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Questions Asked on November 7, 2011

Suppose f(pi/3) = 3 and f '(pi/3) = −7,and let g(x) = f(x) sin x and h(x) = (cos x)/f(x). Find the following. a. g'(pi/3) b.
1. 2 answers
2. asked by Christina
3. 11,125 views
5. Let f be the function given by f(x) = x3- 7x + 6.a. Find the zeros of f b. Write an equation of the line tangent to the graph
1. 1 answer
2. asked by Yoona
3. 7,389 views
to what volume should you dilute 125mL of an 8.00M CuCl2 solution so that 50.0mL of the diluted solution contains 5.9g CuCl2I
1. 1 answer
2. asked by Monique
3. 7,380 views
high temperatures in a certain city for the of the month of august follow a uniform distribution over the interval 73 degreef to
1. 2 answers
2. asked by Anonymous
3. 6,931 views
Maricruz slides a 66 kg crate, m, up an inclined ramp 2.0 m long and attached to a platform 1.0 m above floor level, as shown in
1. 1 answer
2. asked by Iki
3. 5,397 views
Calculate the enthalpy of reaction for the following:N2 + 3H2 -> 2NH3 they are all gases. Is this reaction endothermic or
1. 3 answers
2. asked by Chioma
3. 4,374 views
Find The Derivativey = 5x^(2)e^(3x) Please Show Work
1. 3 answers
2. asked by Brett
3. 4,342 views
20. Calculate the range, variance, and standard deviation of the following data set:5, 5, 6, 6, 6, 8, 8, 8, 8, 10, 10, 11, 12,
1. 4 answers
2. asked by Anonymous
3. 4,285 views
A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 °C. The vapor pressure of pure water
1. 4 answers
2. asked by Anonymous
3. 4,183 views
Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this
1. 2 answers
2. asked by Anonymous
3. 3,841 views
If you had excess chlorine, how many moles of of aluminum chloride could be produced from 20.0 g of aluminum?If you had excess
1. 2 answers
2. asked by Lauren
3. 3,832 views
A quarterback throws a football toward a receiver with an initial speed of 18 m/s, at an angle of 29 degrees above the
1. 2 answers
2. asked by Gaby
3. 3,702 views
suppose x is a uniform random variable with c == 40 and d ==70 . what is the probability that a randomly selected observation is
1. 4 answers
2. asked by Anonymous
3. 3,368 views
Why does the octet rule not hold for many compounds containing elements in the third row of the periodic table and beyond?
1. 1 answer
2. asked by kali maa
3. 3,255 views
A student conducts an experiment to determine the enthalpy of neutralization for phosphoric acidreacting with sodium hydroxide.
1. 2 answers
2. asked by Chen
3. 2,863 views
Sau-Lan has a mass of 47 kg. She rides the up escalator at Ocean Park in Hong Kong. This is the world's longest escalator, with
1. 1 answer
2. asked by Iklishi
3. 2,850 views
Which one of the following liquids will have the highestfreezing point? A. pure H2O B. aqueous glucose (0.050 m) C. aqueous CoI2
1. 1 answer
2. asked by Sarah
3. 2,842 views
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The
1. 2 answers
2. asked by Anonymous
3. 2,821 views
Consider the reactionMg +2HCl ------>MgCl2 + H2 What is the minimum amount of 1.85M HCl is necessary to produce 28.5L of H2 at
1. 1 answer
2. asked by swtnblk
3. 2,684 views
Two crickets, Chirpy and Milada, jump from the top of a vertical cliff. Chirpy just drops and reaches the ground in 3.10 , while
1. 2 answers
2. asked by ale
3. 2,266 views
How much energy is released by the combustion of 1.00 mol of octane, C8H18?
1. 1 answer
2. asked by Caitlin
3. 2,174 views
What are the main rules of safety that we follow in science classes
1. 2 answers
2. asked by Laruen
3. 2,168 views
Mary's age is 2/3 that of Peter's. Two years ago Mary's age was 1/2 of what Peter's age will be in 5 years time. How old is
1. 1 answer
2. asked by Michael
3. 2,081 views
a billboard 20ft tall is located on top of a building with its lower edge 60 ft above the level of a viewers eye.how far from a
1. 1 answer
2. asked by rachel
3. 2,020 views
what is the binding energy of an electron in a photosensitive metal (in kj/mol) if the minimum frequency of light that can eject
1. 1 answer
2. asked by jj
3. 2,005 views
Refer to the following unbalanced equation: C6H14 + O2 CO2 + H2OWhat mass of oxygen (O2) is required to react completely with
1. 1 answer
2. asked by Anonymous
3. 1,999 views
Writing to explain if you know that 4x5=20, how can you use the commutative property to find 5x4
1. 2 answers
2. asked by Hong
3. 1,879 views
A survey was conducted to measure the number of hours per week adults spend on homecomputers. In the survey, the number of hours
1. 3 answers
2. asked by lindsay
3. 1,773 views
A 13.03 g sample contains only ethylene glycol (C2H6O2) and propylene glycol (C3H8O2). When the sample is added to 100.0g of
1. 1 answer
2. asked by Monique
3. 1,769 views
In the reaction:Zn+ 2HCL>ZnCl2+h2.What mass ZnCl2 is produced when 10g of zn reacted
1. 2 answers
2. asked by Luc
3. 1,752 views
Meiling and Meimei divide $69 into 2 shares. 3/4 of Meiling's share is equal to 2/5 of Meimei's share. How much does each get?
1. 3 answers
2. asked by Michael
3. 1,638 views
A Silver bowl has a mass of 1.78kg. It is shaped like a cylinder and has a diameter of 35.0 cm and a height of 8.00cm. It is
1. 2 answers
2. asked by ed
3. 1,628 views
Water at room temperature flows with a constant speed of 8 m/s through a nozzle with a square cross section, as shown in the
1. 1 answer
2. asked by mymi
3. 1,534 views
I was wondering if these sentences are labeled right with either predicate noun or predicate adjective?Their presence was
1. 1 answer
2. asked by tyler
3. 1,492 views
A certain car can go from 0 to 100 km/h in 10 s. If the engine delivered twice the power to the wheels, how many seconds would
1. 1 answer
2. asked by Anonymous
3. 1,451 views
What is the mass of nitrogen dioxide contained in a 4.32 L vesselat 48 °C and 1.40 atm ?
1. 2 answers
2. asked by Anonymous
3. 1,437 views
A 10.0 g cube of each of the following metals is heated to 100 °Cand dropped (without loss of heat during transfer) into
1. 2 answers
2. asked by Sarah
3. 1,314 views
A 6-sided die is rolled 14 times. What is the probability of seeing a "6" at least 2 times?I am sooo clueless please help!
1. 1 answer
2. asked by Adrianna
3. 1,267 views
I need to do a persuasive essay for my world history class on the Industrial Revolution and i want to know if it makes sense.The
1. 5 answers
2. asked by EV
3. 1,263 views
The solubility of nitrogen gas in water at 25 °C and 1 atm is6.8!10"4 mol/L. If the partial pressure of nitrogen gas in air
1. 1 answer
2. asked by Anonymous
3. 1,252 views
Hi I'm pretty sure the answer is A, but I'm not completely positive. Am i correct?Which of the following pairs of words can be
1. 2 answers
2. asked by Jon
3. 1,248 views
How many grams of NH3 can be produced from 3.26 moles of N2?How many grams of H2 are needed to produce 13.99 g of NH3?
1. 1 answer
2. asked by Natalie
3. 1,239 views
Can you please check my answers?1. Which is larger, the Red Sea or the Mediterranean Sea? The Mediterranean Sea 2. How many
1. 6 answers
2. asked by Reed
3. 1,238 views
So I have an experiment and we have to find the mechanical advantage.1. What is the MA when the load force is 7N and the effort
1. 1 answer
2. asked by Tinatike
3. 1,221 views
A sealed flask containing water and N2 gas in equilibrium is at a temperature of 25°C. If the concentration of N2 gas in the
1. 1 answer
2. asked by Sarah
3. 1,211 views
An object acted on by three forces moves with constant velocity. one force acting on the object is in the positive x direction
1. 1 answer
2. asked by taylor
3. 1,206 views
My teacher told us to bring in a current event of a spanish speaking country so does haiti count cuz its a latin american
1. 5 answers
2. asked by Page
3. 1,203 views
Before practicing his routine on the rings, a 67 kg gymnast hangs motionless, with one hand grasping each ring and his feet
1. 0 answers
2. asked by taylor
3. 1,202 views
perform the indicated operation and ifpossible,simplify please show all of your work. write your answer in lowest terms. 18/35
1. 2 answers
2. asked by Angela
3. 1,192 views
Bonjour!I have to find synonyms for the word Fantastique the synonyms should begin with g .... t... b... s... Thanks
1. 0 answers
2. asked by Ruth
3. 1,177 views
The Lappans buy three large sandwich wraps to serve at a picnic. Nine people in all will be at the picnic. Show three different
1. 1 answer
2. asked by zineddine kassou
3. 1,174 views
Will the aqueous solution of titanium(II) chloride and beryllium chloride be colored or colorless?
1. 1 answer
2. asked by Colby
3. 1,170 views
Find the average rate of change of g(x) = -2x2 + 36x - 142 on the interval from x = -5 to x = 10.
1. 1 answer
2. asked by Brianna
3. 1,166 views
a 40kg girl climbs a vertical ladder at .5 m/s. what is her power output?
1. 1 answer
2. asked by jill
3. 1,166 views
Which of the following operating system types is used in medical equipment or a cash register? (Points: 5)a.
1. 1 answer
2. asked by john
3. 1,164 views
A sample of air from the basement of a home is found tocontain 8.3 ppm of radon. What is the partial pressure of radon in the
1. 2 answers
2. asked by Anonymous
3. 1,151 views
You are considering quitting work for two years to earn an MBA. Your current job pays $25,000 per year (after taxes), but youcou
1. 0 answers
2. asked by Kira
3. 1,149 views
A reaction produced 55.7 mL of nitrogen gas, which was collected over water at 23oC. The measured barometric pressure was 742
1. 1 answer
2. asked by Sarah
3. 1,139 views
A 1.8-g balloon is filled with helium gas. When a mass of 4.8 g is attached to the balloon, the combined mass hangs in static
1. 1 answer
2. asked by mymi
3. 1,137 views
Optimum physical health usually occurs:a. between the ages of 15 and 21. b. between the ages of 18 and 25. c. between the ages
1. 3 answers
2. asked by Kasey
3. 1,137 views
Prove the following functions:(sinx+sin2x)/(1+cosx+cos2x)=tan x (cos3x/sinx)+(sin3x/cosx)=2cot2x tan2x=(2/cotx-tanx) theses are
1. 2 answers
2. asked by jared
3. 1,131 views
The list of words is:Nucleus, Mitochondria, Vacoule, Cell Wall. Which does not belong and why?
1. 2 answers
2. asked by Anonymous
3. 1,087 views
Mr. Cook was painting Arvada West High School, standing on top of a 25�]foot ladder. Why? We will neverknow. However, he was
1. 0 answers
2. asked by Thomas
3. 1,086 views
How do you set up a controlled experiment ?What's the purpose of a control group? How many variables should a controlled
1. 4 answers
2. asked by Laruen
3. 1,071 views
A 130.0 mL buffer solution is 0.100 M in NH3 amd 0.135 M in NH3 and 0.135 M in NH4Br. What mass of HCI could this buffer
1. 1 answer
2. asked by Samuel
3. 1,071 views
If someone could help me answer any one of these that would be great. :)1.Name and explain the information provided in the
1. 2 answers
2. asked by Alex
3. 1,070 views
solve this proof: PR is congruent to DE, PT is congruent to DF, Angle R is congruent to Angle E, Angle T is congruent to Angle
1. 3 answers
2. asked by Maddie
3. 1,066 views
4. For Questions 4-7, use the following data:The number of file conversions performed by a processor per day for 10 days was:
1. 1 answer
2. asked by Anonymous
3. 1,058 views
I need someone to help me with a thematic web on Me and my Family
1. 1 answer
2. asked by Maryann
3. 1,038 views
Sylvia has a jewelry collection of bracelets, necklaces, and earrings. She has 16 bracelets. The number of earrings is 2 times
1. 2 answers
2. asked by Marsha
3. 1,038 views
radium-266 may emit a photon of light with a frequency of 4.5x 10^19 s^-1 when it undergoes nuclear fission. what is the
1. 2 answers
2. asked by jj
3. 1,034 views
water in a paper conical filter drips into a cup. let x denote the height of the water in the cup. if 10 in^3 of water are
1. 2 answers
2. asked by rachel
3. 1,031 views
Hi I'm pretty sure the answer is A, but I'm not completely positive. Am i correct?Which of the following pairs of words can be
1. 1 answer
2. asked by Jon
3. 1,029 views
A cardboard box without a top is to have volume 500000 cubic cm. Find the dimensions which minimize the amount of material used.
1. 1 answer
2. asked by hanan
3. 1,009 views
I ugently need to know the pronunciation of the following words"Gujerat", "Gir Forest", and "Madhya Pradesh".I included four
1. 3 answers
2. asked by Henry2
3. 1,008 views
show that each of the following mathematical statement is true; a;(6 raise to 1 over 5)raise to 2 is equal to fifth root of 6
1. 1 answer
2. asked by sheila mae
3. 1,005 views
Assume that you have 2.75 g of the deadly gas hydrogen cyanide,HCN. What is the volume of the gas at STP?
1. 1 answer
2. asked by Christy
3. 999 views
Suppose that bicycles are produced by a perfectly competitive, constant cost industry. Which of the following will have a larger
1. 0 answers
2. asked by Erika
3. 996 views
Dr. Lange is a developmental psychologist. He specializes in cognitive development during the period of infancy. Like most
1. 2 answers
2. asked by Kasey
3. 996 views
A mother is 21 years older than her newborn dughter. How old will be the daughter when her age is 1/4 that of her mother's?
1. 1 answer
2. asked by Ilgan
3. 991 views
The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3.(a) What is the
1. 0 answers
2. asked by mymi
3. 986 views
An airplane is moving through the air at a velocity v = 227 m/s. Streamlines just over the top of the wing are compressed to 80%
1. 1 answer
2. asked by mymi
3. 976 views
find the ionization energy of I-, I, and I+I know you have to use E= hc/lambda, and c=lambda x v, but how do i get v?
1. 1 answer
2. asked by Ferdinand
3. 974 views
The scores on an economics examination are normally distributed with a mean of 66 and a standard deviation of 14. If the
1. 1 answer
2. asked by Anonymous
3. 973 views
The long-run supply curve for a good is a horizontal line at a price $3 per unit of the good. The demand curve for the good is
1. 0 answers
2. asked by Byron
3. 969 views
suppose a simple pendulum was released from an angle of 58 degrees, with a length of 0.75m and mass of .15kg. what would be the
1. 1 answer
2. asked by bec
3. 952 views
There are 20 amino acids that cells use to build the numerous amounts of proteins that are essential for life. If a protein
1. 0 answers
2. asked by Peter
3. 951 views
A 220-kg crate rests on a surface that is inclined above the horizontal at an angle of 19.4°. A horizontal force (magnitude =
1. 0 answers
2. asked by Nick
3. 931 views
Which functional group is most likely to be responsible for an organic molecule behaving as a base (-OH donator / H+ acceptor)?A
1. 1 answer
2. asked by Peter
3. 919 views
A 200 toy car is placed on a narrow 64--diameter track with wheel grooves that keep the car going in a circle. The 1.5 track is
1. 0 answers
2. asked by Hsieh
3. 915 views
Help me! Population of heights of college students is approximately normally distributed with a mean of 64.37 inches and
1. 1 answer
2. asked by anon
3. 906 views
after u guys check the site and you reply the post about what I ask for also what title should I think of for my piece since Im
1. 9 answers
2. asked by Laruen
3. 903 views
What is the area of a regular pentagon with a side length of 9.4 feet and an apothem length of 6.5 feet?
1. 3 answers
2. asked by Louisa
3. 902 views
TRASLATE THE FOLLOWING SENTENCE INTO ANEQUATION. dO NOT SOLVE TEN MORE THAN THREE TIMES A NUMBER IS 130.
1. 1 answer
2. asked by Angela
3. 884 views
Danette knows she is not at all like her parents. She could never be like them. She is her own unique person. Her style of
1. 1 answer
2. asked by Kasey
3. 884 views
Q1. Solve the system of equationd by addition method.-2x+y=6 -3x-4y=20 Select the correct choice below and, if necessary, fill
1. 1 answer
2. asked by Zedrick Dandridge
3. 864 views
A child plays on a bungee cord and oscillates with a certain frequency f. An adult with a mass that is 16 times greater than
1. 1 answer
2. asked by Anon
3. 847 views
suppose x is a uniform random variable with c=40 ana d= 70 find the probability that a randomly selected observation is between
1. 0 answers
2. asked by Anonymous
3. 841 views
Find the slope and y-intercept of the line in the given equation. y=-8/11 x-5
1. 1 answer
2. asked by sharday
3. 838 views
Hi I'm pretty sure the answer is A, but I'm not completely positive. Am i correct?Which of the following pairs of words can be
1. 0 answers
2. asked by Jon
3. 824 views

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