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Questions Asked on January 31, 2013

1. Which of the following expressions is written in scientific notation?1. 73.4 x 105 2. 0.09 × 107 3. 80 x 103 4. 4.22 x
1. 53 answers
2. asked by SAMHAM
3. 20,333 views
On Mars, the acceleration due to gravity is 3.71 m/s2. How far would a rock fall in 3 s if you dropped it on Mars?
1. 1 answer
2. asked by Pete
3. 6,502 views
An empty relative density bottle weighs 25g.it weighs 65g when filled with a liquid and 75g when with water.caculate the density
1. 8 answers
2. asked by Samuel
3. 5,523 views
fill the sequence 8, 23, 44,74, 116 next two terms of sequence
1. 12 answers
2. asked by mira
3. 4,481 views
A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a
1. 2 answers
2. asked by Dee
3. 3,979 views
marty ate 4/6 of his pizza and luis ate 5/6 of his pizza. marty ate more pizza than luis. how is this possible?
1. 9 answers
2. asked by troy
3. 3,928 views
Which ligand binds the tightest?Ligand A, with a Kd of 10^-9M Ligand B, with a Kd of 10^-3M Ligand C, with a percent occupancy
1. 3 answers
2. asked by Patrick
3. 3,828 views
A sample of naphthalene, which should be pure white, was found to have a grayish color after the usual purification procedure.
1. 2 answers
2. asked by J
3. 3,572 views
A positively charged glass rod is brought close to a neutral sphere that is supported on a nonconducting plastic stand. Sketch
1. 1 answer
2. asked by julie
3. 3,414 views
Consider the differential equation: dy/dt=y/t^2a) Show that the constant function y1(t)=0 is a solution. b)Show that there are
1. 4 answers
2. asked by Erica
3. 3,274 views
An object made of aluminum has a mass of 8.37g. When it was placed in a graduated cylinder containing 20.0ml of water, the water
1. 2 answers
2. asked by Jeannette
3. 2,919 views
Eight friends share three pizzas. How much pizza will each friend get? Explain your thinking words, numbers and models.
1. 4 answers
2. asked by Kim
3. 2,897 views
The height of a triangle is 8 m more than twice the length of the base. The area of the triangle is 32 m^2. Whats the height of
1. 3 answers
2. asked by LaShawn
3. 2,592 views
Find the area of region bounded by the curves y=sin(pi/2*x)and y=x^2-2x.
1. 1 answer
2. asked by Liz
3. 2,586 views
A 1.800 g sample of octane, C8H18, was burned in a bomb calorimeter whose total heat capacity is 11.66 kJ/°C. The temperature
1. 2 answers
2. asked by evgeny
3. 2,526 views
Iff(x) = 9x2 − x3, find f'(2) and use it to find an equation of the tangent line to the curve y = 9x2 − x3 at the point (2,
1. 1 answer
2. asked by monic
3. 2,354 views
1. Which of the following expressions is written in scientific notation?1. 73.4 x 105 2. 0.09 × 107 3. 80 x 103 4. 4.22 x
1. 1 answer
2. asked by ruby
3. 2,234 views
Use fraction strips to find each sum or difference. Simplify if possible.2 1/3 + 1 2/3 3 5/6 + 4 3/6 4 6/10+ 5 7/10 1 1/6 + 3
1. 4 answers
2. asked by Robert
3. 2,174 views
Find the pH of a solution obtained by mixing 100cm3 of 01MHCl solution with 100cm3 of 0.2M NaOH
1. 1 answer
2. asked by Anonymous
3. 1,975 views
change a mixed number to an improper fraction 8 1/2,
1. 3 answers
2. asked by Jared
3. 1,974 views
Can you please help me with this question?1.) Given: triangle ABC ~ triangle XYZ, m<A= 50 degrees, m<X= (2x +5y) degrees, m>Z=(
1. 3 answers
2. asked by Mona
3. 1,970 views
I am not even I am greater than 200 the sum of my digits is nine i am a multiple of five I am less than 300 I am evenly
1. 2 answers
2. asked by Sania
3. 1,764 views
Find the dimensions of a rectangle of maximum area with sides parallel to the coordinate axes that can be inscribed in the
1. 2 answers
2. asked by Lost One
3. 1,569 views
I need help doing a chapter by chapter analysis of the short story Flags Waving by Carolyn Steele Agosta
1. 3 answers
2. asked by Linda
3. 1,445 views
In a marathon race, Chad is out in front, running due north at a speed of 3.92 m/s. John is 92 m behind him, running due north
1. 1 answer
2. asked by Dee
3. 1,422 views
what are the steps of the scientific method in order?
1. 10 answers
2. asked by shoahnur
3. 1,365 views
A soccer ball is released from the top of a smooth incline. After 3.80 s the ball travels 9.1 m. One second later it has reached
1. 2 answers
2. asked by Thomas
3. 1,360 views
Essay: more than a thousand people are killed in road accidents during december holiday.how can this carnage on our roads be
1. 8 answers
2. asked by Mahlangu beauty
3. 1,338 views
Holly County needs a new county government building that would cost $24 million. The politicians feel that voters will not
1. 1 answer
2. asked by Brooke
3. 1,334 views
Answers:1.)D 4.)C 1. In China’s civil war, the United States backed the Communists, led by Jiang Jieshi. the Communists, led
1. 1 answer
2. asked by Deborah
3. 1,323 views
If a ball rolls down an inclined plane and picks up 4 m/s each second it rolls, its acceleration is
1. 0 answers
2. asked by denise
3. 1,323 views
Can you please tell me the names of the people who can be an inspiration forTime management communication hobbies self
1. 2 answers
2. asked by zoanthus
3. 1,300 views
Six hundred people came to the band concert that was held on the school's athletic field. half of the people sat in the
1. 5 answers
2. asked by Anonymous
3. 1,275 views
If Im naming fractions are these fractions in the right order from least to greatest?1/4 1/3 1/2?
1. 2 answers
2. asked by Jerald
3. 1,273 views
Linear inequality, 2x+6 < 5(x-3)
1. 2 answers
2. asked by Zico johnny
3. 1,272 views
How many milliliters of 0.5M NaOH must be added to 200 mL of 0.1M NaH2PO4 to make abuffer solution with a pH of 6.9?
1. 1 answer
2. asked by Joanna
3. 1,259 views
Express the system as an augmented matrix and solve using Gaussian elimination.x=+2y+z=3 2y+3z =2 -x+2z = 1
1. 2 answers
2. asked by Vee
3. 1,259 views
If the standard deviation of a sample is 4.3 for 28 data values, what would the standard deviation be fore the population from
1. 1 answer
2. asked by Leisa
3. 1,252 views
Show that z/pq = 1/pr + 1/qr, where r = (p + q)/zFinding decmpositions of a fraction into 2 units as indicated on a paprus
1. 3 answers
2. asked by Barb
3. 1,249 views
A particle has a charge of +2.2 μC and moves from point A to point B, a distance of 0.16 m. The particle experiences a constant
1. 1 answer
2. asked by mageda
3. 1,232 views
how do you solve for x3.4e^(2-2n)-9=-4 I don't know what is the step by step process. Help please!
1. 2 answers
2. asked by Jessica
3. 1,230 views
3. An astronaut lands on an alien planet. He places a pendulum (L = 0.200 m) on the surface and sets it in simple harmonic
1. 0 answers
2. asked by Matt Damen
3. 1,210 views
A mountain-climbing expedition establishes two intermediate camps, labeled A and B in the drawing, above the base camp. What is
1. 0 answers
2. asked by B
3. 1,188 views
an idea that is based on many detailed observations_ _ E _ _ _ a part of an organism that can be used for identification _ _ _ _
1. 2 answers
2. asked by Anna W.
3. 1,174 views
convert the improper fraction to a mixed number 11/9.
1. 1 answer
2. asked by Jared
3. 1,171 views
A tomato is thrown upward from a bridge 23 m above the ground at 40 m/sec. find acceleration, velocity, and height of tomato at
1. 1 answer
2. asked by Rachel
3. 1,163 views
a baker made 100 dozen cookies she sold 3/5 of them before noon how many dozen were sold before noon
1. 2 answers
2. asked by tiffany
3. 1,154 views
MIke and Shayne reacted sodium chloride with silver nitrate as indicated in the reaction below:AgNO3(aq) + NaCl(aq) → AgCl (s)
1. 1 answer
2. asked by Thad
3. 1,153 views
If the freezing point of pure toluene is -95.15 oC and its freezing point depression constant is -8.38 oC/molal, what is the
1. 1 answer
2. asked by Jaden
3. 1,151 views
Identify the solution(s) of the system of equations, if any.3x-2y=6 5x=5-25y a) (28/13, 3/13) b) (-3/17, 32/17) c) (32/17,
1. 0 answers
2. asked by monet
3. 1,144 views
If the product of four tenths and six tenths is subtracted from the sum of four tenths and six tenths, what is the difference?
1. 2 answers
2. asked by Michelle
3. 1,135 views
Neckles stamped with an c on an crown on top of the c can some one maybe tel me what is the meaning
1. 1 answer
2. asked by jaco
3. 1,129 views
heading due north at 6.00 m/s relative to the water. The local ocean current is 1.53 m/s in a direction 40° north of east. What
1. 2 answers
2. asked by bobby
3. 1,101 views
Please help me.Find the equation of the line satisfying the indicated properties. Express your answer in slope-intercept form.
1. 2 answers
2. asked by Vee
3. 1,096 views
A light bulb is placed 17.1 cm in front of a concave mirror. When the concave mirror is replaced by a plane mirror in the same
1. 1 answer
2. asked by Anon
3. 1,095 views
in great expectations what is ironic about miss. jones not going to church
1. 1 answer
2. asked by Anonymous
3. 1,077 views
I am desperate for help with this assignment...a short chapter by chapter analysis of the book The Secret Life of Bees by Sue
1. 1 answer
2. asked by Karen
3. 1,075 views
calculate the enthalpy change for: (enthalpy of formation of aqueous sodium hydroxide is -469.60 kJ/mol. enthalpy of formation
1. 1 answer
2. asked by Annie
3. 1,072 views
Two sinusoidal waves with the same amplitude of 9.11 mm and the same wavelength travel together along a string that is stretched
1. 2 answers
2. asked by Anonymous
3. 1,053 views
Calculate the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0655 M 18.4 s after the
1. 3 answers
2. asked by Anonymous
3. 1,038 views
the total mass-energy of one pound of anything is about how many joules
1. 1 answer
2. asked by George
3. 1,024 views
essay on "modernity is a question not of time but of outlook".What do u mean by this"
1. 1 answer
2. asked by zoanthus
3. 1,023 views
Suppose that, in fact, the blood cholesterol level of all men aged 20 to 34 follows the normal distribution with mean of u = 188
1. 1 answer
2. asked by Zachovia
3. 1,023 views
A 6.00 cm tall candle is placed at a distance of 30.0 cm from a double convex lens having a focal length of 15.0 cm. How tall is
1. 0 answers
2. asked by Anonymous
3. 1,019 views
Identify the solution(s) of the system of equations, if any.3x + 2y = 4 5x - 4y = 3 a) (1, 0.5) b) (0, 5.1) c) (5,5.5) d) (5/11,
1. 2 answers
2. asked by Anonymous
3. 1,008 views
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler gets a discount of 25% on the goods from the
1. 0 answers
2. asked by Anonymous
3. 987 views
Which one of the following types of information are people least comfortable revealing to professionals?A. Medical B. Financial
1. 5 answers
2. asked by phia
3. 976 views
what is the volume of a cube that has the following measurements (length 20.0 cm, width 152 mm, height 0.458 m)
1. 1 answer
2. asked by keysha
3. 976 views
Determine how many calories are need to heat 30 grams of water from 10 degrees C to 30 degrees C
1. 2 answers
2. asked by Ali
3. 964 views
How much energy is released when 1 gram of steam condenses to water at 100 degrees Celsius?
1. 0 answers
2. asked by Hannah
3. 963 views
the product of three consecutive integers is 22 less than the cube of the middle integer. Find the integer.
1. 1 answer
2. asked by jamie
3. 961 views
If Chelcy and Allyson reacted 2.55 grams of Mg with excess hydrochloric acid (HCl), how many grams of MgCl2 will they
1. 2 answers
2. asked by star
3. 949 views
tom has a collection of 50 cds and nita has a collection of 38 cds. Each month tom adds two cds and nita adds four how many
1. 3 answers
2. asked by Terri
3. 948 views
How many molecules are there in 24 grams of FeF3 ? Can somebody please show me how i can get to the answer ? Thank you
1. 1 answer
2. asked by Justin
3. 946 views
nerve fiber control over muscle or gland effector activity
1. 3 answers
2. asked by val
3. 946 views
what type of foreign policy did united states adopt after world war 1
1. 1 answer
2. asked by Florence
3. 926 views
Find the domain of the following:f(x)=x+4 so x is the domain so would the answer be -4?
1. 0 answers
2. asked by Anonymous
3. 919 views
An object thrown in the air on a planet in a distant galaxy is at heights(t) = -20t^2 +67t +42 feet at time t seconds after it
1. 1 answer
2. asked by Rachel
3. 910 views
A string is 12in. long which makes a rectangle area of 5sq.inch can you make a shape that has a greater area with the string, if
1. 1 answer
2. asked by Anonymous
3. 910 views
An organic compund has a molar mass of 178.3g/mol and contains 7.29% hydrogen atoms by mass. How many hydrogen atoms are in each
1. 1 answer
2. asked by victoria
3. 907 views
You have 3 equilateral🔻🔻🔻. You must move one to make 5 triangles.
1. 0 answers
2. asked by Anonymous
3. 890 views
Identify the solution(s) of the system of equations, if any.x=1 y=1 I think it is C but not 100% sure.... just seems to easy a)
1. 1 answer
2. asked by Anonymous
3. 888 views
A 6 ft tall person cast a shadow 15 ft long. At the same time a nearby tower casts a shadow 100 ft long. Find the height of the
1. 1 answer
2. asked by april
3. 867 views
CH3CH2CHO + 2Ag(NH3)2OH = CH3CH2COONH4+2Ag+H20+3NH3yield of Ag obtained = 75% calculate minimum mass of propanal that must have
1. 6 answers
2. asked by Jonathan
3. 859 views
the food group pyramid presents daily recommendations for:a.kind and amount of food to eat each day b.minimum amounts of
1. 1 answer
2. asked by ray
3. 858 views
What is a cross between plants that involves one characteristic called
1. 2 answers
2. asked by Candy
3. 855 views
An office supply store sells pens for $3 and notebooks for $5. Before school started, the store sold 12 more pens than notebooks
1. 1 answer
2. asked by Anonymous
3. 845 views
what is the number of grams of steam at 100 degrees C that will condense as 5g of ice at 0 degrees C melts?
1. 0 answers
2. asked by Hannah
3. 845 views
For the fundraiser, will sold 225 candy bars.he earns $1 for each almond candy bar he sells and $0.75, how many of each type of
1. 2 answers
2. asked by Candy
3. 839 views
IF 3a =2b and 4b=9c, find the ratio of a to c in simplest form and show steps.
1. 2 answers
2. asked by Mona
3. 837 views
Papa's Pizza charges $0.05 per square inch of pizza. Pizza is measured by the diameter. How much will pap's Pizza charge for a
1. 2 answers
2. asked by Alexey
3. 833 views
sodium metal dissolves im liquid mercury to form of NA(s) and Hg(l) are 0.97 g/ml and 13.6 g/ml respectively. a sodium amalgoum
1. 1 answer
2. asked by masharat
3. 831 views
The activation energy of a certain reaction is 32.9 kJ/mol At 25 degrees C the rate constant is 0.0160 units s-1 units. At what
1. 1 answer
2. asked by Amy
3. 816 views
how much water can dissolve in 700ml of water at 50 c?
1. 1 answer
2. asked by k
3. 802 views
Power reducing formulas can be used to rewrite 8sin^2 x cos^2 x as 1 - cos4xTrue? Thanks
1. 2 answers
2. asked by mysterychicken
3. 796 views
Two small aluminum spheres, each having mass 2.65×10−2 , are separated by 85.0 .How many electrons would have to be removed
1. 0 answers
2. asked by Julie
3. 785 views
When water freezes, it expands about 8.60%. What would be the pressure increase inside your automobile engine block if the water
1. 1 answer
2. asked by Anonymous
3. 784 views
An open box is made from a square piece of metal by cutting out a 4 inch square from each corner and turning up the sides. Find
1. 1 answer
2. asked by Nikki
3. 782 views
A sample of gas occupies a volume of 63.1 mL. As it expands, it does 130.4 J of work on its surroundings at a constant pressure
1. 1 answer
2. asked by Anonymous
3. 772 views
Suppose a linear system of equations has 2012 equations and 2013 unknowns. Answer thefollowing questions: � Can the system be
1. 0 answers
2. asked by Anonymous
3. 770 views

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