
physics
Two friends, Al and Jo, have a combined mass of 171 kg. At an ice skating rink they stand close together on skates, at rest and facing each other, with a compressed spring between them. The spring is kept from pushing them apart, because they are holding
asked by Jen on January 25, 2012 
Math
A survey of the 4707 vehicles on the campus of State University yielded the following circle graph. A pie graph is divded like this: 10% motorcycles; covertibles is 15%; 7% vans; 6% sedans; 26% pickups; 36% hatchbacks. Find the number of convertibles,
asked by bwb on April 14, 2010 
Physics
When dots are placed on a page from a laser printer, they must be close enough so that you do not see the individual dots of ink. To do this, the separation of the dots must be less than Raleigh’s criterion. Take the pupil of the eye to be 2.9 mm and the
asked by Megan on February 19, 2017 
Engllish
Here it is. I still haven't come up with a wow ending sentence. Do I need to change my thesis statement in the 1st paragraph? I did change it in the last. I awake very groggy, to find myself on this very remote island with not a person in sight. Attached
asked by lizzie on August 8, 2011 
English
I am really trying to understand the novel Lord of the Flies. My teacher asked us to find the theme. I'm not sure what it is. Also, I am college student and one of my high school friends told me about this site. Can you still help me? Thanks! Please tell
asked by SoonerGal on October 23, 2006 
PLZ HELP Math!
1. Estimate the measure of the angle. Graphic 90° 85° 102° 78° 2. Which figure is NOT a polygon? Graphic Graphic Graphic Graphic 3. Which pair of angles are vertical? Graphic ∠b and ∠c ∠b and ∠e ∠b and ∠d ∠b and ∠f 4. Which statement is
asked by name:unknown on February 14, 2019 
Math i dont understand
1. The table shows the results of spinning a fourcolored spinner 50 times. Find the experimental probability and express it as a decimal. P(not red) = ? (1 point) a 0.6 b 0.4 c 0.2 d 0.3 2. You roll a number cube 20 times. The number 4 is rolled 8 times.
asked by Alexia Marsel on May 19, 2016 
physics
a 43.7 kg student runs down the sidewalk and jumps with a horizontal speed of 4.48 m/s onto a stationary skateboard. the student and the skateboard move down the sidewalk with a speed of 4.25m/s. find the mass of the skateboard in units of kg. how fast
asked by annonymous on January 22, 2012 
physics
a 43.7 kg student runs down the sidewalk and jumps with a horizontal speed of 4.48 m/s onto a stationary skateboard. the student and the skateboard move down the sidewalk with a speed of 4.25m/s. find the mass of the skateboard in units of kg. how fast
asked by annonymous on January 22, 2012 
physics
a 43.7 kg student runs down the sidewalk and jumps with a horizontal speed of 4.48 m/s onto a stationary skateboard. the student and the skateboard move down the sidewalk with a speed of 4.25m/s. find the mass of the skateboard in units of kg. how fast
asked by annonymous on January 22, 2012 
statistics
According to a study of 90 truckers, a trucker drives, on average, 540 miles per day. If the standard deviation of the miles driven per day for the population of truckers is 40, find the 99% confidence interval of the mean number of miles driven per day by
asked by Anonymous on April 13, 2010 
maths
a person observed from the top of a light house which is 80 m above the sea level that angle of depression of two ships are 45 degree and 60 degree. The two ships are on same side of the light house.They are in the line with the foot of the light
asked by Anonymous on February 14, 2013 
Physics
A standard man uses crutches. The crutches each make an angle of 25 degrees with the vertical. Half the standard man's weight is supported by the crutches; Assuming the standard man is motionless, find the magnitude of the force supported by each crutch.
asked by Irma on December 14, 2015 
5th grade
For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?
asked by Danielle on December 1, 2010 
math
The ratio of A's stickers to B's stickers was 3:4. After A bought another 18 stickers and B lost 10 stickers, the ratio became 3:2. Find the number of stickers both of them had at first.
asked by Al on April 24, 2012 
MATH
In a triangle ABC, angle B is three times angle A and angle C is 1 less than 6 times angle A. Find the size of angle A, B, C
asked by Amy on October 27, 2010 
Algebra
Find the exact solution(s) of the system: x^2/4y^2=1 and x=y^2+1 A)(4,sqrt3),(4,sqrt3),(4,sqrt3),(4,sqrt3) B)(4,sqrt3),(4,sqrt3) C)(2,1),(2,1),(4,sqrt3),(4,sqrt3) D)(4,sqrt3),(4,sqrt3) I don't know
asked by Jon on February 21, 2008 
8th Grade Geometry
given that triangle ABC~ triangle XYZ, angle a=50, angle x=(2x+5y), angle z= (5x+y), and that angle b =(102x), find angle z.
asked by Monica on January 11, 2015 
Algebra 2
If log10^9=0.95 and log10^2=0.30, find the following: 1. log10^9/2 2. log10^3 3. log10^36 4. log10^20/9 5. log10^900 6. log10^1/9 7. log10^1/2000 8. log10^162 I need to see all of the steps. Thanks
asked by Brandon on May 12, 2011 
chemistry
Find the mass in grams of 1.01 mol TiO2 A. 0.806 g TiO2 B. 80.67 g TiO2 C. 8.06 g TiO2 D. 806.7 g TiO2 B
asked by Cathy on November 11, 2012 
MATH QUIZ
Round each number to the underlined place value. 1.) 15.6571 >5 is underlined 2.) 0.8914 >1 is underlined 3.) 7,022.56 >3 is underlined 4.) 345.678 >6 is underlined Estimate. 5.) 3.7 · 8.06 about 32 about 27 about 12 about 24 6.) 17.25 + 6.66
asked by Brooke on October 5, 2011 
Calculus Finals Review sheet!! Explanation needed
Here is a graph of the derivative y' of a continuous, differentiable function. For approximately what values of x between Ã¢Ë†â€™5 and 5 does the original function y have inflection points? Find limit as x approaches 3.5 [[x2]]/x (Remember that
asked by Prince@18 on December 17, 2016 
Chemistry
A laboratory technician wants to determine the aspirin content of a headache pill by acid–base titration. Aspirin has a Ka of 3.0 × 104. The pill is dissolved in water to give a solution that is about 102 M and is then titrated with KOH solution. Find
asked by J on November 17, 2016 
Grade 11th Physics
A bus starts from rest and accelerates uniformly for 20 seconds to a speed of 18 km/h. It then moves with a uniform velocity and it is finally brought to rest in 100 meteres with a constant retardation. If the total distance travelled is 0.5km. Find the
asked by Akash on July 9, 2010 
physics
A digital audio compact disc carries data along a continuous spiral track from the inner circumference of the disc to the outside edge. Each bit occupies 0.60 mm of the track. A CD player turns the disc to carry the track counterclockwise above a lens at
asked by Anonymous on November 4, 2012 
Stats
I have a test on this tomorrow and I swear he didn't teach this and the book's not helping either, so maybe u can: A hwy engineer knows that his crew can lay 5 miles of hwy on a clear day, 2 miles on a rainy day, and only 1 mile on a snowy day. Suppose
asked by Jessica on November 14, 2012 
Mathacceleration
An object moves across a straight line so that after t seconds, is distance from its starting point is: D(t)=t^3  12t^2 + 100t + 12 meters. Find the acceleration of the object after 3 seconds. I believe acceleration is calculated by taking the second
asked by becky on October 3, 2006 
History
8. How did the Great Depression affect Europe? a. American workers emigrated to Europe in large numbers to find jobs. b. Overproduction made American goods too expensive for Europeans to buy. c. U.S. banks stopped investments in Europe and demanded
asked by Anon on May 29, 2019 
Physics
A circular disk of mass 0.4 kg and radius 36 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of mass 1.7 kg and the same radius, rotating freely at 3.4 a) Find the new angular velocity of the combination; b) The change in the
asked by Ana on December 7, 2016 
physics
A dock worker loading crates on a ship finds that a 25 kg crate, initially at rest on a hori zontal surface, requires a 90 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51 N is required to keep it
asked by Sara on March 14, 2011 
Chemistry
The problem asked to find the amount (in moles) of reactant left. .223moles FeS and .652moles of HCl FeS+2HCl> FeCl2+H2S .223molFeS(1moleFeCl2/1moleFeS)=.223moleFeCl2 .652molHCl(1moleFeCl2/2molHCl)=.326moleFeCl2 .223/.326x100=68.4% used HCL
asked by G.C. on February 25, 2014 
chemistry
Hi, I really need help with my lab report because Im completely stuck. Its about the Ideal Gas behaviour. I am given the mass of Nano2 (0.5044g) the temperature of n2 gas (21.2 C) the temperature of water (21.9 C) the volume of n2 (186.1 ml) and the
asked by Tamara on October 18, 2011 
public speaking
I am trying to pick a motivational speech topic where I have to convince someone to do something (i.e stop shopping at a store, join a particular organization, etc). However, we have to have 5 credible sources, one of which has to be a peerreviewed
asked by dylan on October 18, 2015 
Chemistry
The problem asked to find the amount (in moles) of reactant left. .223moles FeS and .652moles of HCl FeS+2HCl> FeCl2+H2S .223molFeS(1moleFeCl2/1moleFeS)=.223moleFeCl2 .652molHCl(1moleFeCl2/2molHCl)=.326moleFeCl2 .223/.326x100=68.4% used HCL
asked by G.C. on February 25, 2014 
science
A thing can be made from one or more materials and use of a material depends upon its properties. Now, find out about some imp. Properties of the materials like hardness, softness, heavy and light etc and how do these properties help you in grouping things
asked by arshya on June 24, 2007 
Chemistry
The problem asked to find the amount (in moles) of reactant left. .223moles FeS and .652moles of HCl FeS+2HCl> FeCl2+H2S .223molFeS(1moleFeCl2/1moleFeS)=.223moleFeCl2 .652molHCl(1moleFeCl2/2molHCl)=.326moleFeCl2 .223/.326x100=68.4% used HCL
asked by G.C. on February 25, 2014 
Physics
The problem goes like this... You are pushing a shopping cart at a constant speed. The handle makes an angle of 30.0 degrees with the horizontal and the friction in the cart has a coefficient of 0.400 to account for all the axles, etc. The mass of the cart
asked by Fatima on December 22, 2010 
stats
A clothing company employs 36 workers on first shift and 19 workers on second shift. Five workers are chosen at random to be interviewed about the work environment. Find the probability of choose: a) All firstshift workers b) all secondshift workers c)
asked by Kristi on February 10, 2013 
SUVs and Cars (Math)
In a parking lot, the # of ordinary cars is larger than the # of sports utility vehicles. by 94.7%. The difference btwn the # of cars and the # of SUV's is 18. Find the # of SUV's. ~My thoughts and work: C= Cars # S= SUV # CS= 18 (C/S)*100= 94.7% Can I
asked by ~christina~ on September 15, 2007 
Physics
A proton, moving with a velocity of vinitial i, collides elastically with another proton that is initially at rest. Assuming that the 2 protons have equal speeds after the collision, find (a) the speed of each proton after the collision in terms of
asked by Brian on October 13, 2009 
word problems in algebra
The cost of producing a number of items x is given by C = mx + b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a) If the fixed cost is $40 and the variable cost is $10, write the cost equation. (b) Graph
asked by Amanda on April 5, 2007 
physical science
gimme a side of what physical science is. I know there's no shortcuts but it means alot of ev'rything I gotta know. Sho' me. I have little understanding of what you wrote. When one tries to communicate in nonstandard English, the results are
asked by Henry on September 3, 2005 
Intermediate Algebra
a male born in 1975 does not want his future wife to outlive him. What should be the year of birth for his wife so that they both can be expected to die in the same year? Find M(y)+F(y) to get the formula for life expectancy of a person born in year y 2 M
asked by Ganelle on May 3, 2010 
Pre Calc
Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet? a) Find parametric equations that model the motion of the ball as a function of time. b) How long is the ball in the air? c) When is the ball at its
asked by Rebekah on May 7, 2013 
Pre calc
Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet? a) Find parametric equations that model the motion of the ball as a function of time. b) How long is the ball in the air? c) When is the ball at its
asked by Rebekah on May 6, 2013 
Science
A ball is dropped from height of 8m above the ground. After striking the ground the ball rebound instantaneously with the same speed it struck the ground. The instant at which ball strike ground, another ball is drop from the same height. Find the height
asked by Chaitanya on January 18, 2018 
Math Help
Mieko, who is 1.53 m tall, wishes to find the height of a tree. She walks 21.66 m from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. She is
asked by Jill on September 15, 2010 
PLEASE HELP! EARTH SCIENCE
What is the relative humidity of sample 2: Sample: 2 T(degrees)C: 32(degrees) Mass of Water Vapor: 14 g Mass of Water vapor at Saturation: 34 g please help me...i don't understand how to find this
asked by NikkiOle on February 27, 2007 
physics
when a battery is connected to a 100Ω resistor, the current is 4.00 A. When the same battery is connected to a 449Ω resistor, the current is 1.09 A. Find the emf supplied by the battery and the internal resistance of the battery.
asked by Chuck on February 19, 2015 
math
Given that the number 1372x413 is divisible by 11, where x is a digit, then the value of x is To find if number is divisible by 11, difference of sum of digits at even places and sum of digits at odd places should be either 0 or 11. is this correct?????
asked by poorvi on April 1, 2017 
physics
A. There are 28 g of salt dissolved in 400 ml of water. Consider the quantity 0.07 = 28/400. 1. Give the name of the quantity if there is one. 2. What is the interpretation of . 07 g in this context? 3. Use the interpretation to find the amount of salt
asked by andrea on January 24, 2011 
history
what are three important US domestic politics(domestic events/issues) from the 1990s? I have been searching for the answer, but I keep on only finding foreign politics and not domestic ones and the domestic issues I do find are not from 1990s...someone
asked by zak on May 30, 2008 
Algebra
You and a friend eat tacos. You order 2 tacos and 5 burritos which equals $19. Your friend orders 1 taco and 4 burritos which equals $14. Find the cost of a taco and a burrito. Please help
asked by Bill on September 19, 2016 
algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
asked by Brianna on November 27, 2014 
math
Triangle UVWis a right triangle. If UV=51 centimetersand VW=140 centimeters. find UW. I subtracted 51 from 140 and got an answer of 191. then i subtracted 191 from 360 to get an answer of 179. is this right?
asked by Sydney on May 10, 2011 
Calculus
A circle has a radius lf 10/(pi1) which is the same value as the side of a square. Both the radius of the circle and the side of the square are gowing at 1 in/sec. Find the difference between the rates of change of their area in in/sec.
asked by Sarah on April 25, 2015 
math
(x^3+7x+12)/(x4) find: x intercepts vertical asymptotes horizontal/slant asymptotes derivative second derivative increasing interval decreasing interval concave up interval concave down interval
asked by Melanie on January 22, 2012 
math
for the following equations, write a word problem draw a picture, and find the solution to the equation. 5/12  1/3=? I know the answer is 1/12 but am stumped on how to write the word problem and draw a picture
asked by m on October 27, 2010 
math
f(x)=x/(x^2+x2) find: x intercepts vertical asymptotes horizontal/slant asymptotes derivative second derivative increasing interval decreasing interval concave up interval concave down interval
asked by Melanie on January 22, 2012 
English
I wanted to clean the desk, because there was no room for anything on it. I, also, wanted to clean it because when papers where put down on the desk you could not find them later that day. Are these two sentences correct? Do you also put commas saying I,
asked by Pete on March 3, 2011 
math
f(x)=x^3+6x^2+9x find: x intercepts vertical asymptotes horizontal/slant asymptotes derivative second derivative increasing interval decreasing interval concave up interval concave down interval
asked by Melanie on January 22, 2012 
calculus
find the definite integral that is equivalent to lim n>infinity of sum over i=(1,n) n/(n^2+i^2) since definite integral of f(x) dx over (a,b) = lim n>infinity sum over i=(1,n) f(a + (ba)i/n) * (ba)/n then: f(a + (ba)i/n) * (ba)/n = n/(n^2+i^2)
asked by Parker on August 18, 2012 
Density
A new penny has a mass of 2.54 g and a volume of 0.354 cm3. Is the penny made of pure copper? what is its density? thanks:) Density is mass/volume but I don't know how to find it with g and cm3
asked by Maria on August 26, 2010 
Precalculus
The area of a triangle wall on a barn is 160 square feet. Its length is 4 feet longer than twice the width. Find the length and width of the wall of the barn
asked by Tamika on February 3, 2015 
ALgebra...plz help
If the tens digit of a twodigit number is subtracted from the units digit, the difference is 8. The number with the digits reversed is 10 more than nine times the units digit of the original number. Find the number.
asked by Anonymous on February 1, 2011 
math
an urn contains 2 white and 2 black balls. a ball is taken at random. if the ball is white then it is not replaced otherwise it is replaced along with another ball of the same colour. find the probability that the third ball drawn is black.
asked by maths on April 29, 2016 
algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
asked by Brianna on November 26, 2014 
Digit Problems
If the tens digit of a twodigit number is subtracted from the units digit, the difference is 8. The number with the digits reversed is 10 more than nine times the units digit of the original number. Find the number.
asked by samm on February 1, 2011 
algebra 1
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 +
asked by Macy on May 4, 2018 
math
Katie picked 7 times as many strawberries as Garrett. Garrett picked 6 quarts of strawberries. How many quarts did Katie pick? Which two multiplication facts can you use to help find the solution ?
asked by grace on January 5, 2015 
math
One month, ruby worked 6 hours more than Isac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 126 hours. Find the number of hours each person worked
asked by maleia on September 27, 2015 
math
Mr chen deposits a certain amount in a bank if the interest of the bank decreased from 3.75% to 3.5% per annum mr chen's interest decrease by 50$ in a year find the sum of amount he deposits
asked by Anonymous on May 22, 2014 
Integral Help
I need to find the integral of (sin x)/ cos^3 x I let u= cos x, then got du= sin x (Is this right correct?) I then rewrote the integral as the integral of du/ u^3 and then rewrote that as the integral of  du(u^3). For this part, I wasn't sure how to
asked by Anonymous on November 14, 2013 
Geo
If living in Canada you are called Canadians. If you are lving in the province of New Brunswick, then what are you called. Canadians.... New Brunswick is a province of Canada. But do they have a specific name like New Brunswickins. I can find nothing to
asked by London on January 17, 2007 
math
a rectangular parking lot has a length that is 10 yards greater than the width. the area of the parking lot is 200 square yards.find the length and the width
asked by greg on February 5, 2011 
Geometry
The measure of an exterior angle of a triangle is 120. the interior angles that are not adjacent to this exterior angle are congruent. find the measures of the interior angles of the triangle
asked by Anonymous on March 18, 2010 
Math
I bought three times as many erasers as pens and spent $155 in total. I spent $65 more on the pens than the erasers. Given that 's pen cost $1.90 more than an eraser, find the cost of a pen.
asked by Anonymous on January 4, 2017 
Algebra
Leo's garden, which is 6m wide, has the same area as Jen's garden, whichis 8m wide. Find the length of the two rectangular gardens if Leo's garden is 3m longer than Jen's garden.
asked by Stephanie on September 24, 2013 
calculus
The volume of grains in a silo at a particular time (measured in hours) is given by V (t) = 4t(3t)m^3 Find the rate of change of the volume of grains in the silo from first principles (using the definition of the rate of change)
asked by Dave on April 30, 2012 
math
Lenora correctly factored the expression 2x2−11x+15 as (x−3)(2x−5). She then stated that the solutions to the equation 0=2x2−11x+15 are x=3 and x=5. Did Lenora find the correct solutions to the equation?
asked by logan on January 23, 2019 
math
The length, l, of a rectangle is 2 feet less than three times the width, w, of the rectangle. The area of the rectangle is 481 square feet. Find the length and width of the rectangle. how do i work this problem out?
asked by Anonymous on October 16, 2009 
English
1. Did you find the bag? Yes, it was on your bed. 2. Where is that pen?  It is under the bed. 3. Did you see my pencil case?  Yes, it was next to the bookcase.  It refers to 'the bag,' 'that pen,' and 'my pencil
asked by rfvv on October 29, 2017 
algebra
The function W(d)=0.112d approximates the amount, in centimeters, of water that results from d cm of snow melting. Find the amount of water that results from snow melting from depths of 15 cm, 44 cm and 68 cm
asked by Faye on August 22, 2010 
Algebra 1
Roman mixes 12 liters of 8% acid solution with a 20% acid solution, which results in a 16% acid solution. Find the number of liters of 20% acid solution in the new mixture. show your work
asked by Sara on July 1, 2015 
campbell drive
Tickets cost $8.00 each for adults and $2.50 each for kids, and the group paid $46.50 in total. There were 6 fewer adults than kids in the group. Find the number of adults and kids on the trip. # of adults = # of kids =
asked by mike on February 27, 2015 
Math
If a spherical tanl 4m in diameter can be fillef with a liquid for $900, find the cost to fill a tank 12m in diameter. The cost to fill the 12m tank is $__.
asked by Pam on January 22, 2015 
Math
Triangle ABC has the side of lengths of 6,8,9. HGI is similar to ABC which has the side length of 12, 8, and its missing one length. What is the missing number. Can someone explain how to find that number.
asked by Katherine on October 25, 2017 
Math
Linda has a total of 225 on 3 tests. The sum of the scores on the first and second tests exceeds her third score by 61. Her first test exceeds her second by 6 points. Find Linda's 3 test scores.
asked by Anonymous on September 22, 2013 
math help plsss plsss
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2
asked by Oscar on May 25, 2016 
Microeconomics
You have this chart of combinations of clothing and food. You have to find the marginal opportunity cost and the total cost of producing the second unit of clothing. And then same for the third unit of clothing. Clothing: 4 3 2 1 0 Food: o 7 13 18 22
asked by Tasha on August 28, 2008 
social
what episode is kourtney and kims fight in miami? I know it was on kourtney and kim take miami but I don't know which episode I need this for a social analysis I have tried looking for it in episode summaries but I cant seem to find it. I know there was a
asked by anonymous on January 27, 2014 
math help how do i do this
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2
asked by Oscar on March 1, 2016 
linear algebra
If →u and →v are the vectors below, find the vector →w whose tail is at the point halfway from the tip of →v to the tip of →u and whose head is at the point halfway from the tip of →u to the tip of →u−→v. Assume all vectors are in
asked by sal on September 21, 2018 
Math
Four of the angles of a pentagon measure 85 degrees, 110 degrees, 135 degrees, and 95 degrees. Find the measure of the missing angle. A. 115 degrees B. 95 degrees C. 135 degrees D. 85 degrees Is the answer D?
asked by Callie on January 21, 2015 
math
5. Dan’s house is north 3 miles and west 3 miles from Amy’s house. Find the distance between Amy’s house (6, –3) and Dan’s house (3, 0). (Estimate to two decimal places.)
asked by noy on January 23, 2013 
Education
After making a child abuse report, how are teachers protected by law? I've been looking at the child abuse sourcebook for Florida, but I can't find anything that explains how teachers are protected by law, please help.
asked by Lor on December 4, 2013 
algebra
one angle of a parrallelogram is 23 degrees less than six times the measure of the angle next to it.the sum of the measures of the angles is 180 degrees. find the measure of the adjacent angles of the parrallelogram.
asked by angie on August 27, 2012 
percentage
Karen took 1h 45m to drive from town a to town b.she took another 25m to drive town b to town c.after that,she drove back to town a.the journey from town a to town c and then back to town a took 3h 35m. find the percentage of the time she spent driving
asked by Da S on February 12, 2012 
MATH :)
3. In Biology, it is found that the bacteria in a certain culture double every halfhour. If the initial number of bacteria in culture is 1000, A. Find the defining equation for the number N of bacteria in culture after T hours, assuming that no bacteria
asked by NEED ANSWER URGENT. ANON. on May 4, 2011 
Trigonometry
A wheel is rotating at 200 revolutions per minute .find the angular speed in radians per second. 200 rpm =200*2pi radians/1 minute (1 rotation = 2pi radians) = 400pi radians/60 seconds =20/3 radians/second You can follow the same procedure for the other
asked by James on July 3, 2007
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