
trig/math
A stained glass window is composed of 20 triangular sections, each with sides 6, 8, and 7inches. Find the total are of the window( to the nearest square inch).
asked by america on March 31, 2010 
Mathematics
Ray's gross pay is $320.09 a week. &46 is witheld for federal income tax, $24.04 for FICAtax, and $11.20 for other deductions. Find his net pay?
asked by Jacqueline on August 5, 2015 
Physics
A 170N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
asked by Billy on November 17, 2012 
calculus
a woman exerts a horizontal force of 25 lb on a crate as she pushes it up a ramp that is 10 ft long and iclined at an angle of 20 above the horizontal find the work done on the box
asked by Anonymous on March 2, 2011 
Math
The displacement (in meters) of a particle moving in a straight line is given by the equation of motion s = 4/t^2, where t is measured in seconds. Find the velocity of the particle at times t = a, t = 1, t = 2, and t = 3.
asked by Tay Tay on February 12, 2015 
Physics
A 180 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
asked by Khadija on February 11, 2014 
MATH
Consider F and C below. F(x, y, z) = 2xz + y2 i + 2xy j + x2 + 15z2 k C: x = t2, y = t + 2, z = 3t − 1, 0 ≤ t ≤ 1 (a) Find a function f such that F = ∇f. f(x, y, z) = x2z+xy2+5z3+C Correct: Your answer is correct. (b) Use part (a) to evaluate C
asked by Anon on November 9, 2016 
calc
find derivative using limit definition: f(x) = x  sqrt(x) so f'(x) = lim h>0 [f(x+h)  f(x)]/h but I keep trying to solve by multiplying by the conjugate but I can't figure it out..there's nothing that can be cancelled or anything and I can't get the
asked by terra on September 26, 2011 
math
A boat is travelling south at a rate of 18 km/h. A man walks across the deck from east to west at a rate of 16 km/h. Find the magnitude and direction of his velocity.
asked by Kelly on March 9, 2015 
Social Studies
Name 3 things that the Maya developed.... 1their own writing system 2their own counting system (including zero) 3built 100 stone cities Is #3 correct? I can't find anything else!
asked by I'm horrible on October 11, 2010 
PhysicsPlease help with formula
If I have an electric field around a charged object that is 2.95 x 10^6 N/C at a distance of 0.400m, how would I find the charge on the object? If you could just direct me with a formulathen I'll do it and check back with my answerThank you for you help
asked by Shiela on February 25, 2011 
chemistry
I read in a book that gas particles move rapidly in all directions. Somehow I find that random directions is better.The word "all" sounds a bit weird. What do you think?
asked by anne on February 9, 2009 
math
Find the equation of the line that passes through the points (2/3, 5/4)and (3, 5/6). Write the answer in slopeintercept form and standard form with integer coefficients. Thank you.
asked by daniel on November 16, 2012 
Math
Consider F and C below. F(x, y, z) = (2xz + y2) i + 2xy j + (x2 + 15z2) k C: x = t2, y = t + 2, z = 3t − 1, 0 ≤ t ≤ 1 (a) Find a function f such that F = ∇f. f(x, y, z) = x2z+xy2+5z3+C Correct: Your answer is correct. (b) Use part (a) to evaluate C
asked by Taylor on November 9, 2016 
chemistry
Carbon14 has a halflife of 5730 . In a plant fossil, you find that the has decayed to 1/32.0 of the original amount. How long ago was this plant alive?
asked by niles28 on December 3, 2012 
Mathematics
Let 5a+12b and 12a+5b be the side lengths of a rightangled triangle and 13a+kb be the hypotenuse, where a,b and k are positive integers. find the smallest possible value of k and the smallest values of a and b for that k.
asked by Maximillion Stone on September 7, 2009 
physics
a curve along the highway is to be banked for traffic expected to move at 80km/hr. find the angle of banking if the radius of the curve is 100 meters
asked by denver on November 23, 2016 
Calculus
Consider f(x)=200+8x^3+x^4. find the intervals on which function is increasing or decreasing, the local max and minimu values, the intervals of concavity and the inflection points
asked by Ashley on November 9, 2011 
math
Each letter of the alphabet is written on a separate piece of paper and placed in a box. Find the probability of drawing a vowel, {a, e, i, o, u}, or a letter in the word "segments"?
asked by chandice on September 24, 2009 
Physics
An 8.46 kg block drops straight down from a height of 0.90 m, striking a platform spring having a force constant of 9.90 102 N/m. Find the maximum compression of the spring
asked by Courtney on November 11, 2014 
Calc :(((((
The curve y = x/(1 + x^2)is called a serpentine. Find an equation of the tangent line to this curve at the point (4, 0.24). Round the slope and yintercept to two decimal places.)
asked by Tenshi on March 7, 2014 
Economics
A two product monopolist faces the demand and cost functions as below: Q1=402(P1)(P2) Q2=35(P1)(P2) C=(Q1)^2+2(Q2)^2+10 a) Find the profit maximizing levels of output and the price charged for each product.
asked by Anonymous on May 6, 2010 
math
Find the angle of depression from the top of a lighthouse 191 feet above the water level to the water line of a ship 4 miles offshore.
asked by nick on October 19, 2016 
chemistry
How do I find Experimental KCl solubility with this data: Test tube solute: Crystalizing temp KCl 35g/100ml 23.97C 40 39.55 45 57.10 50 75.20
asked by linda on December 17, 2009 
math
the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)6x^3+5x^26x. b)15x^251x+18. c)x^3+13x^2+32x+20. d)x^25x/23/2. e)x^39x. f)x^4+x^3x1 plz everyon help me
asked by parul on May 29, 2012 
math
Find equation of the line that passes through the points (2/3,5/4) and (3,5/6). write your answer in slopeintercept form and standard form with integer coefficients.
asked by emmy on November 27, 2012 
Calculus
Find the volume of the solid whose base is the region bounded by y=x^2 and the line y=0 and whose cross sections perpendicular to the base and parallel to the xaxis are semicircles.
asked by Becca on January 29, 2012 
Physics
A thin uniform rod of length 2m is bent at 90 degree angle from the mid point . find the centre of mass of bent road
asked by Anonymous on September 21, 2015 
trig.
A 2000 pound car is parked on a street that make an angle of 12 degrees with the horizontal figure Find the force perpendicular to the street.
asked by gary on April 4, 2010 
physics
A diver springs upward with an initial speed of 2.58 m/s from a 3.0m board. (a) Find the velocity with which he strikes the water.(b) What is the highest point he reaches above the water?
asked by Anonymous on January 28, 2014 
algebra
Annual profit in thousands of dollars is given by the function, P(x) = .1x2 + 50x  300, where x is the number of items sold, x ¡Ý 0. find the profit for 5 different values of x
asked by Betty on January 29, 2012 
Math
Find the radius of the circle if an arc of length 5 ft on the circle subtends a central angle of 135°. (Round your answer to two decimal places.)
asked by A on April 12, 2015 
Calculus
Sketch the region in the first quadrant enclosed by y=8/x, y=4x, and y=1/4x. Decide whether to integrate with respect to x or y. Then find the area of the region. Can someone please help me out with showing the work and not giving me some BS speech.
asked by Lawton on April 14, 2017 
basic geometry
could someone check my work. The width of a rectagular is one half the length. the perimeter of the rectangler is 72 inches Find the length of the picture 2L+2w=72 2L(1/2)+2w=72 2L(5)+2w=72 10L+2w=72 12=72 L=12/72 L=6 answered below
asked by vero on March 14, 2007 
Chemistry
I think the answer to this question is choice C, but im not sure. I have to find the product for this question. img*photobucket*com/albums/v712/DeadMan986/Q38*jpg The * in the link should be .
asked by Jules on April 28, 2011 
Calculus
Find an equation of the tangent line to the given curve at the given point y=(1/cosx)2cosx at((pi/3),1) y'=0+2sinx slope = √3 y=mx+b 1=(√3)(pi/3)+b b=(3√3pi)/3 3√3x3y+3√3pi=0 What did I do wrong? Thanks in advance.
asked by sh on March 24, 2010 
math
Find equation of the line that passes through the points (2/3,5/4) and (3,5/6). write your answer in slopeintercept form and standard form with integer coefficients.
asked by emmy on November 27, 2012 
Algebra
How do you factor ax^2+bx+c? I'm so confused. I remember my teacher saying to use the discriminant b^24ac but when I do find the answer what do I next? Please help! For ex. Factor the trinomial if possible. If it cannot be factored, write not factorable.
asked by Emma on April 28, 2013 
Math
A trough has width w=4ft, length L=19ft, and height h=7ft. Find the work to pump all of the water over the top of the trough with units.
asked by Nat on February 14, 2018 
Chemistry
At 25 degrees Celsius Ksp for CaSO4 is 2.5 x 10^5 suppose 100mL of 0.5M Na2SO4 is mixed with 100mL of 1.65 M Ca(NO3)2 find the initial concentrations of Ca^2+ and SO4^2
asked by Elise on February 23, 2019 
Physics
A 200N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
asked by Billy on January 14, 2013 
social studies
I need to answer the questions on my study guide, it is my homework but I forgot my book,I need to read chapter 3 it's about our earth,s renewable and non renewable resources.where else I find out about it
asked by lily on January 21, 2014 
Math
Use fundamental principle to find number of possible outcomes. Small,Medium,Large Orange juice, Apple Juice, Lemonade, and Milk
asked by Skk on April 2, 2019 
Geometry (math)
The center of two pulleys are 27cm apart. One has the raddius of 13cm and the other has a radius of 5 cm.. Find the length of the blet that surrounds the two pulleys rounded to 2 decimal places.
asked by Fominia on April 26, 2011 
Math
Why do you have to use estimation to find the number of triangles you need for the string? I was wondering why this question is quite confusing and i was wondering if you can explain it to me in a way i can understand it. I'm not looking for an answer just
asked by Jacob on October 21, 2016 
physics
A 175N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
asked by student on December 11, 2011 
Math
If the angle of elevation of a tower from two points at distance a and b where a is greater than b from its foot and in the same straight line from it are 30degree and 60degree ,find the height of the tower
asked by Vaibhavi singh on February 4, 2017 
Physics Constant Force question help.
A constant force acting on body mass 5 kg changes its speed from 2 m/s to 7 m/s , the direction of motion remains unchanged, find FORCE. answer is 2.5, but help me solve it, thanks
asked by Shahab Mirza on October 2, 2014 
physics
a satellite orbits the earth at an altitude of 5000 m above the surface of the earth. Assuming that acceleration due to gravity is still 9.8 m/s/s, find the time for 1 revolution.
asked by Elise on December 19, 2010 
probability
The population of 1500 construction trucks has load distributed normally with 6 tons and the standard deviation of 1 ton, find the probability that its load greater than 7
asked by lola on December 13, 2016 
physics
For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 0.9 cm in diameter. When supporting a 92kg climber, the rope elongates 2.0 m. Find its Young's modulus.
asked by jim on November 14, 2011 
Physics
An equilateral triangle has sides of 0.17 m. Charges of 9.0, +8.0, and +2.2 µC are located at the corners of the triangle. Find the magnitude of the net electrostatic force exerted on the 2.2µC charge.
asked by Z on January 26, 2009 
College Algebra
Find the time required for an investment of 5000 dollars to grow to 7900 dollars at an interest rate of 7.5% per year, compounded quarterly
asked by Marina on September 24, 2015 
algebra
Each letter of the alphabet is written on a separate piece of paper and placed in a box. Find the probability of drawing a vowel, {a, e, i, o, u}, or a letter in the word segment
asked by Anonymous on April 7, 2010 
Math
Hi! I was wondering if you guys could offer me help on the following problem. I am supposed to find the xintercepts of this problem, but all of my attempts have failed. I have tried factoring it ,and I tried the Rational Zero Theorem. Thanks for your
asked by Elizabeth on July 31, 2017 
Anatomy
Where can I find pictures of the sagittal view of the sheep brain and the human brain? And don't say just type into images because I did that. I need like a diagram not necessarily a picture.
asked by Christian on December 15, 2009 
PleaseHelp! Geometry!
Suppose that the area between a pair of concentric circles is 49pi. Find the length of a chord in the larger circle that is tangent to the smaller circle.
asked by BillyBobJoe on August 22, 2015 
Stats
if 5% of all calculators are defective, find the mean, variance, and standard deviation of a lot of 400 calculators. round your final answer to two decimal places if necessary.
asked by Megan on March 13, 2011 
Calculus
A box with a square base and open top must have a volume of 4,000 cm3. Find the dimensions of the box that minimize the amount of material used.
asked by Anna on January 28, 2014 
finite math
Find the present value of an ordinary annuity of $600 payments each made quarterly over 5 years and earning interest at 4% per year compounded quarterly.
asked by brittny on September 9, 2013 
trig
A tree casts a shadow of 27 meters when the angle of elevation of the sun is 26 degrees. Find the height of the tree to the nearest meter. a. 24 m b. 15 m c. 320 m d. 13 m
asked by Anonymous on May 23, 2012 
PreAlgebra
I am having trouble understanding how to answer this type of question: Find each procuct or quotient: Express using positive exponents: (b to the power of negative 10)(b to the power of 5)
asked by Nina on November 23, 2009 
geometry
I tired but answers don't make since. Problem is segment CD is perpendicular bisector of segment AB. Need to find lengths of AC (9y6), AD (3x), and AE ((5x +6). Others: BE=(5x+ y), BD (x + 10) and CB (7y). Figure like a kite. HELPPPPPPPPPP.
asked by miranda on April 15, 2015 
Algebra
My standardform equation is (x+3)^2+(y+2)^2=4. Do I find the radius by doing the square root of four? I just wanted to check on this. Based on the example in my book, it seemed like this is the way to do this, but I wanted to make sure, because they
asked by Natalia on November 30, 2008 
Chemistry
"There are two ions per formula unit in this compound. The 1 anion has 8 more electrons than the cation." I need to find the Chemical formula/name. Any suggestions on how to start? This can have more than one correct answer.
asked by Hanna on October 15, 2007 
WW2
When Canadian troops were sent to Great Britian in WW2 were did they go to train for the war? (training camps?) and if they did go to traiing camps, were they`re any names for them. I looked everywhere but i cant seem to find a name
asked by Lena on December 16, 2007 
Albegra
diego wrote one equation to find a missing angle measure.Write three more equations to solve the same problem 180 grade  =48 grade
asked by Isabella on March 2, 2017 
Math
good evening, I was wondering if you could direct me in right direction to lean how to evaluate a line that is there with two numbers and I have to find out how to write it. Either by factions or whole numbers. Thank you for you time.
asked by Mary Ann on July 1, 2015 
math
The displacement (in meters) of a particle moving in a straight line is given by the equation of motion s = 6/t2, where t is measured in seconds. Find the velocity of the particle at times t = a, t = 1, t = 2, and t = 3.
asked by Yuxiang Nie on February 21, 2019 
environmental science
How many deaths occur due to water borne disease in countries with chlorinated water systems? I have been trying to find this statistic. Can someone please give me a reference. Thank you
asked by health on February 11, 2011 
maths
the length of the diagonals of a rhombus are 24cm and 32cm. the perimeter of the rhombus is (A) 9cm (B) 128cm (C) 80cm (D) 56cm plz do explain how to find. thank you
asked by chinnu on August 31, 2011 
Math
Find the area of composite polygon shown below top 110cm. Angel side 50cm. Bottom 180cm. Side 140cm
asked by Raven on May 22, 2017 
Math
A neighborhood garden that is 2/3 of an acre is to be divided into 4 equal size sections. Write and solve an equation to find the size of each section. 3/2 x 4/1 = 12/2 =6. But need help in explaning the 6. 6 what?
asked by Leeah on September 28, 2015 
Social Studies
am doing a project on air trasportation I know I should write about planes and jets hot air balloons and helicopter...but I cant seems to find the answers on the internet can somone please help me.
asked by ashley on February 25, 2009 
Physics
A rocket, initially at rest, is fired vertically with an upward acceleration of 10 m/s2. At an altitude of 500 m, find its velocity. 1000 m/s 500 m/s 100 m/s 10 m/s
asked by Maryam on October 2, 2013 
math
Suppose you deposit $350 in a bank account that pays 6% annual simple interest. Find the interest earned in 4 months and in 1 year.
asked by Anonymous on February 27, 2015 
Calculus
let a hemisphere of radium 5 be cut by a plane parallel to the base of the hemisphere thus forming a segment of height 2. find its volume using cylindrical shells... thanks
asked by Oswaldo on October 31, 2010 
physics
A 210N box is placed on an inclined plane that makes a 40.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
asked by cbb on October 19, 2009 
business
How long is a license to practice medicine in your own organization good for? I live in florida and can not find this answer so am sure i am not looking in the right place. can you help?Podiatric medicine is what i am working on.
asked by lois on August 9, 2010 
math
if the rate for radioactive decay for a substance is r=.0063 and time is being measured in days how do you find the halflife of the substance to the nearest hour?
asked by mike on March 30, 2009 
Math
Create a word problem about a triangle in any sports field. Write measures of all sides. Find area of the triangle by using Heron's formula
asked by Aish on August 11, 2016 
Trigonometry
A car with a wheel of radius 14 inches is moving with a speed of 55 mph. Find the angular speed of the automobile to the nearest mile per hour. I got 55/14
asked by Joe Smith on February 12, 2013 
Maths
Triangle ABCis right angled at a .AD is perpendicular to BC.If AB=5cm,BC=13cm and AC=12cm,Find the area of triangle abc .Aiso findthe length of AD.
asked by anonymus on November 30, 2011 
physics
A 0.500kg ball is tied to the end of a 1.50m string and revolved so its andle thata is 35 degrees. a.) find the velocity of the ball (ans 2.43)
asked by Nicole on November 23, 2014 
Basic math
The company Acceptance had employees with monthly salaries of $1,700, $1400, $7,000, $1550, and $2,500. Find the median of these salaries. How do I answer this?
asked by Ruby on November 3, 2011 
Math
Find the cost of shingles for the gable roof below if one bundle covers approximately 33 ft to the power of two and costs $29.95. Length on top is 12.7 meters and down is 7.5 meters. Thanks
asked by Sharon on April 13, 2015 
Algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 x 10^2 um. Find the earthquake's magnitude. Round your answer to one decimal place.
asked by Paul on November 7, 2014 
Science
A Stone of 5 kg falls from the top of a cliff 50 m high and buries 1m in sand. Find the average resistance offered by the way sand and the time taken to penetrate.
asked by GAurav on August 10, 2017 
math
Each letter of the alphabet is written on a separate piece of paper and placed in a box. Find the probability of drawing a vowel, {a, e, i, o, u}, or a letter in the word "segments"?
asked by Aleah on October 1, 2009 
Calculus
A circular oilspill is spreading such that the radius is increasing at 0.5 metres per minute. Find the rate of increase of the are of the oil spill when the radius is 10m.
asked by Ally on May 20, 2014 
math/algebra
Find the hang time for a golf ball hit 150 feet into the air. The time T in seconds is given by the function T(x)= square root of x over 2
asked by april on June 23, 2016 
Precalculus
Find all solutions to 2 cos(theta) =  1 on the interval 0 less than or equal to theta less than 2 pi Give your answers as exact values, as a list separated by commas.
asked by Anonymous on April 7, 2013 
Chemistry
Find the number of moles of water that can be formed if you have 226mol of hydrogen gas and 108mol of oxygen gas. Express your answer with the appropriate units.
asked by Brittany on April 14, 2015 
math  another ?  exponentials
The two formulas f(t) = Pa^t and f(t) = Pe^rt provide two models for the same exponential growth or decay function. How are the exact values of a and r related? (Hint: Find a formula for a as a function of r)
asked by Anil on November 4, 2011 
Physics
A 4.3 kg particle starts from rest and moves a distance of 3.6 m in 2.5 s under the action of a single, constant force. Find the magnitude of the force. Answer in units of N.
asked by Wendia on September 27, 2010 
Maths
A big ball contains 3 red,2 white identical balls. If 2 balls are picked at random from the bag,one after the other and with replacement, find the probability that they are different colour?
asked by Jackson allies on June 20, 2019 
Physics
A sports car accelerates from a standing start to 85mi/h in 4.61s. a. Find its acceleration in feet per second squared. b. How many feet does it travel in that time?
asked by Brent on March 7, 2012 
Physics
A body which has three forces acting on it is in equilibrium. One force is 3N to the North, and another is 4N to the west. Find the magnitude and the direction of the third force. Show the vector diagram.
asked by Moyamé on July 20, 2014 
Math
For the graph y find both xintercepts by solving the equation 3x^2  24x + 45 =0 a) Direction of opening b)yintercepts c)Axis of symmetry d) vertex e) max or min
asked by Max on March 8, 2014 
Physics
Span of a bridge is 32.0m and has a mass of 5.38x10^4 kg. A truck of mass 11700kg is stopped at 11.4m from one end. Find upwards force that must be exerted by each pair
asked by Sihle on April 5, 2016
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