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Questions Asked on January 15, 2013

What is the spring constant of a spring that stretches 2.00 cm when a mass of 0.600 kg is suspended from it?Answer i know the
1. 2 answers
2. asked by v
3. 8,333 views
Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on. Write the numbers for
1. 35 answers
2. asked by Barb
3. 5,878 views
Two shirts cost $12.50. How much will it cost to buy five of the shirts?Select all the pairs of ratios that form a proportion.
1. 16 answers
2. asked by Anonymous
3. 3,831 views
The total resistance of a series circuit is 500 ohm. What percentage of the total voltage appears across a 22 ohm resistor in
1. 4 answers
2. asked by Treavonne
3. 3,639 views
Solve the equation sin2x=2cos2x, for 0 degrees <=x<=180 degrees
1. 2 answers
2. asked by Charles
3. 3,630 views
Use coordinate geometry to prove that the quadrilateral formed by connecting the midpoints of a kite is a rectangle.I have no
1. 2 answers
2. asked by Bob
3. 3,413 views
1. How does displacement change with time for a falling object? How might you describe the mathematical relationship between the
1. 1 answer
2. asked by Isabella
3. 3,300 views
if sinx=3/5,cosy=12/13,where x and y both lie in 2nd quadrant, find the value of sin(x+y),cos(x-y),tan(x+y)?
1. 2 answers
2. asked by jeethu
3. 3,034 views
1. The curve y=10/2x+1 -2 intersects the x-axis at A. The tangent to the curve at A intersects the y-axis at C.(i) Show that the
1. 1 answer
2. asked by Stephen
3. 2,836 views
A line through through the point (3,0) meet the variable line y=tx at right angle at the point P.Find in terms of t, the
1. 3 answers
2. asked by Anonymous
3. 2,761 views
Two people are holding a box. One person exerts a force of 140 pounds at an angle of 65.5 degrees with the horizontal. The other
1. 1 answer
2. asked by Jane Smith
3. 2,632 views
3. The average weekly allowance of students last year at a private high school was Php 800.00 per week, based on an enrollment
1. 1 answer
2. asked by Cho (Please help me)
3. 2,580 views
A sample of steam with a mass of 0.553 g and at a temperature of 100 degrees C condenses into an insulated container holding
1. 1 answer
2. asked by Amy
3. 2,561 views
2. A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance?
1. 1 answer
2. asked by Anonymous
3. 2,515 views
Langston Hughes Questions:1. Why does Edward hand over his belongings? (1 point) A. He is afraid. B. He feels sorry for the men.
1. 3 answers
2. asked by Tina
3. 2,082 views
2. Summer occurs on the hemisphere of Earth that is _____.turned away from the sun tilted toward the sun tilted away from the
1. 5 answers
2. asked by Jman
3. 2,034 views
A heat transfer of 9.5 x 10^5 J is required to convert a block of ice at -15°C to water at 15°C. What is the mass of the block
1. 1 answer
2. asked by JOHN
3. 1,953 views
a 40 kg child slides down a frictionless playground slide from a height of 2.0m.What is her speed at the bottom of the slide?
1. 1 answer
2. asked by Jazzy
3. 1,916 views
the chemical equation of nicotinic acid is C5H4NCOOH + NaOH --> C5H4NCOONa + H2Oi need to calculate the intial molar
1. 8 answers
2. asked by lisa
3. 1,912 views
calculate the wavelength in nm of the spectral line produced when an electron in an hydrogen atom undergoes the transition from
1. 1 answer
2. asked by Jana
3. 1,848 views
Here are the monsoon rains (in millimeters) for the 23 strong El Nino years between 1871 and 2004:628 669 740 651 710 717 698
1. 1 answer
2. asked by Anil
3. 1,748 views
Just having some trouble with this chemistry problem.. Thanks for help!Toxic carbon monoxide (CO) gas is produced when fossil
1. 1 answer
2. asked by Sara
3. 1,706 views
if (l1,m1,n1),(l2,m2,n2),(l3,m3,n3) are the direction cosines of three mutual perpendicular lines,show that the line whose
1. 4 answers
2. asked by manjula
3. 1,697 views
i just don't know where to begin/howa) Write a balanced chemical equation for: potassium carbonate + magnesium chloride b) Write
1. 2 answers
2. asked by thad
3. 1,621 views
the magnitude of the tongue produced by a 3.0n force applied to a door at a perpendicular distance of 0.25 m from the hinge
1. 4 answers
2. asked by john
3. 1,537 views
A small ball is thrown vertically upwards with an initial velocity of 40m/s. Find:(1) its velocity after moving 3 seconds(2) the
1. 1 answer
2. asked by davido
3. 1,530 views
Express each of the following in the form Rsin(x+a), where r>0 and 0< a <2pi(a) 5cosx + 12sinx (b) 12cosx + 5sinx
1. 3 answers
2. asked by Annicka
3. 1,516 views
1.Which of the following accurately describes the relationship between cyanobacteria and halophiles?A.Cyanobacteria are
1. 2 answers
2. asked by Anne
3. 1,508 views
What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2?A. 0.25 N B. 49 N C. 196 N D. 748 N
1. 5 answers
2. asked by Jacob
3. 1,495 views
Brian cut an extra large round pizza into 12 pieces. Seven of the pieces were eaten. What angle measure of pizza is left?
1. 3 answers
2. asked by amomouse
3. 1,389 views
A box of rectangular base and an open top has a surface area 600 cm2.If the height of the box is equal to its width, find the
1. 1 answer
2. asked by ayah
3. 1,365 views
what is the magnification of an object 2cm tall when placed 10cm in front of a plane mirror?
1. 1 answer
2. asked by christiana
3. 1,354 views
The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.270 M NaOH.What
1. 1 answer
2. asked by Paul
3. 1,348 views
Essential Math 7 - Unit Rates and Ratios of Fractions
1. 4 answers
2. asked by tesj
3. 1,313 views
Burj Khalifa is the world tallest building in Dubai at 828 m tall.The CN Tower in Toronto is 553 m tall. Sam wants to compare
1. 1 answer
2. asked by matthew
3. 1,298 views
A teacher brings 3 gallons of juice on a field trip. There are 36 students on the trip.a. How many fluid ounces of juice does
1. 2 answers
2. asked by Bell
3. 1,273 views
The driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and skid
1. 2 answers
2. asked by zack
3. 1,263 views
In these complex exponential problems, solve for x:1)e^(i*pi) + 2e^(i*pi/4)=? 2)3+3=3i*sqrt(3)=xe^(i*pi/3) MY attempt: I'm not
1. 1 answer
2. asked by Lisa
3. 1,260 views
What issue needed to be settled before the smaller states agreed to the articles of confederation?.A:how to pay taxes B:ho to
1. 6 answers
2. asked by jj
3. 1,235 views
The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.270 M NaOH.What
1. 3 answers
2. asked by Paul
3. 1,215 views
Julia and Bianca both leave the college at the same time, but in opposite directions. If Bianca travels 9 mph faster than Julia
1. 1 answer
2. asked by mathew
3. 1,214 views
find two fractions with a sum that is greater than 3/4 and less than 15/16. Write your fractions in simplest form and find the
1. 1 answer
2. asked by nainai
3. 1,212 views
I have these math problems form 0-100. I have to use 4 fours to make an answer for that number. For Example:1 : 4/4+4-4 2:
1. 0 answers
2. asked by Celest
3. 1,169 views
Assume each side of the hexagon is worth 10 units. Calculate the apothem, using the fact that it is part of a special triangle
1. 2 answers
2. asked by Brie
3. 1,168 views
Lin-Yee is helping to set up a health clinic in Inuvik by collecting and shipping medical supplies from Calgary. She has found
1. 1 answer
2. asked by alan
3. 1,151 views
log base b 64 - log base b 16 = log base 4 16solve for the variable.. i got to the part as far as: (log 4/log b) = 2 now i m
1. 3 answers
2. asked by Anonymous
3. 1,112 views
Let AB be the diameter of a circle, and let point P be a point on AB. Let CD be a chord parallel to AB. Prove that PA^2 + PB^2 =
1. 0 answers
2. asked by Knights
3. 1,109 views
1. �ÚQTR and ______ are complementary.�ÚQTS �ÚRTS �ÚPTN �ÚQT 2. �ÚQTN and _____ are supplementary. �ÚQTS �ÚQTP
1. 6 answers
2. asked by Jman
3. 1,103 views
7. two paths diverge at a 48 degree angle. two mountain bike riders take separate routes at 8km/hr and 12 km /hr.how far apart
1. 0 answers
2. asked by kelsey
3. 1,058 views
for each of the following, give an answer with the correct number of significant figures:A. 400 times 185 b. 2.40 divided by 4
1. 2 answers
2. asked by tara
3. 1,053 views
A bat emits a sound whose frequency is 83.2 kHz. The speed of sound in air at 20.0 oC is 343 m/s. However, the air temperature
1. 2 answers
2. asked by Orla
3. 1,053 views
Last one for today! Again would appreciate a breakdown on how to get to a resolution. It is multiple choice.1. Simplify the
1. 1 answer
2. asked by Krissy
3. 1,042 views
In circle O, the midpoint of GH is point O. AB = 4x - 2 and CD = 2x + 10. Find the value of x.
1. 1 answer
2. asked by LA
3. 1,026 views
• Linear RegressionIn the babies.dta full dataset, generate a covariate called painind defined as 1 if the infant experienced
1. 2 answers
2. asked by jhikjhak
3. 1,026 views
find two fractions with a sum that is greater than 1.6 but less than 1.9. write your fractions in simplest form and compute
1. 2 answers
2. asked by nita
3. 1,017 views
A gas is confined in a 0.47-m-diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together
1. 0 answers
2. asked by Thao
3. 1,005 views
leon weighed a bag of pears. then he added 4 pounds of pears to the bag. after he took out of 5 pounds of pears, the bag weighed
1. 1 answer
2. asked by mythreyee
3. 990 views
An aircraft maintains a speed of 500 miles per hour in a southwestern direction. The velocity of the jet stream is constant 50
1. 1 answer
2. asked by Deb
3. 989 views
As fair as morn, as fresh as May,a pretty grace in saying nay, Smil'st thou sweetheart? then sing and say, Ta na na no, But O!
1. 0 answers
2. asked by Riana
3. 972 views
a horizontal scaffold, of length 2.00 m and uniform mass 50.0 kg, is suspended from a building by two cables. The scaffold has
1. 0 answers
2. asked by zack
3. 971 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 1 answer
2. asked by jessie
3. 970 views
I have a few more questions that I'm not understanding. Its multiple choice however I would appreciate a breakdown on how to
1. 1 answer
2. asked by Krissy
3. 969 views
Who presented this case to the NAACP?I've googled this and can't even find it.
1. 3 answers
2. asked by Allyson
3. 966 views
The intermediate answers from some calculations based on whole number scores are X=4.3467892 and Y=3.3333. We now want to find
1. 0 answers
2. asked by Sasha
3. 938 views
Will you please check my answers?1. Mary Stevens earns $6 an hour at her job and is entitled to time-and-a-half for overtime,
1. 3 answers
2. asked by Anonymous
3. 931 views
solve by using subsitution:4x+y=2 3y+2x=-1
1. 0 answers
2. asked by Taylor
3. 927 views
RANK THESE COMPOUNDS BY THE LENGTH OF THE CARBON-CARBON BOND
1. 0 answers
2. asked by KEITH
3. 926 views
Write the balanced equation of the reaction described below. Include the states (s, l, aq, g) for the reactants and products.Whe
1. 4 answers
2. asked by thad
3. 910 views
The world's tallest building is the Burj Khalifa in Dubai at 828 m tall.The CN Tower in Toronto is 553 m tall. Ryan wants to
1. 1 answer
2. asked by jenny
3. 905 views
Chemistry!So a metal is found to absorb 1000 calories as it is heated from 40.0C to 60.0C. How much heat would the same sample
1. 3 answers
2. asked by Ari
3. 901 views
when two perpendicular lines intersect, do they form four congruent angles?
1. 1 answer
2. asked by jessie
3. 899 views
Estimate the product of 2/3 and 31. Describe your method.Please help me.
1. 1 answer
2. asked by Anonymous
3. 896 views
What is the smallest of 3 consecutive positive integers if the product of the smaller two integers is 5 less than 5 times the
1. 1 answer
2. asked by Jennifer
3. 885 views
Solve the equation. Check your solution. 164=x-59
1. 2 answers
2. asked by jenny
3. 884 views
1. Use the commutative property to show both arrays you can represent using the factors 3 and 5.3x5=5x3
1. 1 answer
2. asked by Hayden
3. 860 views
An aqueous solution containing 34.6 g of an unknown molecular nonelectrolyte compound in 142.0 g of water was found to have a
1. 0 answers
2. asked by Amy
3. 854 views
A sealed flask contains 0.60 g of water at 28 degrees celcius. The vapor pressure of water at this temperature is 28.36 mmHg.Wha
1. 1 answer
2. asked by Amy
3. 854 views
Suppose that you are 25 years old and you have two options to save money for retirement. Plan A allows you to save $3000 per
1. 0 answers
2. asked by Jessie
3. 843 views
write an advertisement that you could use to sell copies of Mendeleev's periodic table to chemists in 1869. Be sure to emphasize
1. 7 answers
2. asked by ali
3. 841 views
solve by using substitution:x=y+7 y-8=2x
1. 1 answer
2. asked by Taylor
3. 823 views
rocio finished 21 pages of a book in 3 days. monday she finished half of what she did on tuesday and wednesday she finished
1. 1 answer
2. asked by theresa
3. 820 views
Select the most appropriate study design for each of the following questions. (Note: All study design options may not be used
1. 1 answer
2. asked by jhikjhak
3. 818 views
solve sin theta = 1/2,90 degrees less than theta less than 180 degrees
1. 1 answer
2. asked by Rosagne
3. 807 views
I need some help with a few problems. They are multiple choice but need a breakdown on how I can work the problems. Thanks for
1. 2 answers
2. asked by Kristen
3. 781 views
solve using substitution:4x+9y=24 y=1/3x+2
1. 1 answer
2. asked by Taylor
3. 779 views
show that the locus of a point whose distances from two given planes are in a constant ratio, is a plane.
1. 2 answers
2. asked by manjula
3. 760 views
when two perpendicular lines intersect, do they form four congruent angles?
1. 1 answer
2. asked by jessie
3. 746 views
6(b-4)=
1. 4 answers
2. asked by noahc
3. 735 views
A man drove 48 more miles an hour than the number of hours he drove. if he drove 208 miles in all, how many hours did he drive?
1. 1 answer
2. asked by zamarra
3. 727 views
On a curved roadway of radius 100m, the suggested speed is 35mph(approximately 16m/s). What must the coefficient of friction be
1. 2 answers
2. asked by Bryan
3. 717 views
The length of the rectangle is 4 more than twice its width and its perimeter is 70m. What are the dimensions of the rectangle?
1. 3 answers
2. asked by Anonymous
3. 716 views
a wooden board is 3 yards 1 foot long . which show an equivalent length
1. 3 answers
2. asked by tishana
3. 707 views
What is the smallest of 3 consecutive positive integers if the product of the smaller two integers is 5 less than 5 times the
1. 0 answers
2. asked by Jennifer
3. 700 views
A 60g piece of ice at an intial temperature that is unknown is placed into a glass of 250g of water sitting at room temperature
1. 0 answers
2. asked by Jazzy
3. 699 views
Roses were planted 100 cm apart around a rectangular garden. There were no roses at the corners. They started 1 m from each
1. 1 answer
2. asked by sara
3. 699 views
Using Werner Hesienbergs uncertainty principledelta x >h/ (4pie*m*delta v) when mass of electron is 9.11x10^-31kg what is the
1. 0 answers
2. asked by Brooke
3. 696 views
Noah and Brianna want to calculate the distance between their houses which are opposite sides of a water park. they mark a
1. 0 answers
2. asked by kelsey
3. 682 views
Prospective Cohort StudyThe following tables show the crude and sex-specific results from a Prospective Cohort Study that
1. 5 answers
2. asked by netspirit
3. 669 views
I2 + 5 Cl2 + 6 H2O 2 HIO3 + 10 HClWhat is the reducing agent? In your answer give the element symbol and oxidation state.
1. 1 answer
2. asked by simon
3. 662 views
I posed these one's before but added parenthesis which I think made it confusing as the actually questions do not have them. So,
1. 1 answer
2. asked by Kristen
3. 652 views

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