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Questions Asked on April 2, 2014

A stone is dropped into a lake, creating a circular ripple that travels outward at a speed of 40 cm/s. Find the rate at which
1. 2 answers
2. asked by Tim
3. 17,280 views
The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV
1. 1 answer
2. asked by Pal
3. 11,312 views
let f(x)=(x-1)^2, g(x)=e^(-2x), and h(x)=1+ ln(1-2x)find linearization of f, g, and h at a=0 Lf(x)= Lg(x)= Lh(x)= graph f,g, and
1. 2 answers
2. asked by Ahmed
3. 9,679 views
A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDFfQ(q)={3q2,0,if
1. 3 answers
2. asked by A
3. 8,643 views
The vertical coordinate (“height") of an object in free fall is described by an equation of the formx(t)=θ0+θ1t+θ2t2, where
1. 5 answers
2. asked by A
3. 7,923 views
Let Θ be a Bernoulli random variable that indicates which one of two hypotheses is true, and let P(Θ=1)=p. Under the
1. 8 answers
2. asked by A
3. 7,691 views
1.neverthe difference of two positive integers is _____ negative. A.always B.sometimes C.never
1. 29 answers
2. asked by matt
3. 7,538 views
Lane French had a bad credit rating and went to a local cash center. He took out a $100 loan payable in two weeks at $115. What
1. 2 answers
2. asked by marie
3. 7,053 views
How many real number solutions does the equation havey=-4x^2+7x-8 none one two infinite How many real number solutions does the
1. 4 answers
2. asked by Alex
3. 6,726 views
What will be the change in enthalpy when 100.0 g of butane, C4H10, is burned in oxygen as shown in the thermochemical equation
1. 3 answers
2. asked by Alex
3. 6,539 views
When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has
1. 1 answer
2. asked by Tenshi
3. 5,988 views
Suzanne wants to put a fence around her square garden. If the garden covers an area of 100 ft2, how many feet of fencing does
1. 13 answers
2. asked by zuha
3. 5,975 views
Carol Miller went to Europe and forgot to pay her $740 mortgage payment on her New Hampshire ski house. For her 59 days overdue
1. 1 answer
2. asked by marie
3. 5,758 views
I already figured out the answers to some but I need help with two more.1) A disk with an initial angular velocity ω0 = 4.5
1. 1 answer
2. asked by Michelle
3. 5,579 views
1. A boy pushes a car to slow it down while the car is rolling horizontally down the road. If the boy pushes backwards on the
1. 1 answer
2. asked by Jessica
3. 4,602 views
Two factory plants are making TV panels. Yesterday, Plant A produced 6000 fewer panels than Plant B did. Four percent of the
1. 2 answers
2. asked by Brice
3. 4,528 views
Alice has two coins. The probability of Heads for the first coin is 1/3, and the probability of Heads for the second is 2/3.
1. 4 answers
2. asked by A
3. 4,136 views
calculate the pH in a solution prepared by dissolving .10 mol of solid NH4Cl in .500 L of .40 M NH3. Assuming no volume change.
1. 3 answers
2. asked by Anisha
3. 3,878 views
How many real number solutions does the equation havey=3x^2+18x+27 none one two infinite
1. 8 answers
2. asked by Alex
3. 3,840 views
Write a balanced chemical equation that represents the self-ionization of water. (Use the lowest possible coefficients. Include
1. 1 answer
2. asked by Grace
3. 3,777 views
Help!Ships A and B leave port at the same time and sail on straight paths making an angle of 60 degrees with each other. HOw far
1. 2 answers
2. asked by Anonymous
3. 3,511 views
What property is shown in the equation below?6x0=0 a)zero property of multiplication b)inverse property of multiplication
1. 2 answers
2. asked by Mario
3. 2,929 views
Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval?f(x) = 2x^2 − 5x + 1, [0, 2] If it
1. 1 answer
2. asked by Layla
3. 2,859 views
Suppose that the weight (in pounds) of an airplane is a linear function of the total amount of fuel (in gallons) in its tank.
1. 1 answer
2. asked by kent
3. 2,690 views
This question is based on the following four sentences.1. Netta and Jim argued over their views of free trade. 2. Netta and Jim
1. 4 answers
2. asked by Emily
3. 2,521 views
write a number on each section of a hexagon so that the probability of getting an odd number is 1/3
1. 2 answers
2. asked by jes
3. 2,352 views
Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,307 interest on $45,000 at
1. 2 answers
2. asked by marie
3. 2,310 views
A shirt is on sale for 40% off. The sale price is $12. What was the original price? What was the amount of the discount?
1. 3 answers
2. asked by May
3. 2,235 views
This question is based on the following information about The Call of the Wild, a book by JackLondon. The Call of the Wild is a
1. 3 answers
2. asked by Emily
3. 2,170 views
Let T1,T2,…,Tn be i.i.d. observations, each drawn from a common normal distribution with mean zero. With probability 1/2 this
1. 6 answers
2. asked by A
3. 2,165 views
Solve:6c3 A.120 B.720 C.20 D.240 How many ways can you choose 3 dishes from a menu of 8? A.24 B.336 C.144 D.56 Solve 6p4 A.240
1. 1 answer
2. asked by Runtafus
3. 2,120 views
the current ratio of boys to girls at a certain school is 2 to 5 . if 12 additional boys were added to the school, the new ratio
1. 2 answers
2. asked by Anonymous
3. 2,081 views
Are my answers correct? I had the most trouble with the accents in part II. Thank you.Part I Llene los espacios en blanco con la
1. 2 answers
2. asked by Anna
3. 2,071 views
In a photograph, a man is 1.3cm tall and a flagpole is 4.8cm tall. If the man is 190 cm in real life, how tall is the flagpole,
1. 1 answer
2. asked by kagney
3. 1,977 views
Ravi is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.Compan
1. 2 answers
2. asked by Bryan
3. 1,768 views
A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular acceleration. After 20.0 s, the
1. 1 answer
2. asked by Ted
3. 1,718 views
A model airplane is made on a scale of 1:128.A)what is the scale factor? b) if the airplane model has a wingspan of 30cm,what is
1. 4 answers
2. asked by Cleopatra
3. 1,716 views
When blood flows along a blood vessel, the flux F (the volume of blood per unit time that flows past a given point) is
1. 1 answer
2. asked by Isik
3. 1,712 views
Please help!pam is mixing 3 1/5 batches of paint.if one batch calls for 2 3/4 tablespoons of detergent to add to the tempura
1. 1 answer
2. asked by Anonymous
3. 1,683 views
Did I do this correctly??Select the correctly written sentence in this group. A. Spending way too much money on his old car,
1. 0 answers
2. asked by Ayesha
3. 1,676 views
A physics student stands at the top of a hill that has an elevation of 56 meters. he throws a rock and it goes up into the air
1. 2 answers
2. asked by Alex
3. 1,622 views
Let C(t) be the total value of US currency (coins and banknotes) in circulation at time. The table gives values of this function
1. 3 answers
2. asked by juli
3. 1,521 views
Another star cluster ("star cluster 2") lies 7.4 Mega-parsecs from the starship, and has an apparent radius of 6.3 arc seconds.
1. 1 answer
2. asked by keitanako
3. 1,500 views
I am a quadrilateral. All my sides are equal. I have no parallel sides. I have one line of symmtry. What am I?
1. 3 answers
2. asked by What am I ?
3. 1,401 views
A satellite is given a boost of 540 MJ of energy to move it from its initial orbit at an altitude of 150 km to a higher altitude
1. 1 answer
2. asked by Dan
3. 1,396 views
9. Question : Cheryl runs a race on a circular 400.0 m track. She starts running east at the starting line and stops 20.0 m west
1. 1 answer
2. asked by Kiley
3. 1,350 views
Sam buys a lamp during the sale. There was a discount of 20%. If the original price is $4, what is the sale price?- Please put
1. 2 answers
2. asked by Alison Caylen
3. 1,338 views
How many milliliters of 0.326 M HCl would be required to titrate 5.48 g KOH?
1. 1 answer
2. asked by Grace
3. 1,325 views
An example of a renewable and inexhaustible resource that requires the construction of dams is _________________________ energy.
1. 3 answers
2. asked by Anonymous
3. 1,278 views
A pen is marked down 40% from the original price. The original price was $50. What is the sale price before sales tax?
1. 3 answers
2. asked by Anonymous
3. 1,191 views
how was the south carolina constitution of 1868 different from earlier versions?
1. 4 answers
2. asked by laila
3. 1,166 views
Choose the logical word or words to complete each sentence.1. A mis hermanos y a mí nos____ aprender verbos nuevos. 1 encanta 2
1. 2 answers
2. asked by Ashley
3. 1,160 views
. A new medical test provides a false positive result for Hepatitis 2% of the time. That is, a perfectly healthysubject being
1. 0 answers
2. asked by helen
3. 1,147 views
can a parallel rays form an angle explain
1. 1 answer
2. asked by Elina
3. 1,124 views
1. List in order of importance three ways the United States was a factor in the canadian Confederation. defend your choices with
1. 4 answers
2. asked by Anonymous
3. 1,119 views
This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 2, when divided by 5
1. 3 answers
2. asked by Ashley
3. 1,115 views
A plane flies horizontally at an altitude of 6 km and passes directly over a tracking telescope on the ground. When the angle of
1. 4 answers
2. asked by Ulay
3. 1,110 views
Below is the last stanza of a poem, "Dover Beach," written in 1876 by Matthew Arnold.Ah, love, let us be true To one another!
1. 2 answers
2. asked by Emily
3. 1,093 views
A 75.0 mL volume of 0.200 M NH3 (Kb=1.8x10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 28.0 mL of
1. 2 answers
2. asked by Billy Bob Reynolds
3. 1,083 views
suppose a normal distrubtion has a mean of 25 and a standard deviation of 2. what is the area under the curve between 23 and 27
1. 1 answer
2. asked by elizabeth
3. 1,064 views
The demand for rice in Japan for a particular year was estimated by the general function q = f (p) =Ap^(-0.13), where p
1. 1 answer
2. asked by Merfit
3. 1,042 views
If the activation energy for a given compound is found to be 42.0 kJ/mol, with a frequency factor of 8.0 × 1010 s-1, what is
1. 2 answers
2. asked by Kelsei
3. 1,041 views
About 7.5 gallons of water occupy one cubic foot. About how many gallons of water are in a clindrical water tank with dimensions
1. 2 answers
2. asked by andra
3. 1,023 views
When a small object is launched from the surface of a fictitious planet with a speed of 52.0 m/s, its final speed when it is
1. 1 answer
2. asked by Ying
3. 988 views
The mass of an iron cube having an edge length 1.8 cm is 70 g. Find itd density.
1. 4 answers
2. asked by Naeem
3. 985 views
can someone explain this to me?When the temperature is 68°F, the speed of sound in air is approximately 343 meters per second.
1. 35 answers
2. asked by matt
3. 983 views
If my original sample contained 7.1 grams of potassium chlorate. How many moles of oxygen gas would I expect to have evolved?
1. 1 answer
2. asked by bekah
3. 978 views
When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has
1. 0 answers
2. asked by Tenshi
3. 956 views
A submarine is stranded on the bottom of the ocean with its hatch25.0 m below the surface. Calculate the force needed to open
1. 0 answers
2. asked by Mohanad
3. 941 views
Find the absolute maximum and absolute minimum values of f on the given interval.f(t) = (t square root of (64 − t^2))
1. 1 answer
2. asked by Tanya
3. 911 views
show that the acceleration is 7.5 m/s² for a ball that starts from rest and rolls down a ramp and gains a speed of 30 m/s in 4s
1. 1 answer
2. asked by Tracelle
3. 909 views
If a solution containing 118.44 g of mercury(II) perchlorate is allowed to react completely with a solution containing 17.796 g
1. 1 answer
2. asked by Noelle
3. 905 views
For the reaction:2H^+(aq)+Zn(s)----->He2(g)+Zn^2+(aq) a) Write the reduction half-reaction b) Write the oxidation half-reaction
1. 1 answer
2. asked by Anna
3. 883 views
Sue invested $1000 at 6% per year compounded yearly.Find the values of joe's investment at the end of each of the first five
1. 2 answers
2. asked by Tyalysia
3. 881 views
Madison pushes with a 160-N horizontal force on a 20-kg crate of coffee resting on a warehouse floor.the floor of friction force
1. 1 answer
2. asked by Tracelle
3. 859 views
The 20th term of an arithmetic sequence is 27 and the first term is -11. What is the common difference??
1. 1 answer
2. asked by Aly
3. 849 views
On September 14, Jennifer Rick went to Park Bank to borrow $2,500 at formula9.mml interest. Jennifer plans to repay the loan on
1. 0 answers
2. asked by marie
3. 841 views
Can I get some corrections?1. ¿Qué estás haciendo? A. Estás sirviendo la cena. B. Estáis leyendo el texto. C. Me estoy
1. 2 answers
2. asked by James
3. 838 views
Flying against the wind, a jet travels 3220 miles in 7 hours. Flying with the wind, the same jet travels 2820 miles in 3 hours.
1. 1 answer
2. asked by Jamie
3. 808 views
How you solve P4(s)+5O2(g)------>P4O10(g) .if 2.50 grams of phosphorus is ignited in a flask how many grams of P4O10 are formed
1. 1 answer
2. asked by Anonymous
3. 799 views
Suppose you divide a polynomial by a binomial. How do you know if the binomial is a factor of the polynomial? Create a sample
1. 1 answer
2. asked by Gabby
3. 761 views
Dalton's Law of Partial Pressureconsider the following container of helium at 45C. intially the valve is closed. After the valve
1. 1 answer
2. asked by linda
3. 760 views
1. The number of students present in class & the number of empty chairsType of correlation: Justification: Independent variable:
1. 1 answer
2. asked by Anonymous
3. 759 views
The formula r=2sqrt(...)5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of
1. 3 answers
2. asked by Teddy
3. 746 views
For each combination of sample size and sample proportion, find the margin of error for the 95% confidence level. (a) n=100 and
1. 2 answers
2. asked by Nicky
3. 744 views
Please check my answer, I am not sure for this one.In 1784 the British forced American merchants to pay duties on a. trade goods
1. 3 answers
2. asked by Brady
3. 744 views
Geothermal power would be classified as a(n) _____________________ resource because its supply will not run out.renewable
1. 1 answer
2. asked by Anonymous
3. 737 views
calculate the pH in a solution prepared by dissolving .10 mol of solid NH4Cl in .500 L of .40 M NH3. Assuming no volume change.
1. 4 answers
2. asked by Anisha
3. 725 views
simplify: 6sqrt7-sqrt7A. 6 sqrt7 B. 5 sqrt 7 C. 5 D. 6 Simplify: 2sqrt12+ sqrt3 A.5sqrt3 B. 3sqrt3 C. 2sqrt15 D. 3sqrt15 Need
1. 2 answers
2. asked by ciara
3. 725 views
Give the phenotype and genotype for the F2 generation of a person with Type a heterozygous blood and a type O blood type.
1. 0 answers
2. asked by maya
3. 725 views
I need some tips on dong the best I could do on the common core state exam. Please do the best you can to give tips. And if you
1. 6 answers
2. asked by Holly
3. 718 views
This question is based on the following paragraph.(1) After my interview with these four young people, I reflected on the quiet
1. 6 answers
2. asked by Emily
3. 716 views
A uniform beam of length L = 8.00 m and weight 3.80 102 N is carried by two workers, Sam and Joe, as shown in the figure below.
1. 0 answers
2. asked by Joe
3. 705 views
what are the odds i favor of picking an S in Mississippi?
1. 2 answers
2. asked by steve
3. 699 views
The flywheel of a steam engine runs with a constant angular speed of 112 rev/ min . When steam is shut off, the friction of the
1. 1 answer
2. asked by Ted
3. 697 views
Consider the following.f(x) = 8x (square root of (x − x^2)) (a) Use a graph to find the absolute maximum and minimum values of
1. 1 answer
2. asked by Tim
3. 693 views
9 points) In a normally distributed data set, find the value of the standard deviation if the following information is given.a.
1. 1 answer
2. asked by Sarah Nichols
3. 688 views
Consider the following distribution of objects: a 4.00-kg object with its center of gravity at (0, 0) m, a 1.20-kg object at (0,
1. 0 answers
2. asked by Joe
3. 674 views
A 2115 kg car moving east at 10.61 m/s col- lides with a 3169 kg car moving north. The cars stick together and move as a unit
1. 1 answer
2. asked by Sarah
3. 672 views
Adam and Bob went apple picking in an orchard. At the end of the day, they realized that if Adam had picked 50 more apples, he
1. 1 answer
2. asked by anna
3. 671 views

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