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2011
January

Questions Asked on January 20, 2011

The sum of the interior angles of polygon is 1800. Find the number of sides in the polygon and, what do you call that polygon?
1. 6 answers
2. asked by -G
3. 8,055 views
A. Strong Base1.) What is the concentration of a solution of KOH for which the pH is 11.89? 2.) What is the pH of a 0.011M
1. 2 answers
2. asked by jaycab
3. 4,506 views
A solution formed by dissolving an antacid tablet has a pH of 9.18. Calculate [H+].
1. 5 answers
2. asked by jaycab
3. 3,853 views
Someone attaches a 27 kg bale of hay to one end of a rope passing over a frictionless pulley connected to a beam in a hay barn.
1. 2 answers
2. asked by ash
3. 3,750 views
Write a fraction equal to 1 that has a denominator of 7.
1. 8 answers
2. asked by Amy
3. 3,716 views
rectangle ABCD is similar to rectangle wxyz , with AB corresponding to wx. if AB=24,BC=30 and wx=16 , what is the area of the
1. 4 answers
2. asked by NEED HELPPPPPPPPPPPPPPPP
3. 3,362 views
the sum of two fractions is 7/12. therre difference is 1/12. they have the same denominators. what are the two fractions?
1. 10 answers
2. asked by jayjay
3. 3,338 views
a stunt car driver testing the use of air bags drives a car at a constant speed of 25m/s for a total of 100 meters. he applies
1. 1 answer
2. asked by shannon
3. 3,251 views
How many moles of oxygen can be obtained by the decomposition of 7.5 mol of reactant in the following reaction?2KClO3 -> 2KCl +
1. 2 answers
2. asked by Maria
3. 3,237 views
The average human requires 120.0 grams of glucose (C6H12O6) per day. How many grams of CO2 ( in the photosynthesis reaction) are
1. 3 answers
2. asked by Artie
3. 3,053 views
A 0.3 ml dose of a drug is injected into a patient steadily for 0.35 seconds. At the end of this time, the quantity, Q, of the
1. 1 answer
2. asked by Brittany
3. 3,033 views
A person pushes a 14.0-kg lawn mower at constant speed with a force of F = 88.0 N directed along the handle, which is atan angle
1. 3 answers
2. asked by mrmr
3. 2,994 views
g(t)=2+cos t; [0,pi]Can you help me find the average rate of change of the function over the given interval?
1. 1 answer
2. asked by Kelly
3. 2,903 views
The following reaction mechanism has been proposed for a reaction:(slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A.
1. 1 answer
2. asked by Michael
3. 2,647 views
i am an odd number with digits 4, 5, & 6 i am more than 550 and less than 650 what number am i
1. 4 answers
2. asked by kmk
3. 2,406 views
What number is the solution to the equation -9(k-17) =-54a)-26 b)23 c)28 d)37
1. 3 answers
2. asked by Anonymous
3. 2,215 views
What are the x and y components of a velocity vector of magnitude 1.00 x 10^2 km/h and direction of 240?
1. 1 answer
2. asked by freddy
3. 2,208 views
determine the value of x for the following reaction: 4C + S8-> 4CS23.2 mol S8 yield x mol CS2
1. 1 answer
2. asked by Maria
3. 2,197 views
A survey of 1000 television viewers conducted by a local television station produced the following data:•40% watch the news at
1. 1 answer
2. asked by Rania
3. 2,166 views
This is the least mountainous country of Southern Europe.1) Greece 2) Italy 3) Portugal 4) Spain in my book, it says all of them
1. 2 answers
2. asked by Grace
3. 1,995 views
A cylinder has surface area of 402 cm2. The height is three times greater than the radius.What is the height of the cylinder?
1. 3 answers
2. asked by Sydney
3. 1,961 views
Solve: 2 sin x - 1 = 0 for 0 degrees is less than or equal to x is less than 360 degrees.
1. 1 answer
2. asked by CJ
3. 1,901 views
What net force is needed to accelerate a 25kg cart at 14m/s2?
1. 4 answers
2. asked by ton
3. 1,898 views
The "reaction time" of the average automobile driver is about 0.700 s. (The reaction time is the interval between the perception
1. 1 answer
2. asked by mely
3. 1,884 views
a sample of freshly pressed apple juice has a pH of 3.76. Calculate [H+].
1. 1 answer
2. asked by jaycab
3. 1,852 views
cos A = -4/5 for angle A in Quadrant II, find sin 2A
1. 2 answers
2. asked by Anonymous
3. 1,834 views
Copper reacts with sulfuric acid according to the following equation: 2H3SO4 + Cu-> CuSO4 + 2H2O + SO2 How many grams of sulfur
1. 2 answers
2. asked by Jazmin
3. 1,784 views
Which of the following coordinates are intercepts of the linear relation2x- 3y + 30 = 0 ? I. (0 , 10) II.(0 , 2/3) III.(-10 , 0)
1. 3 answers
2. asked by Anonymous
3. 1,713 views
A water sample contains 102mg of CaSO4 per litre. Calculate the hardness interms of CaCO3 equivalent.
1. 2 answers
2. asked by Anonymous
3. 1,624 views
SALT HYDROLYSIS1.) Calculate the pH of a 0.24M sodium formate (HCOONa) solution. Kb=5.9x10^-11. 2.) Calculate the pH of 0.25M
1. 1 answer
2. asked by jaycab
3. 1,618 views
Weak Acid1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. Calculate the Ka of the acid. 2.) The pH of 0.100M solution of
1. 2 answers
2. asked by jaycab
3. 1,584 views
Weak Acid1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. Calculate the Ka of the acid. 2.) The pH of 0.100M solution of
1. 1 answer
2. asked by jaycab
3. 1,537 views
Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g
1. 1 answer
2. asked by Jazmin
3. 1,472 views
Tab 1: Linear Program: 50 pointsConsider the Linear Program: Max 2A + 3B s.t. 1A + 2B <= 6 5A + 3B <= 15 A, B >= 0 Use the
1. 2 answers
2. asked by Patrick
3. 1,465 views
According to Car and Driver, an Alfa Romeo going 70 mph requires 177 feet to stop. Assuming that the stopping distance is
1. 1 answer
2. asked by Jamie
3. 1,453 views
Write electron configurations for the following ions, and determine which have noble-gas configurations. (Type your answer using
1. 2 answers
2. asked by rebekah
3. 1,391 views
The acceleration acting on a falling object due to gravity varies inversely with the square of the object's distance from the
1. 1 answer
2. asked by Anonymous
3. 1,374 views
Four coulombs of positive charge flow from the +6 V positive terminal of a battery to the negative terminal at 0V. What is the
1. 1 answer
2. asked by Adriana
3. 1,358 views
What is the boiling point of a solution composed of 15.0g urea, (NH2)2CO, in .500kg of water?
1. 2 answers
2. asked by Evelyn
3. 1,341 views
Provide a class called Letter for authoring a simple letter. The letter class has three data fields, the name of the sender, the
1. 2 answers
2. asked by JJ
3. 1,276 views
Solution Density(g/L) Boiling Point Freezing Point1.0m C2H5OH(aq) 1.05 100.5 -1.8 1.0m HCI(aq) 1.03 101.0 -3.7 1.0m NaCl(aq)
1. 1 answer
2. asked by Nicole
3. 1,271 views
The number of nuts in a package of Nutty's premium cashews is normally distributed with mean of 432.4 nuts and standard
1. 1 answer
2. asked by Celina
3. 1,258 views
Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s)If 112 g CaO reacts with 224 g
1. 2 answers
2. asked by Maria
3. 1,237 views
A couch with a mass of 100 kg is placed on an adjustable ramp attached to a truck. As one end raises, the couch begins to move
1. 2 answers
2. asked by ash
3. 1,227 views
In 1954, Roger Bannister became the first human to run a mile in less than 4 minutes. Suppose that a runner on a straight track
1. 3 answers
2. asked by andrea
3. 1,221 views
could you please help with these questions? In works like "To Build a Fire," Naturalist writers such as Jack London advocated
1. 6 answers
2. asked by Nikki
3. 1,215 views
There are 51 students in a certain class. The number of females is 5 less than 3 times the number of males. find the number of
1. 3 answers
2. asked by Hossein
3. 1,211 views
1) The tone in the song of myself number 52 is best described as a. lightheartedb. bombastic c. detached d. intimate 2) Which
1. 2 answers
2. asked by muna
3. 1,204 views
A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is the fractional change in a person's apparent weight: a) at
1. 1 answer
2. asked by Ricky
3. 1,200 views
Can you please check these sentences for me, please? Thank you.1)When you go to the supermarket, you insert a 50-cent coin into
1. 1 answer
2. asked by Franco
3. 1,199 views
1.Humans breathe about 15 breathe in a minute.The average breath at rest contains 0.76 liter of air.About how many liters of air
1. 1 answer
2. asked by Anonymous 1
3. 1,197 views
A charge of -3.10 nC and a charge of -6.65 nC are separated by a distance of 80.0 cm. Find the position at which a third charge
1. 1 answer
2. asked by Stefan
3. 1,184 views
A shoe company will make a new type of running shoe. The fixed cost for the production will be $54,000. The marginal cost will
1. 0 answers
2. asked by kenny
3. 1,176 views
4NH3+7O2 yields 4NO2+6H2OIf 8g of NH3 reacted with excess O2, how many g of H2O will be produced?
1. 2 answers
2. asked by Katelyn
3. 1,172 views
Which economic question does the decision to produce butter instead of guns answer?1.What to produce? 2.How to produce? 3.For
1. 1 answer
2. asked by Johanna
3. 1,165 views
A tennis player places a 54 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally
1. 0 answers
2. asked by Anonymous
3. 1,148 views
Mary would like to save $10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end
1. 1 answer
2. asked by Aly
3. 1,145 views
What is the main value of knowing the general meaning of a word's prefix or suffix?A. You can sort out adjectives from adverbs.
1. 2 answers
2. asked by Anonymous
3. 1,143 views
A mutual consent registry is relevant to obtaining medical information about A. substance abuse. B. psychological conditions
1. 1 answer
2. asked by Betts
3. 1,135 views
Solve: sin x - 2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi.
1. 0 answers
2. asked by CJ
3. 1,126 views
what number is the solution to the equation? -9(k-17)= -54a)-26 b)23 c)28 d)37
1. 2 answers
2. asked by Anonymous
3. 1,105 views
Choose the compound inequality that repesents the situation.all real numbers at least –6 and at most 3 –6 >x > 3 –6 >x > 3
1. 3 answers
2. asked by tiffany
3. 1,101 views
Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g
1. 1 answer
2. asked by Jazmin
3. 1,057 views
Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s)If 112 g CaO reacts with 224 g
1. 1 answer
2. asked by Maria
3. 1,056 views
what was the rising action(the problem present) in the story before we were free please?
1. 0 answers
2. asked by lola
3. 1,049 views
What adjustment would you make to the Bunsen burner(a) to correct a flame with an orange tip (b) to correct a ragged, noisy
1. 1 answer
2. asked by John
3. 1,048 views
A person is doing leg lifts with 3.0-kg ankle weights. She is sitting in a chair with her legs bent at a right angle initially.
1. 0 answers
2. asked by Trace
3. 1,047 views
I must do a model of Giza Pyramid to scale. I have the dimensions and other facts. I would like to be able to detach a side of
1. 1 answer
2. asked by Brayan
3. 1,038 views
Mr. Jones, angry at Dr. Bob, throws a punch at him but misses. Dr. Bob sue for battery. Why will Dr. Bob lose?
1. 1 answer
2. asked by stacie
3. 1,026 views
What mass of steam initially at 125 degree celcius is needed to warm 250g of water in 100g beaker from 22 degrees celcius to 50
1. 1 answer
2. asked by Nomsa
3. 1,023 views
Verify that 7pi/6 is a solution to2sin2x–sinx=1.
1. 0 answers
2. asked by Tabitha
3. 1,021 views
'the mass of the Earth is approximately 80 times the mass of the moon and the earth's radius 3.7 times that of the moon. if the
1. 1 answer
2. asked by Anonymous
3. 986 views
after school chase spends 20 min reading 30 min practicing the piano 15 min cleaning his room, and 40 min doing his homework,
1. 4 answers
2. asked by ashley
3. 979 views
An electromagnet can be made by wrapping insulated wire around an iron nail and connecting the ends of the wire to a 6-volt
1. 0 answers
2. asked by tiffany
3. 972 views
Compare and contrast the terms aerobic process and anaerobic process.
1. 0 answers
2. asked by tiffany
3. 962 views
Find the percent of markup.Wholesale price: $34 Selling price: $42.50
1. 3 answers
2. asked by Please help!!!
3. 961 views
AT 40 DEGREES HOW MUCH POTASSIUM CHLORIDE CAN BE DISSOLVED IN 300G OF WATER
1. 1 answer
2. asked by ROB
3. 942 views
The sum of the squares of three consecutive integers is 194. what are the integers?
1. 3 answers
2. asked by ted
3. 942 views
2 6 4 12 10 30 28 if the pattern continues, what is the next number likely to be?
1. 3 answers
2. asked by andarion
3. 941 views
One liter of water at 47 degree C is used to make iced tea. How much ice at 0 degree C must be added to lower the temperature of
1. 0 answers
2. asked by rukia
3. 911 views
What is the first term of an arithmetic sequence with a common difference of 5 and a sixth term of 40 ?
1. 1 answer
2. asked by Jasmine
3. 910 views
the trees are long and their branches are tall.sentence fragment anywhere?
1. 1 answer
2. asked by Anonymous
3. 896 views
Given a right triangle whose side lengths are integral multiples of 7, how many units are in the smallest possible perimeter
1. 2 answers
2. asked by algebra
3. 896 views
The magnitude of the velocity of a particlewhich starts from rest 2 ft below the origin when t = 0 and moves along a vertical
1. 4 answers
2. asked by stan
3. 875 views
Two spherical objects have masses of 300 kg and 1000 kg. Their centers are separated by a distance of 5m. find the gravitational
1. 0 answers
2. asked by Al Daq
3. 868 views
MOMENTSA uniform rod 8m long weighing 5kg is supported horizontally by 2 vertical parallel strings @ p & Q and @ distances of 2m
1. 1 answer
2. asked by Onuchukwu Victor
3. 846 views
In an experiment, 238 mL of 0.45 molar hydrochloric acid completely reacts with excess iron to produce hydrogen gas and iron
1. 3 answers
2. asked by Tichele
3. 835 views
how do you find the square root of 49x^5?
1. 3 answers
2. asked by matt
3. 835 views
The position of a particle is given by the function x = ( 6 t^3 - 3 t^2 + 2) m, where t is in s.(a) At what time or times is vx
1. 1 answer
2. asked by Jessica
3. 830 views
1) In song of myself number 33 whitman a. refuses ti help the skipper b. is repulsed by the suffering he describes c. take on
1. 6 answers
2. asked by caroline
3. 825 views
The following reaction mechanism has been proposed for a reaction:(slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A.
1. 1 answer
2. asked by Michael
3. 825 views
Consider a 50 L tank which hold 20 g of hydrogen gas, 20 g of carbon dioxide gas, and 20 g of krypton gas, at a total pressure
1. 1 answer
2. asked by Hunter
3. 819 views
if a triangle has side lengths of 6cm, 9cm and x cm, what are possible values for x?
1. 4 answers
2. asked by Bob
3. 812 views
what multiplication fact can you double to find 4 x7?
1. 5 answers
2. asked by kel
3. 805 views
6. A lottery offers two options for the prize.Option A: $1000 a week for life Option B: $ 600 000 in one lump sum. The current
1. 1 answer
2. asked by stephy
3. 803 views
1) how did the fact that fur trading companieswere econimic imperialists affect the development of westerm Canada?2) how did the
1. 1 answer
2. asked by sue
3. 801 views
Discuss three types of fossils and how they are formed.
1. 0 answers
2. asked by tiffany
3. 786 views
The Acme Machinery Company is a closed shop. This means that:A.union members are not employed. B.only union members are
1. 5 answers
2. asked by Frances
3. 784 views
During heating a 5 g solid gives off oxygen gas. The mass of the residue after heating is 3.5 g. What is the mass of the oxygeb
1. 2 answers
2. asked by Ceci
3. 780 views
for starting from rest and moving in a straight line,runner achieves a velocity of 7m/s in a time of 2 seconds .what is the
1. 1 answer
2. asked by mohamed
3. 779 views

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