
English stories
Hii so in order to write an essay I needed to find three common themes in both stories of: to kill a mocking bird by harper lee and boys and girls by alice munro. What I found was: search for ones identity, coming of age but I need one more so I thought of
asked by katherineeee on November 25, 2013 
Calc
A cardboard box manufacturer makes open boxes from rectangular pieces of cardboard of size 30cm by 40cm by cutting squares from the four corners and turning up the sides. A) find a mathematical model expressing the volume of the box as a function of the
asked by steph on September 25, 2013 
math
1. Finding the Counterfeit Coin. You have 5 coins. You know that one of them is counterfeit and weighs less than the others. Suppose also that you have a balance scale. Is there a strategy for finding the counterfeit coin using the balance scale only
asked by al on September 30, 2014 
AP Calculus
Oil leaks out from a damaged oil tanker and forms a circle around the tanker. If the radius of the circle of oil is increasing at 25m/min, find the rate of change of the area when the radius is 20km
asked by Jessica on January 15, 2013 
Algebra
Find the real zeroes of the polynomial: f(x)=2x(x+5)^28x I know you can pull the factors from the leading coefficient and the constant: constant = p= 5 factors 1, 5 leading coefficient= q= 2 factors 1, 2 so would my rational zeros be: +/{1, 1/2, 5, 5/2}
asked by Markus Dotrice on July 1, 2018 
Math
Two trains start heading toward each other from two cities, the distance between which is 720 km, and meet right in the middle. The second train left 1 hour after the first train, but traveled at a speed 4 km/hour faster than the first train. Find the
asked by Anonymous on April 9, 2018 
economics
for a charity show the rate of adult passes Rs.20 more than the children pass.when a company sold 50 adult and 200 children passes,the amount collected is Rs.2250.find the price of an adult pass.
asked by salam jan on July 31, 2012 
calculus
Consider the curve defined by 2y^3+6X^2(y) 12x^2 +6y=1 . a. Show that dy/dx= (4x2xy)/(x^2+y^2+1) b. Write an equation of each horizontal tangent line to the curve. c. The line through the origin with slope 1 is tangent to the curve at point P. Find the
asked by Taeyeon on February 26, 2012 
Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.6g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
asked by bobert on September 28, 2013 
MATH ANALYSIS
How do i do this? According to Kepler's Laws, planets have elliptical orbits, with the sun at one of the foci. The farthest Pluto gets from the sun is 7.4 billion kilometers. The closest it gets to the sun is 4.4 billion kilometers. Find the equation of
asked by anonymous on December 7, 2009 
Science
a person watching through a window of an apartment sees a ball that rise vertically up then vertically down for a total time of0.5s.if the hieght of the window is 2m ,find the max hieght reached by ball above the window
asked by Tttt on November 28, 2016 
math
the daily production of two factories A and B are 300 and 200 bottle respectively .2% of the product o f each factory are found to be defective .if 6 defective bottle are randomly selected from a daily production of A and B .find the probability that 4 of
asked by david on April 9, 2017 
trig
An airplane is flying in the direction 148° with an airspeed of u = 920 kilometers per hour. Because of the wind, its groundspeed and direction are v = 820 kilometers per hour and 140°, respectively (see figure). Find the direction and speed of the wind.
asked by bob on November 2, 2015 
calculus optimization problem
A farmer has 460 feet of fencing with which to enclose a rectangular grazing pen next to a barn. The farmer will use the barn as one side of the pen, and will use the fencing for the other three sides. find the dimension of the pen with the maximum area?
asked by lori on March 30, 2013 
math
the elevation of a tower from a point on the ground is 30 at a point on the horizontal line passing through the foot of the tower and 100 metres nearer it, the angle of elevation is 60 find height of the tower and the distance of the first point from the
asked by sonia on September 6, 2015 
maths
1. If the first and third of three consecutive odd integers are added, the result is 51 less than five times the second integer. Find the third integer. 2. Write as a subtraction problem and evaluate. 15 less than 2 n, n+1, N+2, ... are consecutive
asked by francis on October 12, 2006 
Physics
Stones are thrown horizontally with the same velocity from the tops of two different buildings. One stone lands twice as far from the base of the building from which it was thrown as does the other stone. Find the ratio of the height of the taller building
asked by Tonya on September 15, 2013 
wayne
A crate of potatoes of mass 19.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are ìs = 0.68 and ìk = 0.36. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up the ramp
asked by tsubasa on February 12, 2013 
Math  Equation of Lines
Determine whether the following pairs of planes are coincident, parallel and distinct or neither. a) x + 3y  z  2 = 0 and 2x + 6y  2z  8 = 0 TEXTBOOK ANSWER: parallel and distinct Can someone show me how to find the vector equation or parametric
asked by Anonymous on March 25, 2008 
MATH
THE AMOUNT OF CLOTH USED TO MAKE FOUR CURTAINS IS GIVEN BY THE FUNCTION A=4X^2 + 40X WHERE X IS THE WIDTH OF ONE CURTAIN IN FEET AND a IS THE TOTAL AREA IN SQUARE FEET. FIND THE WIDTH THAT MAXIMIZES THE AREA OF THE CURTAINS. WHAT IS THE MAXIMUM AREA?
asked by Anonymous on October 7, 2014 
Math
A ladder is in a safe position if the height it reaches on the wall is four times the distance of the base from the wall. To the nearest tenth of a foot, find the length of the following ladder. The ladder must reach a 16foot height.
asked by Cass on May 7, 2013 
physics
A rocket burns 5kg per ejecting it as a gas with a velocity of 1600m/s relative to the rocket. How much force is exerted on the rocket. Also find the velocity exerted when its mass reduces to 1/200 of its initial mass.
asked by Rano on September 5, 2012 
PHYSICSSS please helppp ASAP
A 9.5kg watermelon and a 7.2kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and
asked by Anonymous on February 12, 2012 
Physics
An item is shot off the ground at a force of 31N and an angle of 36 degrees. In order to find the vertical force, would I use SIN, COSINE, or TANGENT? would it go 31 * COS/SIN/TAN (36) or 36 * COS/SIN/TAN (31)??
asked by Sarah on March 13, 2010 
Physics
Two children are playing on two trampolines. The first child can bounce 1.6 times higher than the second child. The initial speed up of the second child is 5.2 m/s. (a) Find the maximum height the second child reaches. (b) What is the initial speed of the
asked by Sydney on September 14, 2011 
Roberts
Last fall, a gardener planted 65 iris bulbs. She found that only 56 of the bulbs bloomed in the spring. a) Find the empirical probability that an iris bulb of this type will bloom b) How many of the bulbs should she plant next fall if she would like at
asked by Rose on December 9, 2007 
Application problems with fractionsþ
Cheryl is fitting a turquoise stone into a bear claw pendant. Find the diameter of the hole in the pendant. (The diameter, which is 7/8 inches, is the distance across the center of the hole. The two areas outside the hole are 3/16 inches in length.)
asked by Alex L. on October 10, 2011 
math :(
An observer stands on the edge of a 375 m high cliff. Below him is a river. He estimates that the angle of depression to the near bank of the river is 80° and the angle of depression to the far bank is 60°. Find the width of the river to the nearest
asked by T on March 23, 2018 
algebra1 HELP PLEASE Thanks you!!
The function gives the speed in feet per second (ft/s) of a freefalling object after it has fallen x feet (ignoring air resistance). FInd the speed of the object after it has fallen 25 feet. If necessary, round your answer to the nearest tenth.
asked by lisa on July 12, 2013 
Physics
A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1 6 g. Find the reading of the
asked by Mike on January 24, 2013 
Calc
Let f be the function that contains the point (1,8) and satisfies the differential equation dy/dx=10/(x^2+1) (a) Write the equation of the tangent to f at x=1. (b) Use your equation in part a to estimate f(0). (c) We know that the integral from 1 to 0
asked by Anon on February 15, 2014 
math
a rectangular plot of land has an area of 1050 m squared. its length exceeds its width by 5 m. find the length of the plot. i got x(x+5) is tha right? Area is LW, and in this case (w+5)w In your rendition, x is width. Add five to get length when you solve.
asked by ineedhelp on April 25, 2007 
Math Ms. Sue please help
Flying to Kampala with a tailwind a plane average 158km/h. On the return trip the plane only averaged 112km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air.
asked by Anonymous on February 28, 2013 
Math
Find the surface area for the given prism. A yellow rectangular prism with height of 8 inches, width of 14 inches, and depth of 10 inches. A. 564 in2 B. 664 in2 C. 1,120 in2 D. 1,080 in2
asked by Anonymous on February 25, 2019 
trigonometry
At a certain time, a lighthouse is south of a ship. Thirty minutes later, the ship bears N40°20'E from the lighthouse. If the ship is sailing east at 20 kilometers per hour,find the distance of the ship from the lighthouse at each time of observation.
asked by ymme on March 6, 2016 
statistics
400 draws are made at random with replacement from 5 tickets that are marked 2, 1, 0, 1, and 2 respectively. Find the expected value of: 1. the number of times positive numbers appear 2. the sum of all the numbers drawn 3. the sum of the positive numbers
asked by AmmanJordan on May 3, 2013 
Phsyicsssss helppp
A 9.5kg watermelon and a 7.2kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and
asked by Anonymous on February 12, 2012 
algebra
Sierra is going bowling with some of her friends. It will cost her $3.00 to rent her shoes and $4.50 per game that she plays. Let "g" be the number of games she plays. What is the equation in slope intercept form to find the number of games Sierra plays?
asked by doniee on May 22, 2017 
Physics
A light plane is flying at 25 degrees east of due magnetic north, while ascending at 15 degrees above the horizon; the plane is flying at 40 m/s. Find the planes celocity true to the delta x, delta y, and delta z?
asked by Collin on September 17, 2014 
physics
A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 21.12 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
asked by sarah on October 5, 2011 
Math
Graph the equations below accurately. Find the point of intersection of the two lines. You will type your x value in the first part and the y value in the second part of the question. If the answer if no solution then type NS in both parts and if the the
asked by Samay on November 27, 2017 
math
RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of
asked by fizz on April 20, 2014 
Simple Math
Please help me with this problem . It is not hard but I need some help . In a clinical trial, a drug used to relieve pain caused side effects in 9% of the patients who took it. For a new trial, two patients were selected at random. Find the probability
asked by Jessica on March 31, 2013 
math
Al's Rentals charges $25 per hour to rent a windsurfer and a wet suit. Wendy's charges $20 per hour plus $15 extra for a wet suit. Find the number of hours for which the total charges for bot would be the same. What is the cost?
asked by Anonymous on July 18, 2011 
Math
A sofa and chair have a total price of $ 600 not including tax. The tax rate is 6.25 %. Find the tax on the sofa if the price of the chair is $200. (a)$ 625 (b)$ 637.50 (c)$ 25 (d)$ 612.50 (e)$ 47.50 Im thinking its either B, or D but I am not quiet sure.
asked by Chris G on September 15, 2011 
algebra
roger is 5 feet tall and casts a shadow 3.5 feet longer. at the same time,the flagpole outside his school casts a shadow 14 feet long. write and solve a proportion to find the height of the flagpole.
asked by masruja on November 1, 2015 
Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.6g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
asked by bobert on September 28, 2013 
math
the track at our school is 440 yards long. it took Maya 10 minutes to jog around the track 4 times. find her speed in miles per hour. I first found out that r=d/t then we converted minutes to hour. we got 24 times around the track
asked by E6 on February 2, 2015 
math
A Standard wrench set has a different size from every 16th of an inch. If a 1/2 wrench is too small and a 5/8 wrench is too big, which size should fit. It's a picture of a number line 1/16 through 16/16.Explain how you used the number line to find your
asked by Ashiree on September 7, 2015 
Physics
A metre rule is found to balance at the 35cm mark. when a body of mass 50kg is suspended at the 10cm mark, the balance point is found to be at 20cm mark find a)the Mass of the ruler.
asked by Anonymous on October 27, 2018 
math
A multiplechoice test has 10 questions. Each question has 5 choices. If a student answers each question by guessing randomly, find the probability that the student gets: a) at most 4 questions correct b) at least 7 questions correct Please show your work.
asked by corey on May 23, 2011 
math
the velocity in m/sec of a particle moving along the xaxis is given by the function v(t) = 7cos3t, 0 < t < pi/2 Find the particle's displacement for the given time interval Displacement is the ending point minus the starting point. Ending point is at
asked by kasee on April 16, 2007 
Probability
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0
asked by Jonathan on March 3, 2015 
Algebra  Functions
Aaron is a salesman that earns a base salary of $1,200.00 per month and a commission of 5% on the amount of sales he makes. One month Aaron received a paycheck for $1,811.00. Find the amount of his sales for the month.
asked by Heather on March 12, 2014 
Sociology (Topic;education)
hi.. am dnt a topic in sociology and the topic is Education.I find this topic quite complicated and difficult, there are so many types of system of education.. what is the Compensatory education,,can 1 also have some examples of this types of education so
asked by Taskeen on April 17, 2010 
5th grade math
Im confused please help thank you To find the volume of a box, you multiply the length times the width time the height. The colume of a box is 36,000 cubic inches. Its width is 40 in and its height is 15 in. Eatimate the length of the box.
asked by Dakota on September 13, 2010 
Maths
A sector of a circle of radius 7cm subtending an angle of 270 degree at centre of the circle is use to form a cone? (A)find the base radius of the cone. (B)calculate the area of the base of the cone.
asked by Victor on February 2, 2016 
Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.5 g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
asked by Sunny on August 19, 2015 
math
the length of a rectangle is 1 cm less than twice its width. the area is 28 cm squared. find the dimensions of the rectangle. Just translate the English into "math" "the length of a rectangle is 1 cm less than twice its width" l=2w1 "the area is 28"
asked by anonymous on May 8, 2007 
Geometry need help pls
A. A parallelogram has a 7inch side and a 9inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it? B. (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the
asked by Ella on April 21, 2010 
MATH Fractions
Suppose there are 2 pieces of the cake left over,but you don't know how many pieces were in the whole cake. Explain how you could find the number of pieces in the whole cake if Taylor told you 1/6 of the cake was left. You may show your work in a drawing.
asked by Camille on January 16, 2014 
pre cal
A toy rocket is launched straight up from the roof of a garage with an initial velocity of 56 feet per second. The height h of the rocket in feet, at t seconds after it was launched, is described by h(t)=−16t2+56t+17. Find the maximum height of the
asked by ari on July 12, 2016 
accounting
for a charity show the rate of adult passes Rs.20 more than the children pass.when a company sold 50 adult and 200 children passes,the amount collected is Rs.2250.find the price of an adult pass.
asked by salam jan on July 31, 2012 
MATH Confused
How can I find the square root symbol to submit problems? Every time I choose the symbol that resembles the square root the actual format changes. When I sumbmit to you it looks like some crazy symbol. It makes the problems look totally different than they
asked by PLEASE HELP on October 29, 2011 
horizontal asymptote
Find the horizontal asymptotes of the function's graph y = 200 / (1+10e^(0.5x)) If you let x > minus infinty the exponential tends to zero and the function approaches 200. If x > infinity then the exponential becomes infinite and therefore the limit is
asked by Jen on November 9, 2006 
Math/Statistics
Last fall, a gardener planted 68 iris bulbs. She found that only 58 of the bulbs bloomed in the spring. Find the empirical probability that an iris bulb of this type will bloom. How many of the bulbs should she plant next fall if she would like at least 60
asked by Rodney on May 1, 2011 
chem
An optical rotation study gives a result of alpha=+140 degrees. Suggest a dilution experiment to test whether the result is indeed +140 degrees, and not 220 degrees. could polarimetry experiment be used to find the r and s isomer?
asked by Jason on November 18, 2008 
Physics
A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 12.40 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
asked by Blue on October 13, 2013 
Algebra
George paid $31.25 in taxi fare from the airport to the hotel. The cab charged $3.75 for the first mile plus $2.50 for each additional mile. The equation to find the number of miles, m, from the airport to the hotel would be: a. 3.75 + 2.50m + 31.25 =
asked by Mike on March 11, 2008 
Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
asked by Sarah on June 2, 2013 
Calculus
A radioactive isotope has a half life of 25 years. There was 100 mg of the isotope in 2005. (a) Find an expression for the amount of the isotope, A(t), that is still active using time t, measured in years since 2005. Your expression must be of the form
asked by Anonymous on November 20, 2018 
Math
At the potluck , there were 6 pecan pies, 7 lemon pies, 13 cherry pies, and 8 apple pies. Find the ratio of apple pies to the total number of pies. Write the ratio in simplest form. Then explain its meaning.
asked by Mia on October 24, 2011 
English
What are some good websites that help you create your own personalized avatars?? I need to create my own avatar for English class, but I can't find a good website. I need a website that helps create awesome avatars, such as those in video games. Any
asked by Anonymous on February 6, 2012 
Linear Algebra 2 question
Hello, I have another question from my linear algebra class. I'm asked to find the area of a triangle using determinants, but they don't give me the vertices, only the sides. Where A,B,C and D are the vertices, u and v are 2 out of the 3 sides. Now they
asked by Robert on August 26, 2012 
maths plse help me..
ABCD IS A PARALLELOGRAM, G IS THE POINT ON AB SUCH THAT AG = 2GB, E IS A POINT OF CD SUCH THAT CE = 2DE AND AND F IS A POINT OF BC SUCH THAT BF = 2FC. PROVE THAT 1) ar(EGB) = 1/6 ar(ABCD) 2)ar(EFC) = 1/2 ar(EBF) 3) ar(EBG) = ar(EFC) 4) FIND WHAT PORTION OF
asked by sania on December 12, 2012 
Physics
A young hockey player stands at rest on the ice holding a 1.3kg helmet. The player tosses the helmet with a speed of 4.6 m/s in a direction 13° above the horizontal, and recoils with a speed of 0.27 m/s. Find the mass of the hockey player.
asked by Daniel on November 19, 2011 
Math
Same as before, except I forgot to write how would you have verify it and explain how to solve it. the length of a rectangle is (x3) inches long, and the width 3 2/5 inches. If the area is 15 3/10 square inches, write and solve an equation to find the
asked by Johnathen on March 8, 2016 
Physics MOMENTUM
1) A 1 kg moving at 1 m/s ha s a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A 0.010n kg bullet is shot from a 0.500 kg gun at speed of 230 m/s. Find the speed of the gun.
asked by Isis on March 20, 2013 
Physics
In each cycle of its operation, a heat engine expels 6,100 J of energy and performs 1,300 J of mechanical work. (a) How much thermal energy must be added to the engine in each cycle? (J) (b) Find the thermal efficiency of the engine. (%)
asked by Sam on November 26, 2012 
Math
A man will pay RM 46000 to renovate an office . If the construction materials cost 25% more and the labour costs 30% more , he will need to pay RM 58540. Find the original cost of the construction meterial and the cost of labour .(Used equation)
asked by Lydia on October 10, 2017 
Math
if sin theta =1/2 and cos theta= √(3)/2. find tha values of tan theta, cot theta and csc. This question didn't ask for sec, but i am just curious what the answer for sec, can someone show me the answer for sec
asked by anonymous on March 7, 2019 
Science
Who were the parents of world famous biologist George Beals Schaller? Since this is not my area of expertise, I searched Google under the key words "'George Beals Schaller' parents" but did not find the names of his parents. Sorry that I cannot be of more
asked by Eddy on October 4, 2006 
statistics
A researcher wants to select 6 participants from the following data set using systematic sampling. The 12th participant is randomly selected. x=(1,2,3,4...48) 1. Find all of the selected participants. 2. How would youre answer differ if the last
asked by kacie on August 29, 2011 
Precalculus
Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π). 8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve algebraically for exact solutions in the interval [0,2π). Use your grapher only to support your algebraic work. 24. cos2x+sinx=0
asked by Anonymous on January 3, 2013 
Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
asked by Sarah on June 2, 2013 
Psychology
Could someone help to explain this question to me or help me to find sites to answer the question. I don't really understand the question in general. Discuss the physiological myths about hunger and satiety and those physiological factors that do
asked by Tim on December 21, 2008 
Stats
In an elementary school, 29% of children wear glasses. Suppose that a random sample of 31 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
asked by Semmy on October 13, 2015 
maths plse help me..
ABCD IS A PARALLELOGRAM, G IS THE POINT ON AB SUCH THAT AG = 2GB, E IS A POINT OF CD SUCH THAT CE = 2DE AND AND F IS A POINT OF BC SUCH THAT BF = 2FC. PROVE THAT 1) ar(EGB) = 1/6 ar(ABCD) 2)ar(EFC) = 1/2 ar(EBF) 3) ar(EBG) = ar(EFC) 4) FIND WHAT PORTION OF
asked by sunil on December 12, 2012 
Precal
How do you find range of theta values for a polar equation? Usually the range of theta is 0 to 2 pi radians (or 0 to 360 degrees). It could be defined for a wider range of angle, but 2 N pi + theta, with N any integer, is equivalent to theta in polar
asked by hksda on March 21, 2007 
physics
A bullet of mass m = 0.025 kg is fired with a speed of vi = 94.00 m/s and hits a block of mass M = 2.10 kg supported by two massless strings. The bullet emerges from the right side of the block with a speed of vf = 47.00 m/s. Find the height to which the
asked by anonymus on August 30, 2018 
final exam
a study shown that 20% of all college textbooks cost at least $70.it is known that the standard deviation of the prices of all college textbook is $9.50.assuming that prices of all college textbooks follow a normal distribution, find the mean price of all
asked by Anonymous on May 21, 2013 
4th grade
Go on a big number hunt.Find at least one number greater than 100,000.Findat least one number greater than a 1,000,000.Hint:look in a online .Record the number below and write at least 2 sentences to describe what each one is about? That's all the
asked by Jason on September 16, 2009 
trig
I need to find all solutions of the given equations for the indicated interval. Round solutions to three decimal places if necessary. 1.) 3sin(x)+1=0, x within [0,2pi) 2.) 2sin(sq'd)(x)+cos(x)1=0, x within R 3.) 4sin(sq'd)(x)4sin(x)1=0, x within R 4.)
asked by Emily on June 21, 2009 
calculus
find the volume of solid inside the paraboloid z=9x^2y^2, outside the cylinder x^2+y^2=4 and above the xyplane 1) solve using double integration of rectangular coordinate. 2) solve using double integration of polar coordinate 3)solve using triple
asked by AIRA on May 10, 2014 
Math
To find a baseball pitcher's earned run average (ERA), you can use the formula Ei = 9r, in which E represents ERA, i represents the number of innings pitched, and r represents the number of earned runs allowed.What is the equation for E?
asked by Chrizl on September 6, 2016 
Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
asked by Sarah on June 2, 2013 
Physics
Using light of wavelength 600.0nm in a double slit apparatus we find delta x = 1.0cm. If we use the same apparatus for light of wavelength 450.0 nm, what is the new delta x on the screen? Delta x = L*lambda/d But L and d are not given, so how do I approach
asked by Neenah on December 16, 2014 
Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
asked by Sarah on June 2, 2013 
Chemistry
Element X has a facecentered cubic unit cell structure. If the density of the element is measured to be 12.4 g/cm^3, what is the atomic radius of X? units are in pm (picometers) I can't seem to find how to get the atomic radius with only the density given
asked by Amanda on February 11, 2017 
Algebra
a theater wants to take in at least $2000 for a certain matinee. children's tickets cost $5 each and adult tickets cost $10 each. the theatre can seat up to 350 people. find five combinations of children and adult tickets that will make their goal.
asked by Samantha on January 4, 2016
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