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Questions Asked on June 18, 2013

the heat of vaporization for water is 540 cal/g. how many kilocalories are needed to change 22g of liquid water to steam at
1. 2 answers
2. asked by jason
3. 6,013 views
The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight Sonata, manufactured by Phonola Record
1. 1 answer
2. asked by Ant
3. 5,562 views
The management of the UNICO department store has decided to enclose a 917 ft2 area outside the building for displaying potted
1. 2 answers
2. asked by Anonymous
3. 4,838 views
The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat
1. 2 answers
2. asked by Tommy
3. 3,995 views
Find the point on the line 4x+3y-4=0 which is closest to the point (5,2)
1. 2 answers
2. asked by Morgan
3. 3,013 views
On Team B 80% of the football players weigh more than 200 pounds. If 41 men are on the team, how many weigh more than 200
1. 5 answers
2. asked by sarah
3. 2,991 views
a polar satellite is launched at 850 km above Earth .find its orbital speed.
1. 2 answers
2. asked by Arshia fatima
3. 2,960 views
Find the relative extrema, if any, of the function. Use the second derivative test, if applicable. (If an answer does not exist,
1. 2 answers
2. asked by Anonymous
3. 2,956 views
A cement block accidentally falls from rest from the ledge of a 51.5 -m-high building. When the block is 12.9 m above the
1. 1 answer
2. asked by louis aaaa
3. 2,849 views
If a dog whistle has a frequency of 30000 hertz. What is the wavelength of the sound emitted (Approximate speed of sound is 340
1. 2 answers
2. asked by Anonymous
3. 2,720 views
The distribution of weekly salaries at a large company is right skewed with a mean of $1000 and a standard deviation of $350.
1. 2 answers
2. asked by Anonymous
3. 2,581 views
A company manufactirung snowboards has fixed costs of $200 per day and total cost of $3800 per day at a daily output of 20
1. 2 answers
2. asked by sandra
3. 2,320 views
1. A circuit contains a 10 �F capacitor and a 30 �F capacitor connected in parallel. What is the totalcapacitance of the
1. 2 answers
2. asked by mompati
3. 2,238 views
A preimage includes a line segment of length x and slope m. If the preimage is dilated by a scale factor of n, what are the
1. 3 answers
2. asked by ELIJAH
3. 2,220 views
a rectangular lot whose perimeter is 440 feet is fenced along three sides. an expensive fencing along the lot's length cost $16
1. 1 answer
2. asked by corea
3. 2,187 views
Determine the digits of Y from these clues.The digits of Y add to 18. The first digit is 3 times the third digit. The second
1. 3 answers
2. asked by bob
3. 2,151 views
Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard
1. 1 answer
2. asked by Anonymous
3. 2,010 views
Express your answer as a decimal (to the nearest hundredth).What part of an hour is 40 minutes?
1. 3 answers
2. asked by sarah
3. 1,944 views
When the Senior class decided to order T-shirts, they were quoted a price of $7.50 per shirt plus a setup fee. The total cost
1. 2 answers
2. asked by alex
3. 1,891 views
The latent heat of fusion of alcohol is 50 kcal/kg and its melting point is -54oC. It has a specific heat of 0.60 in its liquid
1. 1 answer
2. asked by Isis
3. 1,863 views
A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25
1. 2 answers
2. asked by love
3. 1,757 views
Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter
1. 1 answer
2. asked by Ant
3. 1,620 views
The phone company charges a flat rate of $2.50 plus and additional $0.50 each minute for a long-distance phone call.Write an
1. 2 answers
2. asked by Yasmen
3. 1,412 views
19. In a solenoid, where is the magnetic field strongest?A. Outside the coil C. At the north pole B. Inside the coil D. At the
1. 1 answer
2. asked by mompati
3. 1,396 views
A ball is thrown upward with an initial velocity of 14 m/s. At what time does the ball reach the high point in its flight? (Use
1. 2 answers
2. asked by cody
3. 1,342 views
A fence 3 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the
1. 3 answers
2. asked by Morgan
3. 1,277 views
George studied 1/4 hour on Monday and 3/8 hour on Tuesday. How long did he study altogether on both days?
1. 1 answer
2. asked by steven
3. 1,274 views
16. <21{5[1(03)59]}> Barney: Last winter, I slipped on the outside stairs of PineTree Café and broke my leg. My fall was caused
1. 0 answers
2. asked by Mallory
3. 1,246 views
Using the exact interest method (365 days), find the amount of interest on the following loanPrincipal Rate (%) Time (days)
1. 2 answers
2. asked by Anonymous
3. 1,142 views
A school has an enrolment of 450 students.4\9 of them are girls.0•6 of the girls are below the age 8 years.How many girls are
1. 1 answer
2. asked by Yannica
3. 1,139 views
Consider the following. (Give your answers correct to four decimal places.)(a) Determine the level of confidence given the
1. 2 answers
2. asked by Tom 84
3. 1,136 views
ABC is the segment of a circle with center O. This segment is enclosed in a rectangle APQC. Given that AC=32cm and AP = 8 cm,
1. 1 answer
2. asked by Shane
3. 1,090 views
A pulley system lifts a 500-lb block 1.0 foot with an effort of only 50 lb. If the 50 lb moves 30 feet, calculate the efficiency
1. 1 answer
2. asked by Isis
3. 1,088 views
I am confuse how to solve a relation function such as f(x) = 1x -12. show me example on how resolve this problem
1. 1 answer
2. asked by Xavier
3. 1,041 views
A thin massless horizontal pipe rotates about a vertical axis with angular speed ω as shown in the figure. A small bug, located
1. 0 answers
2. asked by Jon
3. 1,030 views
What is the rejection region for a two tailed test when a=0.05?a. [z] > 2.575 b. z>2.575 c. [z] > 1.96 d. [z]>1.645
1. 1 answer
2. asked by Rald
3. 1,013 views
Lynbrook West, an apartment complex, has 100 two-bedroom units. The monthly profit (in dollars) realized from renting out x
1. 0 answers
2. asked by Ant
3. 1,007 views
A football is punted at an angle of 44.6 with the horizontal. if it stays in the air for 3.6 seconds, what was the initial
1. 1 answer
2. asked by Nogard
3. 1,002 views
How would I simplify (1/2sqrtx^(-1/2))/(sqrt2x+9?
1. 3 answers
2. asked by Emmy
3. 989 views
Calculate the total energy of 4.0 kg object moving horizontally at 20 m/s 50 meters above the surface.Please help me!!!!!
1. 2 answers
2. asked by Isis
3. 986 views
Consider the following table and use the formulas that are given for computing the correlation coefficient. (Give your answer
1. 0 answers
2. asked by Tom 12
3. 985 views
just take H2O AND CH3CH2OH as example.why say that h2o can form two hydrogen bond per molecule but CH3CH2OH only one.i am
1. 1 answer
2. asked by amper
3. 983 views
I need this paragraph proof read if that's OK.also need to know if it's a fully devolved the topic a high school diploma is
1. 2 answers
2. asked by krystal
3. 977 views
Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter
1. 1 answer
2. asked by Anonymous
3. 977 views
Lynbrook West, an apartment complex, has 100 two-bedroom units. The monthly profit (in dollars) realized from renting out x
1. 1 answer
2. asked by Anonymous
3. 970 views
Let α and β be the roots of 3x2+4x+9=0. Then (1+α)(1+β) can be expressed in the form ab, where a and b are coprime positive
1. 1 answer
2. asked by jack
3. 964 views
Find two geometric progressions having: 54 as third term and 27/32 as ninth term.
1. 2 answers
2. asked by Shane
3. 961 views
Which of the following is among the impediments to government action on health care? (Points : 1)Frequency of divided government
1. 1 answer
2. asked by PAT
3. 948 views
A researcher believes that the average size of farms in the U.S. has increased from the 2002 mean of 471 acres. She took a
1. 0 answers
2. asked by Help
3. 936 views
If you want to teach whole classes how to use computers, where is the best place to locate the computers?
1. 3 answers
2. asked by Grace
3. 930 views
Solve the equation and check your solution 2/5+1/y-5=y-7/5y-25.
1. 1 answer
2. asked by glen
3. 923 views
there are some sheeps on a farm.these sheeps have 84 legs altogether,how many sheeps are there on the farm
1. 1 answer
2. asked by afia
3. 922 views
The position vector of the point A(3,4) relative to an origin O is a. (a) Express vector a or (OA) in terms of i and j. (b) Find
1. 1 answer
2. asked by Shane
3. 904 views
Determine which of the following four population size and sample size combinations would not require the use of the the finite
1. 2 answers
2. asked by Rald
3. 899 views
Use the following table to answer the questions. (Give your answers correct to two decimal places.)x 1 1 3 3 5 5 7 7 9 9 y 3 2 6
1. 1 answer
2. asked by Tom 12
3. 882 views
a number rounds off to 4000.the digits in the hundreds place is twice the digits in the tens place.the sum of the digits is
1. 1 answer
2. asked by shirley nicole silva
3. 841 views
Two forces F1 = -7.50i + 6.00j and F2 = 8.40i + 7.50j are acting on a mass of m = 6.20 kg. The forces are measured in newtons.
1. 1 answer
2. asked by Sam Cole
3. 832 views
Find the equation of the tangent line to the curve y=2tan(x) at the point (pi/4,2).
1. 1 answer
2. asked by Robin
3. 819 views
what is intelligent skeleton?
1. 1 answer
2. asked by hussain
3. 808 views
one number is 2 times as large as the other. what are the numbers?
1. 1 answer
2. asked by topaz
3. 807 views
1)Hay que ______ agua, ¿verdad?A. conserva B. conservar C. conservé D. conservo I said B. 2) Quiero dormir. Por favor, _____
1. 2 answers
2. asked by Eri
3. 802 views
Cr2O72-(aq) + I-(aq) -->Cr3+(aq) + IO3-(aq)What is the oxidizing species and the reducing species?
1. 1 answer
2. asked by Jessica
3. 799 views
Find the sum of all primes p, such that p divides up, where up is the p- th Fibonacci number.please tell me the answer it's
1. 1 answer
2. asked by jack
3. 795 views
decide whether the statement is true or false, A line has length and breadth
1. 1 answer
2. asked by osa
3. 794 views
The motion of a spring that is subject to dampening (such as a car's shock absorber)is often modeled by the product of an
1. 1 answer
2. asked by Robin
3. 794 views
This qusetion was about a journey between two towns. During the start of the journey the odometer reads 39593 ( the reverse of
1. 1 answer
2. asked by muthukumar
3. 784 views
Which of the following can we consider to be truly audiovisual?
1. 1 answer
2. asked by Tina
3. 777 views
what is the name of a rock that is not as warm as rocks
1. 0 answers
2. asked by hussain
3. 770 views
solve the system of equationsy = x + 4 y = x^2 + 9x +16
1. 2 answers
2. asked by meteka
3. 752 views
The third term of a sequence is 2(2/3) and the sixth term is 9. Find the first six terms when the sequence is; (a) arithmetic
1. 1 answer
2. asked by Shane
3. 741 views
Assume that z is the test statistic. (Give your answers correct to two decimal places.)(d) Calculate the value of z for Ho: ì =
1. 5 answers
2. asked by Tom 84
3. 732 views
In China, the rise of the idea of a new Buddha who would inaugurate a golden age and give power to his followers led toA. a
1. 1 answer
2. asked by kim
3. 705 views
A street light is at the top of a 16ft tall pole. A woman 6ft tall walks away from the pole with a speed of 6ft/sec along a
1. 1 answer
2. asked by Morgan
3. 697 views
Two 4.3 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction
1. 1 answer
2. asked by goliath sakala
3. 684 views
On May 23, Samantha Best borrowed $4,000 from the Tri City Credit Union at 13% for 160 days. The credit union uses the exact
1. 4 answers
2. asked by sophia
3. 661 views
The weekly demand for the Pulsar 25-in. color console television is given by the demand equationp = -0.03 x + 571\ \ \ \
1. 1 answer
2. asked by Ant
3. 654 views
Two trains leave stations 50 miles apart at the same time heading toward one another on parallel tracks.Train A is traveling 20
1. 1 answer
2. asked by key
3. 637 views
Find the outside and inside functions of the following to find their derivatives:1) sqrt(2x+9) 2) cos(cos(x)) 3) tan(x) I
1. 1 answer
2. asked by Robin
3. 633 views
How do you weight probabilities to add up to 1?Example: Chance of rain .25 Chance of person wearing purple hat .1 Chance of
1. 0 answers
2. asked by Karen
3. 601 views
Suppose that a sample of size 60 is drawn from a population with mean 73 and standard deviation 79. Find the value of , the
1. 1 answer
2. asked by Anonymous
3. 599 views
Jenny places 100 pennies on a table, with 30 showing heads and 70 showing tails. She chooses 40 distinct pennies uniformly at
1. 2 answers
2. asked by anonymous
3. 598 views
A rope goes over a circular pulley with a radius of 5.5If the pulley makes 6 revolutions without the rope slipping, what length
1. 1 answer
2. asked by Anonymous
3. 593 views
Maximize P=3x+2ysubject to 6x+3y<=24 3x+6y=<30 X,Y>=10
1. 1 answer
2. asked by Sandra
3. 592 views
Please check:1. North Korea became a communist country by following the example set by Cuba (FALSE) 2. Congress set up a NASA in
1. 2 answers
2. asked by Celest
3. 587 views
A 13 g bullet is stopped in a block of wood( m w = 3 . 1 kg). The speed of the bullet- plus-wood combination immediately after
1. 0 answers
2. asked by fabian
3. 585 views
Can someone please double check my answers (My answers are in Capital)1. If you produce a million products a day and you want to
1. 1 answer
2. asked by mysterychicken
3. 580 views
Can someone give me simple formulas for the below problems. What I found is too confusing.A sample of 145 values is randomly
1. 2 answers
2. asked by Gayle 79
3. 579 views
A cylinder with a diameter of 16 rolls with an angular speed of 0.055 on a level surface.If the cylinder experiences a uniform
1. 0 answers
2. asked by Anonymous
3. 579 views
What is the future value of $800 invested for 14 years at 11 percent compounded annually
1. 1 answer
2. asked by Denise
3. 576 views
Cashew nuts sell for $21.00/kg. Brazil nuts sell for $15.00/kg. a distributed sold at total of 120kg of cashew and Brazil nuts
1. 1 answer
2. asked by Anonymous
3. 567 views
Consider the following table for a single-factor ANOVA.Level of Factor Replicates 1 2 3 1 0 4 4 2 0 5 6 3 1 3 6 (a) Find x1,2.
1. 0 answers
2. asked by Sue 11
3. 564 views
Can someone please double check my answers.1. What pattern does the logarithmic function exhibit? a. y = b+a(lnx) b. y =
1. 0 answers
2. asked by mysterychicken
3. 561 views
A police car is traveling at a velocity of 15.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north.
1. 1 answer
2. asked by louis aaaa
3. 559 views
Two new drugs are being tested for their effect on the number of days a patient must remain hospitalized after surgery. A
1. 0 answers
2. asked by Tom 11
3. 558 views
A uniform meterstick pivoted at its center has a 80.0 mass suspended at the 27.0 position.At what position should a 85.0 mass be
1. 1 answer
2. asked by Anonymous
3. 547 views
Find the total amount required to pay off a loan of 16000 plus interest at the end of 8 years if the interest is compounded
1. 1 answer
2. asked by Shane
3. 544 views
how is 2.3-20=17.7 reasonable
1. 4 answers
2. asked by sofia
3. 542 views
1. A beaver tail is a big,flat bread.2. A beaver tail is big, flat bread. 3. Beaver tails are big, flat bread. 4. Beaver tails
1. 1 answer
2. asked by rfvv
3. 540 views
Identify one environmental or human factor that causes ill health,accidents,crises and disasters within your community or any
1. 1 answer
2. asked by Lydia
3. 539 views
A number rounds off to 4000.The digits in the hundreds place is twice the digits in the tens place.The sum of the digits is
1. 1 answer
2. asked by shirley nicole silva
3. 539 views

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