked by Pinks 
science
Running the dishwasher only when it is completely full is an example of? A. recycling resources B. using nonrenewable resources C. reusing resources D. reducing resource use
asked by CIERRA 
Chemistry
Classify each of the compounds below as strong or weak acids, strong or weak bases, or salts: A. HCl B. KOH C. NH4NO3 D. H2SO4 E. NH4OH F. H3PO4 G. NaOH H. HClO4 i. Mg(OH)2 J. H2CO3 K. BaSO4 l. HC2H3O2 The numbers are sub(little numbers
asked by ASAP!! 
trig
On a typical day at an ocean port, the water has a maximum depth of 18m at 6:00 am. The minimum depth of 9m occurs 6.8 hours later. Write an equation to describe the relationship between the depth and time.
asked by Sam 
college chem
A sample of methane gas CH4, occupies a volume (L) of 58.2 L at a pressure of 7.25 atm. What volume will the gas occupy if the pressure is lowered to 2.03 atm
asked by ashley 
chemistry
pure water has a hydrogen ion concentration of 1 x 107 m and a ph of 7. a student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 103. explain why the student must have an error in her statement
asked by didisilver 
Chemistry
Would it take more 0.1 M HCl or 0.1 M H2SO4 to neutralize 30 ml of NaOH?
asked by Anonymous 
Math
A manufacturer samples 100 wires for quality testing. Four of the wires are found to be defective. If 750 wires are produced in one hour, how many should the manufacturer expect to be defective? A.30 B.60 C.75 D.96
asked by Candy 
English
Identify the sentence that is punctuated correctly. A. Here is our check, Mr. Vons, for $7.35. B. Here is our check Mr. Vons, for $7.35. C. Here is our check, Mr. Vons for $7.35. D. Here is our check Mr. Vons for $7.35. D
asked by Angela 
Govt college of technology
A fly wheel rotates at 300 rev/min.if the radius is 6cm through what total distance does a point on the rim travel in 30 sec.
asked by shoaib 
probability
Fred is giving away samples of dog food. He makes visits door to door, but he gives a sample away (one can of dog food) only on those visits for which the door is answered and a dog is in residence. On any visit, the probability of the door being answered
asked by JuanPro 
Algebra
How do I solve: One leg of a right triangle is 4 m longer than the other. If the length of the hypotenuse is 18 m, how long are the other two legs?
asked by Allen 
Cost Accounting
The accounting records of Nutonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 $ 20,000 Materials Inventory as at 31 December 2013 $ 24,000 Work in process Inventory as at 1
asked by Tami 
Astronomy
The luminosity of the Sun is 4*10^33 erg/s, and its radius is 7*10^10 cm. What is the Sun's effective temperature? Please enter your answer in units of Kelvin. What is the Sun's effective temperature? Please enter your answer in units of Kelvin. 
asked by qwerty 
Science
a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N
asked by Anonymous 
Math
In a sample of 50 museum visitors one afternoon, 22 were female and 28 were male. If there were 800 museum visitors that afternoon, estimate the number of visitors who were female. A.220 B.352 C.448 D.700 Is the answer C?
asked by Carol 
chemistry
How many minutes are needed to plate out 29.00g Mg from molten MgCl2, using 2.70A of current?
asked by joe 
probability
In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for λ and 'mu' for μ. Follow standard notation. Shuttles bound for Boston depart from New York every hour on the hour (e.g., at exactly one o'clock, two o'clock,
asked by JuanPro 
A.P English
Would an example of parallelism in "Beloved" be the mention of the "chokecherry tree" on her back, since it's mentioned a couple of times? Or would parallelism be more like the dog leaving and not coming back to the house twice because of the ghost? (I'm
asked by Me 
Physics
A 1.0 m long string is fixed at both ends and has a tension of 80N. The mass of the string is 2 gm. Find the third harmonic of the sound emitted by this string. a. 50 Hz b. 100 Hz c. 200Hz d. 300 Hz
asked by Freddy 
college chem
A mixture contains H2 at 600 torr pressure, N2 at 200 torr pressure and O2 at 300 pressure. what is the total pressure of the gases in the system?
asked by ashley 
science
why do cells created by meiosis only have half the number of chromosomes from the original cell?
asked by anabelle 
grammar  conjunction
Fill in the blanks with the words those given in the brackets. ( though / after / if / so / when / while / for / as / but ) 1)(Though) poor himself, he tried to help others. 2)We must wait (until) Ali comes, (as) he has all your tickets. 3)(When) it
asked by niya 
Cost Accounting
The accounting records of Nutonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 $ 20,000 Materials Inventory as at 31 December 2013 $ 24,000 Work in process Inventory as at 1
asked by Candy 
Probability
Fred is giving away samples of dog food. He makes visits door to door, but he gives a sample away (one can of dog food) only on those visits for which the door is answered and a dog is in residence. On any visit, the probability of the door being answered
asked by qwerty 
Probability
We are given the following statistics about the number of children in the families of a small village. There are 100 families: 10 families have no children, 40 families have 1 child each, 30 families have 2 children each, 10 families have 3 each, and 10
asked by qwerty 
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 don't know how to solve and explain how i found my answer please
asked by mark 
Astronomy
Choose one answer for each question How old is the universe? 6,000 years old 380,000 years old 13.8 billion years old 13.8 million years old A parsec is: Longer than a light year The distance between the Earth and the Sun Approximately 3x10^24 cm None of
asked by qwerty 
Science
in a cladogram, a branch point represents a(n)____________ and a branch that ens without leading to living species represents___________. a. common ancestor,;extinction b.mutation; punctuated equilibrium c.extinct species: common ancestor D.common
asked by Leo 
math
Which is M=300J/P solved for J? A. J=300PM B. J=300M/P C. J=300PM D. J=PM/300
asked by brianna 
Physics
The maximum kinetic energy of a massspring system in SHM is equal to
asked by Spaceman 
CALCULUS HELP PLZ
The region R is bounded by the xaxis, yaxis, x = 3 and y = 1/(sqrt(x+1)) A. Find the area of region R. B. Find the volume of the solid formed when the region R is revolved about the xaxis. C. The solid formed in part B is divided into two solids of
asked by Anon 
algebra 1
Mrs. Hernandez owns a computer training business. She charges a lab fee plus an hourly fee to train office workers on various software programs. It costs $265.00 to attend a 6hour course and $345.00 for an 8hour course. Which equation relates x, the
asked by Anonymous 
English help
What are some interesting facts about Nikki Giovanni's writing?
asked by Anonymous 
algebra
Write a ratio in simplified form of the area of the shaded figure to the area of the figure which encloses it. I have a square with height 5w and width 5w. Enclosing it are a right triangle on each side, which have a width of 6 and have the square's height
asked by Anonymous 
statistics
Build a 95% confidence interval for the mean of the population from the given sample data. Assume that the population has a normal distribution. 16.4, 15.7, 16.2, 15.8 17.1 15.8, 15.9, 16.0, 16.4 15.0 *please help me solve this! I have no clue what I am
asked by Sarah 
Math
You have to choose a battery brand to use in your smoke alarm. Company A's batteries have a mean lifespan of 1.2 years, with a standard deviation of 0.1 years. Company B's batteries have a mean lifespan of 1.5 years, with a standard deviation of 0.9 years.
asked by Chloe 
algebra 1
The Ricco family filled the gasoline tank of their car at the beginning of a long trip. Their car used gasoline at the rate of 1 gallon every 21 miles. When they stopped for lunch, they had driven 315 miles, and there were 9 gallons of gasoline left in the
asked by Anonymous 
Programming
Write a function that takes one positive integer value (call it n) as a parameter and produces the sum of the integers between 1 and n. Hint: The sum of the integers from 1 to n is n*(n+1) all over 2 I know this is how the function should look but I am
asked by Annabelle 
Algebra 1 math
Deborah rolls two fair dice. What is the probability that the sum of the numbers rolled is 7?
asked by HELP PLEASE 
Math
There are 3,000 people at a concert. You survey a random sample of 200 people and find that for 35 of them this is the first concert they have ever attended. Estimate how many people are attending their first concert that night.
asked by Gwen 
Math
You want to conduct a survey to find out what sport the students at your school prefer to play. a) You interview 20 boys playing football at lunch. Is this a random sample? explain b) The survey question you ask is, ''What is your favorite sport to play?''
asked by Liv 
math
Simplify by combining like terms. 9m + 5m  4
asked by Anonymous 
science
solar,wind,nuclear,and hydroelectric energy sources are similar in which of the following ways? A. they are all nonrenewable energy sources B. they all require an indirect use of sunlight in order to make electricity C. they are all considered alternative
asked by help plzz 
french
unscramble  qobusteiu
asked by bob 
Chemistry
If a plant has 88.0 g carbon dioxide and 64.0g water available for photosynthesis determine: a the limiting reactant b. the excess reactant and the mass in excess c. the mass of glucose produced
asked by Lou 
statistics
A researcher is testing the effect of a new cold and flu medication on mental alertness. A sample of n=9 college students is obtained and each student is given the normal dose of the medicine. Thirty minutes later, each students performance is measured on
asked by ed 
*math (7)
Evaluate the first partial derivatives of the function at the given point. f(x, y) = x^2 + xy + y^2 + 2x  y ; at (5, 4) fx(5, 4) = ? fy(5, 4) = ?
asked by Mia 
algebra
a certain test us worth 125 points (rounded to the nearest point are need to obtain a score of 75%
asked by Mary 
solid mensuration
how to solve ABC is a right triangle with C as the right angle and sides AC=6 cm and BC=8 cm. Line segment CD is drawn perpendicular to both AC and BC at C. If CD=12 cm, find the distance from D to midpoint E of AB.
asked by john roman 
Math
Circle Graphs Month  Snowfall  Percent  Angle Measure November  1  ? 1%  ? 3.6 December  4  ? 4%  ? 14.4 January  5  ? 5%  ? 18 February  2  ? 2%  ? 7.2 How would I make a circle graph? Or did I do something wrong? The month and snowfall
asked by Anonymous 
math
if it takes hannah 6.5 hours to ride moped to gainesville from tamp and dylan travels 30 mph faster and it takes 2.6 to travel same distance how far is gainesville from tampa
asked by sage 
physiology and health
True or false I realy need help!!!!!! 1) A relationship is a bond between people. 2) Citizenship is the way you conduct yourself as a member of the community. 4) Communication involves only sending messages to others. 5) Passive communicators always stand
asked by rana 
probability
Suppose that you have two laptops, both of which you begin using at time 0. Each laptop will eventually fail, and we model each one's lifetime as exponentially distributed with the same parameter λ. The lifetimes of the two laptops are independent. One of
asked by JuanPro 
home ecoecnomicsnomics
what are costs and consequences of providing the subsidies and welfare
asked by sipho prince 
probability
All ships travel at the same speed through a wide canal. Each ship takes t days to traverse the length of the canal. Eastbound ships (i.e., ships traveling east) arrive as a Poisson process with an arrival rate of λE ships per day. Westbound ships (i.e.,
asked by JuanPro 
probability
Consider a Poisson process with rate λ. Let N be the number of arrivals in (0,t] and M be the number of arrivals in (0,t+s], where t>0,s≥0. In each part below, your answers will be algebraic expressions in terms of λ,t,s,m and/or n. Enter 'lambda' for
asked by JuanPro 
maths
can some one help me here : if 5 cos x + 3 = 0 and 180 degrees < x < 306 degrees , find the value of 3 tan x + 25 sin^2 x
asked by nokuphiwa 
probability
lengths of the different pieces are independent, and the length of each piece is distributed according to the same PDF fX(x). Let R be the length of the piece that includes the dot. Determine the expected value of R in each of the following cases. In each
asked by JuanPro 
physics
Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a yaxis.)
asked by valerie 
physiology and health
True or False???? 1) During mediation, a mediator dose not have to maintain confidentiality. 2) Food, shelter, and clothing are baisc needs that parents are expected to provide for their children. 3) Affirmation is the act of giving positive input that
asked by rana 
college chem
a sample of a gas occupies a volume of 1025 mL at 75 degrees Celsius and 0.75 atm. What will be the new volume if temperature decreases to 35 degrees Celsius and pressure increases to 1.25 atm
asked by ashley 
math
Sarah's parents are filling their swimming pool. She wants to know how long it will take. What unit is best used to give the rate of the water flowing into the pool? Her pool is 22,000 gallons. What unit will the answer to her question be answered in?
asked by roberto 
college chem
A sample of O2 gas was collected over water at 23 degrees celsius and 772 torr. what is the partial pressure of the O2?
asked by ashley 
Engineering
Three resistors , 50 ohms, 100 ohms, and r3 are connected in a series to a power source with potential difference 48 volts and a current throughout the circuit. Can anyone help me figure out what r3 is ?
asked by Ashley 
Math
It takes 5 small fish to make 1 1/4 cup of ice cream. How many fish does it take to make 6 cups of ice cream?
asked by Becky 
grammar  conjanction
Fill in the blanks with the words those given in the brackets. ( though / after / if / so when / while / for / as / but ) 1)....... poor himself, he tried to help others. 2)We must wait........Ali comes, as......he has all your tickets. 3).......it started
asked by niya 
Math
How long is 3 quarter hours
asked by Sintia 
precalc
Find the area of a sector and arc length whose central angle is 0.5 radians and a radius of 10 inches.
asked by Andy G 
precalc
Memphis and New Orleans are approximately on the same meridian. Memphis has a lattitude of 35 degrees north and New Orleans has a lattitude of 30 degrees north. Find distance between them, assuming radius of Earth is 3960 miles.
asked by Andy G 
math
Sara has x ribbons and 4 extra ribbons. Jill has 12 ribbons. Express the number of ribbons that Sara has in terms of x.
asked by Anonymous 
precalc
A celing fan with 16 inch blades rotates at 45 revolutions per minute. Find angular speed of fan in radians per minute. Find linear speed of the tips of blades in inches per minute.
asked by Andy G 
physics
A 1500kg car coast in neutral down a 2.0degrees hill. The car attains a terminal speed of 20.0 m/s. The question is:how much power must the engine deliver to drive the car on a level road at 20.0 m/s?? Help me out please!!
asked by Anonymous 
Cost Accounting
The accounting records of Nutonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 $ 20,000 Materials Inventory as at 31 December 2013 $ 24,000 Work in process Inventory as at 1
asked by Candy 
math
(x^24x+6)(x3)^1
asked by DS 
Algebra
Simplifing rational expressions Simplify the expression & state any excluded values: (2s^2  5s  12) / (2s^2  9s + 4)
asked by Sandra 
calculus
9x^3+5x8 divided by 3x2
asked by DS 
ap statistics
Seventyfive (75) people with hypertension were given a new drug for the treatment of their condition. Blood pressure was lowered sufficiently to reduce the risk of serious outcomes in 20 of the 75 patients. (B) Calculate a 95% confidence interval for the
asked by emma 
calculus
8x^3 + 27 divided by 4x^2 + 12x +9
asked by DS 
math
24^2 10x 21/32^2 18
asked by DS 
math
(2y^3 3y^2 +3y 4)/(y2)
asked by DS 
maths
1234567 x 7654321
asked by ann 
chem
How many grams of NH3 are present in 725 mL of gas at STP?
asked by haley 
Chemistry
The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL
asked by Mantsha 
Chemìstry
The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL
asked by Anonymous 
math
what is the volume of a cereal box that is 6.5 inches long 4.25 inches wide and 10 inches tall ?
asked by evelyn 
grammar
Is this sentence is correct? He wanted to polish his shoes, for it were covered with mud. or else replace it with they.
asked by Mohamed 
social studies
1. How does the IsraeliPalestinian conflict most directly affect the daily lives of young people in Jerusalem
asked by lena sulhoff 
math
She also needs three pieces of blue satin that total of 9/4 yards. simplify this sum.
asked by Jaedon 
chemistry
At 22 degrees Celsius and 729 torr pressure, what will be the volume of 75 mol of NH3 gas?
asked by Anonymous 
Product MGT
At the grocery store, you buy a pack of 18 eggs and decide that when you get down to only 6 eggs you will buy another 18. In this scenario, what is your re order point? In this situation, what is your order quantity ?
asked by Alice 
chemistry
How many moles of O2 are contained in 5025 L at 26 degrees Celsius and 1.2 atm
asked by mario 
Probability
All ships travel at the same speed through a wide canal. Each ship takes days to traverse the length of the canal. Eastbound ships (i.e., ships traveling east) arrive as a Poisson process with an arrival rate of ships per day. Westbound ships (i.e., ships
asked by qwerty 
calculus
(x^21)/5x+5
asked by bj 
calculus
x^29/8x24
asked by bj 
calculus
3x^275/6x+30
asked by bj 
college chemistry
Consider the following equation: 4 NH3(g) + 5 O2(g)= 4 NO(g) + 6 H2O(s) a) HOw many liters of oxygen are required to react with 205 L NH3? Both gases are STP. b)How many grams of water vapor can be produced from 25 L NH3 if both gases are STP? c) How many
asked by la fonda 
social studies 9
Why do you think the government has downplayed the Royal Proclamation in regard to land claims?
asked by kim 
grammar
If you try hard enough, you will surely succeed.
asked by Mohamed 
math (3)
Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or ∞, type INFINITY or INFINITY.) f(s,t)= sqrt(s^2+t^2) s = ? t = ?
asked by Mia 
chem
calculate the density of each of the following gases: a)NH3 at 25 Degrees Celsius and 1.2 atm b)Ar at 75 Degrees Celsius and 745 torr
asked by Ashley 
history
Which of the following state has the least amount of net farm income Answer Are Texas New Jersey Louisiana California I think New Jersey Thank You
asked by snow 
math 109
Charlie wants to buy a $500 TV in 8 months. How much should he invest now at 4% simple interest to have the money in 8 months?
asked by gates 
Information Literacy
Study the following citation: "LONDON 2012 OLYMPIC PARK: Making the most of London's landmarks." Building Design 27 July 2012: 19. Penn Foster. Web. 2 Aug. 2012. What is the title of the journal in which the article is published? A. Penn Foster B. LONDON
asked by Shamille 
Physics
At the Earth's surface, a projectile is launched straight up at a speed of 9.9 km/s. To what height will it rise? Ignore air resistance and the rotation of the Earth. _____m
asked by Joe 
economic
what are welfare payments or consumer subsidies
asked by anathi 
Math
What is the product of 659 and 95
asked by Muff 
Math
Hector has $450 and saves 20 per week. Tim has $1200and spends $30 per week.write a system equation for this situation
asked by Elena 
social studies 9
Why do you think the government has downplayed the Royal Proclamation in regard to land claims? I don't understand the question.
asked by kim 
Space Exploration
List three subsystems of a SARSAT satellite and tell what the function of eCh subsystem is. Please help I can't seem to find them.
asked by Cherie 
Math
Mack rolls a 15sided cube 45 times, what would you predict the probability to be of Mack's rolling a number less than 5?
asked by Neid 
Statistics
Professor Casey performs a t test of Ho: u1  u2=0 using a.01 and finds a significant difference between Xmean1 and Xmean2. From this we can infer. a. a large difference between u1 and u2. b. an important difference betwee u1 and u2. c. u1 and u2 to be
asked by Kevin 
math
what percentage more is 2200 than 1725.
asked by Ellen 
Statistics
In oneway ANOVA involving three groups, the alternative hypothesis would be considered correct if, in the population, a. all means were equal. b. two means are equal but the third is different. c. all three means have different values. d. either (b) or
asked by Kevin 
statistics
1000 raffle tickets are sold and the winner is chosen at random there is only one prize $500 in cash you buy one ticket(a) what is the probability you will win the prize of $500 (b) your expected earnings can be found by multiplying the value of the prize
asked by Doris 
Statistics
In order to critical values of t to be precisely correct for testing Ho: u1u2=0 using small independent samples, we must assume a. ó1 = ó2 b. normality of populations c. u1 = u2 d. all of the above.
asked by Kevin 
Math Help!
If one fish is twice as long as another,how do their weights compare? If one fish is as heavy as another, how do their lengths compare? L 31,33,35,37,39 W 250,308,363,420,520
asked by Kevin 
math
a coding supervisor must determine the number of fulltime equivalents (FTEs) needed to code 500 discharges per week. If it takes an average of 20 minutes to code each record and each coder works 7.5 productive hours per day, how many FTEs will the coding
asked by Anonymous 
Physics
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball. The acceleration due to gravity on the moon is 1/6 of its value on the earth (gravity on moon 1.633m/s2). On earth, golf balls are driven at about 70 m/s with a loft angle of
asked by Arrchan 
Physics
If it takes a particle in SHM 0.60ss to travel from the equilibrium position to the maximum displacement (amplitude), what is the period of oscillation?
asked by Spaceman 
Chem.
in the equation Ba(NO3)2(aq)+Na2SO4 (aq) →BaSO4(s) + Na2(NO3)2 .......is Na2(NO3)2 aqueous?
asked by Anonymous. 
Physics
A golf ball struck with an initial speed of 41.8m/s. What is the range of the shot if the launch angle is 30.0º?
asked by Arrchan 
Math! Helppppp
Two poles are place 15 feet apart. One pole is 8 ft high and the other pole is 16 ft high. The top of each pole is attached to the base of the other by cable which run in a straight line. Find the slopes of the lines defined by the two ropes. How high
asked by Kim 
Math
The length of a rectangle is 11 cm more than its width. The area of the rectangle is 2040 cm^2. Find the dimensions of the rectangle.
asked by Ara 
English
When addresses appear within the text of a document,: A. always abbreviate the street, city, and state. B. it is optional to abbreviate the parts of the address. C. spell out the parts of the address. D. always abbreviate the street and city and spell out
asked by Angela 
Helpppp Math!!!
The market value (in thousands of dollars)of a certain home is a linear function of t, the time in years since 1990. In 1992 the market value was 68 thousand dollars, while in 1997 the market value was 79 thousand dollars Find the slope of V as a linear
asked by Kim 
Math
What is 4x1 1/2?
asked by Gage 
Math Help
you have a space in your garden for 100 small flowering bulbs. Crocus bulbs cost $0.45 each, and daffodil bulbs cost $0.85 each. Your budget allows you to spend $55.80 on bulbs. How many crocus bulbs and how many daffodil bulbs can you buy?
asked by Sarah 
Math
Math  Cindy, Tuesday, April 29, 2014 at 8:44pm At Bobs diner, it costs $8.00 to purchase two hamburgers and one order of fries. The "family pack" costs 30.00 and comes with six hamburgers and six orders of fries. If the prices are constant,how much does
asked by Anonymous 
social studies 9
Pros and cons of the Quebec Act
asked by kim 
Science
Which of the following would have the greatest force? an object with low mass accelerating slowly an object with low mass accelerating quickly an object with high mass accelerating quickly
asked by Anonymous 
calculus
24^210x21/32x^281
asked by DEAWN 
calculus
8x^3+27/4x^2+12x+19
asked by DEAWN 
calculus
x^2+5X/(x^325x)(x5)^1
asked by Barbara 
calculus
(2y^33y^2+3y4)/(y2)
asked by Barbara 
calculus
9x^3+5x8/3x2
asked by Barbara 
statistics
A professor is interested in the relationship between the number of hours students study for a quiz and their quiz grades. She asked each student to record the number of hours that he/she studied for the final exam. She also recorded the students’ grades
asked by April 
calculus
(x^24x+6)(x3)^3
asked by Lewis 
statistics
It is known that the population mean for the Quantitative section of the GRE is 500, with a standard deviation of 100. In 2006, a sample of 400 students taking the GRE, whose family income was between $70,000 and $80,000, had a quantitative GRE score of
asked by Lee 
calculus
24x^210x21/32^218
asked by Lewis 
Chemistry
1) In the reaction NaOH + H2O > Na+ + OH, sodium hydroxide is the: A) Lewis acid B) BrønstedLowry acid C) Arrhenius base D) Amphoteric substance E) None of the above (I think it's C) 2) The conjugate acid of the sulfide ion is: A) S^2 B) HS C) H2S
asked by Amanda 
geometry
concrete can be purchased by the cubic yard. how much will it cost to pour a slab 17 feet by 17 feet by 2 inches for a patio of the concrete cost $ 40 per cubic yard
asked by joe 
math
Hello there, im doing an equation and its mind boggling me badly so i want to see if im doing something wrong or not. It goes like this: sinx  Squareroot of 3/2 > 0 x € [0,2pi) i start by moving the sqroot of 3.. so i have sinx >sq3/2. as of that my
asked by paul 
introduction to finance
mary watson is 24 years old and single, lives in an apartment, and has no dependents. Last year she earned $45,000 as a sales assistant for focused business analytics: $3,910 of her wages was withheld for federal income taxes. In addition, she had interest
asked by quez 
Statistics
Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t
asked by Kevin 
Science
What is the force that results from a 3,000 kg car accelerating at 20.00 m/s^2
asked by Anonymous 
Language arts plz help
1. The poet uses all of the following in "Annabel Lee" except (1 point)alliteration. simile. repetition. rhyme. 2. Which of the following best shows that the speaker is still deeply in love with Annabel Lee? (1 point)The speaker explains that he and
asked by gabe 
math
If X = 2 4 6 8 y = 1 2 5 8 What is the slope I know that slope = vertical change over horizontal change and rise over run
asked by steve 
chemistry
How many kilograms of H2O must be added to 76.0 g of Ca(NO3)2 to form a 0.509 m solution?
asked by Cece 
Chem
Please help how to set up How many grams of CuSO4 * 5H2O are needed to prepare 100.ml of a 0.10 M solution?
asked by Nicholas 
Math
Two dice are rolled what are the odds of getting a smaller number on the second roll? P ( same number or sum greater than 8)
asked by Chris 
Statistics
Tukey's HSD test is used a. prior to performing a oneway ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a
asked by Kevin 
Psychology
The study of sensation and perception is important to a psychologist perception and sensation are the foundation of:
asked by Dr.Jay 
math
empirical probability and theoretical probability of 2 tails  210 1 tail  480 0 tail  310
asked by yamille 
math
What would the graph look like for the linear function of y = 1/3x 4
asked by steve 
English
What is 3 point difference between working students vs. non working students?
asked by Cathy 
Math
If I have 5 yellow marbles and 7 blue marbles, what fraction are yellow?
asked by Julie 
Chemistry URGENT
Could someone let me know if I answered these questions? 1. How do you classify the liquid pair mineral oil  H2O, miscible or immiscible? I believe the answer is immiscible because oil and water do not mix. 2. what would be the Molarity of a solution
asked by jazz 
Chemistry
If you measured vitamin C in the solution prepared from a vitamin C tablet, calculate how much vitamin C was in the tablet (show your work) and compare that with the amount claimed to be in the tablet given on the label. [Note: You dissolved the tablet in
asked by SS 
math
Can 3t^2+5t2 be factored?
asked by Anonymous 
Math
A fish and game worker catches, tags, and releases 120 trout in a lake. Later, she catches 84 trout and finds tags on 30 of them. Estimate the number of trout in the lake. A.43 B.234 C.336 D.3600 Is it C?
asked by Kayla 
math (4)
Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars,
asked by Mia 
Math
Wildlife biologists catch, tag, and release 32 bears at a game reserve. Later,10 bears are caught and 4 of them have tags. Estimate the total number of bears at the game reserve. A.320 B.316 C.128 D.80 Is the answer D?
asked by Beau 
progamming concepts
Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada Less than $50.00 $6.00 $8.00
asked by Edgar 
Business
To save on gasoline expenses, Edith and Mathew agreed to carpool together for traveling to and from work. Edith preferred to travel on I20 highway as it was usually the fastest, taking 25 minutes in the absence of traffic delays. Mathew pointed out that
asked by Ki 
Chemistry
Provide equations for each of the following: a. Dissociation of a strong base in water solution b. Ionization of a strong acid in water solution: c. Ionization of a weak acid in water solution: d. Ionization of a weak base in water solution: e.
asked by ASAP!! 
science
which of the following is used to make biomass fuel? A. coal B. natural gas C. plants and animals waste D. petroleum
asked by help plzz 
Trig
Find the 6th term of the arithmetic sequence with a9=120 and a14=195
asked by Kiki 
Trig
Find the 20th term of an arithmetic sequence with a=1 and d=1/2
asked by Kiki 
algebra
the pitch of a roof is the ratio of the rise to half span. If a roof has a rise of 6 feet and a span of 20 feet what is the pitch. Thank you
asked by Mary 
Trig
What is the sum of the arithmetic series where n=100 , t1=7 and t2=205
asked by Kiki 
Trig
What is the sum of the arithmetic series where n=50 , t1=9 and t2=331
asked by Kiki 
math
Terry wants to buy one pair of moccasins. She can choose from some that costs $22.50, $27.00, $20.95, and $24.75. How much will Terry save if she buys the least expensive instead of the most expensive pair?
asked by Julia 
4 the grade math
What's 3/4 of blank=75
asked by Elsana 
Science
If you spin a waterfilled cup horizontally on a flat table, did you exert force on the water?
asked by Kathleen 
Italian
Anybody knows italian and can translate a parahraph.?
asked by ASAP!! 
S.S
Can someone help me figuire out 4 recomendations to build a stronger cuba?
asked by matt 
Physics help
Let's say you have a plot for Pendulum experiment. Let's assume g for this experiment was measured (from the slope of the plot) to be 9.78 [ms2. The vertical intercept, however, is 0.011 [s2]. What might this translate to for a measurement of the length
asked by Anonymous. 
Math11
You want to buy a used allterrain vehicle (ATV) that costs $2800.00. You Have $1100.00 in savings and can save $200.00 more a month. Your local credit union offers loans at 6.50% per annum over a term of 12 months. You have a bank credit card with an
asked by Jerra 
Geometry
Show that each conditional is dales by finding a counterexample. If an animal is a bird, then it is a penguin.
asked by Alicia 
aptitude
Three individuals form a partnership and agree to divide the profits equally. X invests $4,500, Y invests $3,500 and Z invests $2,000. If the profits are $1,500, how much less does X receive than if the profits were divided in proportion to the amount
asked by Anonymous 
algebra
if you multiply a number by 4 and than subtract negative 10, the difference is a negative 26. what is the number
asked by Mary 
Algebra
89, 88, 78, 95, 92 Sadye has the Algebra test scores shown. If her goal is to have a test average of 90 or higher what is the lowest score she can make on her next test and still achieve her goal? Note: scores are not rounded.
asked by Daizha 
Chemistry
Did I ionize Mn2(CO3)3 correctly? Mn2(CO3)3 > 2Mn^(3+) + 3CO3^(2)
asked by James 
science
How does using coal to generate electricity A. using more coal reduces the amount of pollution from using oil
asked by help plzz 
History help
1. The U.S. Supreme Court Decision in Plessy v. Ferguson said that Louisiana's SeparateButEqual laws were unconstitutional. True False 2. Redeemer Democrats were often called Bourbons. True False 3. What term describes the Louisiana Bourbons? Enlightened
asked by Golden Star 
Statistic in Social Science
The verbal part of the Graduate Record Exam (GRE) has a mean of 500 and a standard deviation of 100. Use the normal distribution to answer the following questions: a. If you wanted to select only student at or above the 90th percentile, what verbal GRE
asked by Rhea 
math
2^x = 0.125
asked by shegster 
chemistry
How many milliliter of 2.5 M NaOH are neededto neutralize 2.7 ml of a 4.9 M H2SO4 solution?
asked by kelli 
math:mensuration plane shapes
a cone that has a base diameter8cm and height3cm is cut into a circle's sector, what is the angle of the sector
asked by shegster 
mechanics
a metal cutting machine has a stroke of 0.7 m. the resistance to cutting varies uniformly from 850N at the beginning of the stroke to 1600N when the cutter has moved 0.5 m. for the last 0.2 m of the stroke the resistance is constant at 1600N. Calculate the
asked by mayowa 
math
You are buying tickets for rides at a carnival. Tickets cost $2 each. You want to spend no more than $30 on tickets. Write an inequality to represent this situation.
asked by Anonymous